CN109945743B - Active illumination type synchronous monitoring common-caliber tracking and aiming emission system and method - Google Patents
Active illumination type synchronous monitoring common-caliber tracking and aiming emission system and method Download PDFInfo
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- CN109945743B CN109945743B CN201910225845.3A CN201910225845A CN109945743B CN 109945743 B CN109945743 B CN 109945743B CN 201910225845 A CN201910225845 A CN 201910225845A CN 109945743 B CN109945743 B CN 109945743B
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Abstract
An active illumination type synchronous monitoring common-caliber tracking and aiming emission system and method belong to the field of photoelectric countermeasure. The tracking and transmitting system comprises a laser, two tracking and transmitting rotary table light guide mirrors, a tracking camera system, two laser adjusting mirrors, an off-axis three-mirror common-aperture system, a system spectroscope, a common-light-path adjusting mirror, a laser pointing monitoring system and a tracking and transmitting rotary table. The invention adopts a mode of synchronously monitoring the laser light path pointing in real time and quickly adjusting in real time to ensure the light path pointing stability of the non-common light path part. The effective tracking and aiming of the head-on and attacking target optical system is realized by adopting an active illumination type tracking and aiming mode. The optical-mechanical structure can effectively meet the requirements of high dynamic tracking and aiming, high damage energy density threshold, rapid turning of light beam pointing and tracking pointing, large temperature impact environment change, ultrahigh system reliability and the like required in the field of current photoelectric countermeasure.
Description
Technical Field
The invention belongs to the technical field of photoelectric countermeasure, and particularly relates to an active illumination type synchronous monitoring common-caliber tracking and aiming emission system and method.
Background
The general characteristic of photoelectric countermeasure is to realize the discovery and alarm to the goal at first, this process is realized by radar or photoelectric alarm generally; secondly, threat level ordering and true and false target identification are carried out on the found targets, and target azimuth information is guided to a tracking and aiming device of photoelectric countermeasure, and the process is generally realized by adopting a large system guiding or tracking and aiming system with an alarm function; then the tracking and aiming device realizes the accurate tracking and aiming of the target and emits the laser irradiation resisting target characteristic position, realizes the striking of the target and the like; finally, effect evaluation is carried out to determine whether the task is completed, and the process is generally realized by a photoelectric tracking device of the system. Based on the principle, the photoelectric countermeasure tracking system needs to accurately position a target characteristic point, simultaneously needs to ensure that a tracking optical axis and a laser emission optical axis are always highly coaxial, and needs to monitor the deviation between the tracking axis and the emission axis in real time and correct the deviation in real time. The above points are key problems that must be solved in electro-optical countermeasure equipment, especially in laser percussion systems where the accuracy requirements are very high.
The existing photoelectric countermeasure equipment mostly adopts the design idea that a tracking system and a laser emission system are mutually independent, meanwhile, a mode of passively receiving target radiation is generally adopted in the tracking process for target detection and tracking, and in addition, the existing equipment lacks the functions of monitoring and correcting the deviation of a laser emission light path and a tracking light path in real time. The current laser countermeasure mode can basically meet the requirement of photoelectric interference with low laser energy density, but is difficult to realize in the laser striking field of precisely striking a specific characteristic point of a target. Because the tracking and aiming emission system adopts the full airspace protection striking, and the prior laser device technology can not realize that the whole laser device and the tracking and aiming system are arranged inside the tracking and aiming emission rotary table, the laser can only be guided into the tracking and aiming system which moves randomly in real time by adopting a light guide mode, so that the real-time deviation exists between the tracking and aiming optical axis and the emission optical axis due to the structural deformation caused by the installation and adjustment limit and the environmental change impact, and simultaneously, the deviation of two different axes is caused at different distances of a target due to the inherent tracking and aiming position deviation of a non-common-caliber scheme, and the deviation is fatal to the countermeasure effect in the laser striking field with higher energy density requirement.
Disclosure of Invention
In order to solve the technical problems, the invention provides an active illumination type synchronous monitoring common-caliber tracking and aiming emission system and method.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the invention discloses an active illumination type synchronous monitoring common-caliber tracking and aiming emission system, which comprises:
tracking and shooting the rotary table;
a tracking camera, a tracking camera optical system, a first laser adjusting mirror, a second laser adjusting mirror, an off-axis three-mirror common-aperture system, a system spectroscope, a common-light-path adjusting mirror and a laser pointing monitoring system which are arranged in a frame in a horizontal shaft system of a tracking and aiming emission turntable; the tracking camera captures the target to obtain a contour image of the target;
the tracking emission rotary table light guide mirror I and the tracking emission rotary table light guide mirror II are arranged in a frame in a vertical shaft system of the tracking emission rotary table;
the laser device emits an illumination laser beam, and the illumination laser beam is irradiated onto a target after being collimated by a tracking and aiming emission turntable light guide mirror I, a tracking and aiming emission turntable light guide mirror II, a laser adjusting mirror I, a laser adjusting mirror II, a system spectroscope, a common light path adjusting mirror and an off-axis three-reflection common-caliber system in sequence;
the illumination laser beam is gained by a target optical system in the same waveband and then reflected by a laser pointing monitoring system to form an illumination echo laser beam, the illumination echo laser beam enters a tracking camera after being acted by an off-axis three-mirror common-aperture system, a common light path adjusting mirror, a system spectroscope and a tracking camera optical system in sequence, and an accurate clear point target image of an optical window of the target optical system is obtained through the tracking camera;
the laser device emits a hitting laser beam which is sequentially collimated by a tracking emission rotary table light guide mirror I, a tracking emission rotary table light guide mirror II, a laser adjusting mirror I, a laser adjusting mirror II, a system spectroscope, a common light path adjusting mirror and an off-axis three-reflection common-aperture system and then irradiates on a target.
Furthermore, the laser pointing monitoring system adopts a pyramid prism, and the pyramid prism is made of a semi-reflective and semi-transparent material and used for reflecting the illumination laser beam.
Furthermore, the first tracking and transmitting turntable light guide mirror and the second tracking and transmitting turntable light guide mirror can change the transmitting direction and the light spot position of the laser beam, and can guide the combined beam of the hitting laser beam, the illuminating laser beam and the illuminating echo laser beam into a frame in a horizontal shaft system of the tracking and transmitting turntable.
Further, the off-axis three-mirror common-aperture system comprises an off-axis three-mirror, an off-axis three-mirror primary mirror and an off-axis three-mirror secondary mirror; the off-axis three-mirror, the off-axis three-mirror primary mirror and the off-axis three-mirror secondary mirror form a primary beam expanding common light path system, the common light path adjusting mirror is located inside the primary beam expanding common light path system, and the combined beams of the striking laser beam, the illuminating laser beam and the illuminating echo laser beam are synchronously and rapidly adjusted through the common light path adjusting mirror, so that the pointing accuracy of the combined beams is ensured.
Further, the tracking camera and the tracking camera optical system constitute a tracking camera system; the tracking camera system adopts the receiving wavelength which is the same as the wave band of the illumination laser beam, and realizes the effective emission of the illumination laser beam and the effective reception of the illumination echo laser beam in a light splitting mode; the tracking camera system can receive a passive radiation signal and an illumination echo laser signal of a target and accurately track and aim an optical window of the target; the tracking camera system can receive the illumination echo laser beam returned after the laser pointing monitoring system is collimated, and whether the illumination laser beam has pointing deviation or not is determined through the change of the position of the laser point, wherein the light intensity of the illumination laser beam is weaker than that of the illumination echo laser beam.
Furthermore, the first laser adjusting mirror and the second laser adjusting mirror realize the pointing correction and the spot position correction of the deviated laser beam by adjusting the angles of the first laser adjusting mirror and the second laser adjusting mirror according to the laser pointing deviation provided by the laser pointing monitoring system, so as to ensure that the pointing direction of the laser beam is completely consistent with the lighting echo detection tracking pointing direction.
Further, the striking laser beam, the illumination laser beam and the illumination echo laser beam are coaxial lasers; the striking laser beam, the illumination laser beam, and the target optical system have the same or similar wavelength bands.
Furthermore, the system spectroscope adopts a mode of plating different film systems on two sides to realize effective light splitting of three paths of lasers, and simultaneously ensures effective reflection of passive light: the right side is plated with a high-transmittance polarizing film system capable of efficiently transmitting the striking laser beam and the illuminating laser beam, and the left side is plated with a high-transmittance polarizing film system capable of efficiently transmitting the striking laser beam and the illuminating laser beam and an unpolarized film system capable of efficiently reflecting the illumination echo laser beam and the passive beam in the unpolarized state.
Further, the laser wavelength of the illumination laser beam is consistent with the wave band of the target optical system, the optical system of the target is irradiated by the illumination laser beam, the accurate position of the optical system of the target is determined by the illumination echo laser beam returned to the target optical system, and high-precision tracking is realized.
The invention discloses an active illumination type synchronous monitoring common-caliber tracking and aiming emission method, which comprises the following steps:
(1) after the azimuth guiding information of the target is sent to the tracking and aiming emission rotary table, the tracking and aiming emission rotary table drives a shaft system of the tracking and aiming emission rotary table to quickly adjust and rotate to the azimuth of the target, and at the moment, the target is captured through a tracking camera to obtain a contour image of the target;
(2) the laser emits an illumination laser beam, and the illumination laser beam is emitted out after being collimated by a tracking emission rotary table light guide mirror I, a tracking emission rotary table light guide mirror II, a laser adjusting mirror I, a laser adjusting mirror II, an off-axis three-mirror, a system spectroscope, a common light path adjusting mirror, an off-axis three-mirror secondary mirror and an off-axis three-mirror primary mirror in sequence and then is irradiated on a target;
(3) the method comprises the steps that an illumination laser beam is gained by a target optical system of the same waveband and then reflected by a laser pointing monitoring system to form an illumination echo laser beam, the illumination echo laser beam enters a tracking camera after sequentially passing through an off-axis three-mirror primary mirror, an off-axis three-mirror secondary mirror, a common light path adjusting mirror, a system spectroscope and a tracking camera optical system, and at the moment, an accurate and clear point target image of an optical window of the target optical system is obtained through the tracking camera, so that high-precision tracking of the target optical system is realized;
(4) the laser emits a hitting laser beam, and the hitting laser beam is emitted out after being collimated by a tracking emission turntable light guide mirror I, a tracking emission turntable light guide mirror II, a laser adjusting mirror I, a laser adjusting mirror II, an off-axis three-mirror, a system spectroscope, a common light path adjusting mirror, an off-axis three-mirror and an off-axis three-mirror primary mirror in sequence, and irradiates the position of an optical system of a part easy to damage of a target to damage the specific position of the target;
(5) judging whether the striking of the system is effective or not by judging the gray level intensity of the illumination echo laser beam on the tracking camera; in the process, the target is always in a motion state, the position image of the target is extracted through the tracking camera, and the tracking and aiming emission turntable and the common light path adjusting mirror are driven to realize the accurate tracking and aiming of the target all the time.
The invention has the beneficial effects that: the invention fully considers the problems that the tracking point and the striking point of the current photoelectric countermeasure device are inconsistent, the position of a target sensitive optical system cannot be effectively captured, and the pointing change of a laser emission shaft due to the influence of factors such as environmental change adjustment process and the like cannot be effectively monitored and adjusted in the design process, and provides an active illumination type synchronous monitoring common-caliber tracking and emitting system. Compared with the prior art, the invention has the following advantages:
1. the invention adopts an off-axis three-trans common-caliber light path structure to realize the physical consistency of the tracking and aiming point and the laser hitting point. The light path design can solve the problem of principle deviation of a traditional non-common-aperture system on a tracking and aiming light path and a laser emission light path, and meanwhile, the complete common-aperture scheme can solve the defect that a beam-splitting common-aperture system laser and a tracking system cannot utilize the full aperture of a beam expanding system, and the purposes of higher laser emission beam expanding multiplying power, higher far-field energy density, larger detection system aperture and longer detection and tracking distance under the condition of controlling the system volume are achieved. Meanwhile, the off-axis three-reflection type laser beam expanding and tracking main mirror common-caliber structure can solve the contradiction between the laser beam expanding multiplying power and the tracking detection view field, and the system optimization matching is realized.
2. The invention adopts an active illumination type photoelectric countermeasure scheme, and can overcome the defect that the traditional passive detection has a short target action distance and cannot effectively distinguish each characteristic point of the target to find the accurate position of the fragile optical component of the target. The active illumination adopts a wave band consistent with the target tracking system, and after illumination light irradiates the whole target, because the optical system of the target has a gain effect in the wave band, the illumination laser echo reflected by the position of the optical system is stronger than the illumination laser full reflection light reflected by other positions. And the position of the target optical system is accurately captured by the common-caliber echo detection system. Because the image gray scale of the position is stronger than that of other positions and the formed point target has the characteristic of clear edge, the tracking and aiming system can effectively track the target with high precision, and compared with the traditional tracking mode, the tracking mode has the advantage of magnitude order improvement in precision.
3. The invention adopts a synchronous monitoring and real-time adjusting scheme to solve the problem that a laser emitting light path is inconsistent with a laser echo tracking light path due to system installation and adjustment errors and environmental changes. Meanwhile, as the target is in a real-time motion state, the tracking and aiming emission system is always in a rapid turning process, which can cause the common-caliber light path deviation caused by the deviation of the laser pointing direction and the rotary table shafting. And the real-time feedback laser rapid adjusting mechanism based on synchronous monitoring can realize rapid adjustment of the pointing direction of the laser emission light path, and ensure the complete consistency of the two optical axes in various environments and states.
Drawings
Fig. 1 is a schematic diagram of an active illumination type synchronous monitoring common-caliber tracking and aiming transmitting system of the invention.
In the figure; 1. the device comprises a laser device 2, a tracking and aiming emission turntable light guide mirror I, a tracking and aiming emission turntable light guide mirror II, a tracking and aiming beam combination laser, 5, a tracking camera, 6, a tracking camera optical system, 7, a laser adjusting mirror I, 8, a laser adjusting mirror II, 9, an off-axis three-mirror, 10, a system spectroscope, 11, a common light path adjusting mirror, 12, an off-axis three-mirror main mirror 13, a laser pointing monitoring system, 14, an off-axis three-mirror secondary mirror, 15, a hitting laser beam, 16, an illuminating laser beam, 17, an illuminating echo laser beam, 18 and a tracking and aiming emission turntable.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the active illumination type synchronous monitoring common-caliber tracking and aiming transmitting system of the present invention mainly comprises: the tracking and transmitting system comprises a laser 1, a tracking and transmitting turntable light guide mirror I2, a tracking and transmitting turntable light guide mirror II 3, a tracking camera system (a tracking camera 5 and a tracking camera optical system 6), a laser adjusting mirror I7, a laser adjusting mirror II 8, an off-axis three-mirror common-aperture system, a system spectroscope 10, a common light path adjusting mirror 11, a laser pointing monitoring system 13 and a tracking and transmitting turntable 18.
The off-axis three-reflector common-aperture system mainly comprises an off-axis three-reflector 9, an off-axis three-reflector primary mirror 12 and an off-axis three-reflector secondary mirror 14. The off-axis three-reflector common-caliber system is a complete common-path structure and an afocal system, and the requirements of high surface shape RMS (root mean square) are met during installation and adjustment.
In the off-axis three-reflector common-path system, three curvature reflectors, namely an off-axis three-reflector 9, an off-axis three-reflector primary mirror 12 and an off-axis three-reflector secondary mirror 14, form a primary beam expanding common-path system, a common-path adjusting mirror 11 is positioned in the primary beam expanding common-path system, and synchronous rapid adjustment of three optical combined beams (combined beams of a striking laser beam 15, an illumination laser beam 16 and an illumination echo laser beam 17, namely illumination striking combined beam laser 4) is realized through the common-path adjusting mirror 11, so that the pointing accuracy of the three optical combined beams is ensured.
The tracking and aiming emission rotary table 18 can rotate 360 degrees in the azimuth direction and the pitching direction, and the tracking camera 5, the tracking camera optical system 6, the laser adjusting mirror I7, the laser adjusting mirror II 8, the off-axis three-mirror common-aperture system, the system spectroscope 10, the common-light-path adjusting mirror 11 and the laser pointing monitoring system 13 are all arranged in a frame in a horizontal shaft system of the tracking and aiming emission rotary table 18.
The first tracking and transmitting rotary table light guide mirror 2 and the second tracking and transmitting rotary table light guide mirror 3 are both installed in a frame in a vertical shaft system of the tracking and transmitting rotary table 18, the first tracking and transmitting rotary table light guide mirror 2 and the second tracking and transmitting rotary table light guide mirror 3 can change the transmitting direction and the light spot position of a laser beam, and then illumination striking combined laser 4 (namely combined beams of a striking laser beam 15, an illumination laser beam 16 and an illumination echo laser beam 17) is accurately guided into the frame in a horizontal shaft system of the tracking and transmitting rotary table 18.
After the azimuth guiding information of the target is sent to the tracking and aiming emission rotary table 18, the tracking and aiming emission rotary table 18 drives the shaft system to quickly adjust and rotate to the azimuth of the target, and at the moment, the target can be captured through the tracking camera 5, so that the contour image of the target is obtained.
The laser 1 emits an illumination laser beam 16, and the illumination laser beam is emitted out after being collimated by a tracking and aiming emission turntable light guide mirror I2, a tracking and aiming emission turntable light guide mirror II 3, a laser adjusting mirror I7, a laser adjusting mirror II 8, an off-axis three-mirror 9, a system spectroscope 10, a common light path adjusting mirror 11, an off-axis three-mirror secondary mirror 14 and an off-axis three-mirror primary mirror 12 in sequence and then irradiates on a target.
The laser pointing monitoring system 13 is located at the outer edge of the off-axis three-mirror primary mirror 12 of the off-axis three-mirror common aperture system. The laser pointing monitor system 13 uses a cube-corner prism made of a semi-reflective and semi-transparent material to reflect the illumination laser beam 16.
The method comprises the steps that an illumination laser beam 16 is gained by a target optical system of the same waveband and then reflected by a laser pointing monitoring system 13 to form an illumination echo laser beam 17, the illumination echo laser beam 17 enters a tracking camera 5 after sequentially passing through an off-axis three-mirror primary mirror 12, an off-axis three-mirror secondary mirror 14, a common light path adjusting mirror 11, a system spectroscope 10 and a tracking camera optical system 6, and at the moment, an accurate clear point target image of an optical window of the target optical system is obtained through the tracking camera 5, and high-precision tracking of the target optical system is achieved.
The tracking camera 5 and the tracking camera optical system 6 constitute a tracking camera system. The tracking camera system uses the same receiving wavelength as the wave band of the illumination laser beam 16 to realize the effective emission of the illumination laser beam 16 and the effective reception of the illumination echo laser beam 17 by a light splitting mode. The tracking camera system can receive a passive radiation signal and an illumination echo laser signal of a target and accurately track an optical window of the target. The tracking camera system can receive the illumination echo laser beam 17 returned after the laser pointing monitoring system 13 collimates, and determines whether the illumination laser beam 16 has pointing deviation or not through the change of the position of the laser point, wherein the light intensity of the illumination laser beam 16 is weaker than that of the illumination echo laser beam 17.
The laser 1 emits a striking laser beam 15, and the striking laser beam is emitted after being collimated by a tracking and aiming emission turntable light guide mirror I2, a tracking and aiming emission turntable light guide mirror II 3, a laser adjusting mirror I7, a laser adjusting mirror II 8, an off-axis three-mirror 9, a system spectroscope 10, a common light path adjusting mirror 11, an off-axis three-mirror secondary mirror 14 and an off-axis three-mirror primary mirror 12 in sequence, and irradiates the position of an optical system of a part easy to damage of a target to implement the damage of the specific position of the target.
The laser adjusting mirror is of a two-stage structure, and performs spot position and laser beam pointing real-time correction on the striking laser beam 15 and the illumination laser beam 16 with deviation pointing respectively. The first laser adjusting mirror 7 and the second laser adjusting mirror 8 realize pointing correction and spot position correction of a deviated laser beam by quickly adjusting the angles of the first laser adjusting mirror 7 and the second laser adjusting mirror 8 according to laser pointing deviation provided by the laser pointing monitoring system 13 so as to ensure that the pointing direction of the laser beam is completely consistent with the pointing direction of the illumination echo detection and tracking.
Judging whether the striking effect of the system is effective or not by judging the gray level intensity of the illumination echo laser beam 17 on the tracking camera 5; in the process, the target is always in a motion state, the position image of the target is extracted through the tracking camera 5, and the tracking and aiming emission rotary table 18 and the common light path adjusting mirror 11 are driven to realize the accurate tracking and aiming of the target all the time.
The illumination laser beam 16 adopts a laser wavelength in accordance with the wavelength band of the target optical system, the optical system of the target is irradiated by the illumination laser beam 16, the accurate position of the optical system of the target is determined by the illumination echo laser beam 17 returned to the target optical system, and high-precision tracking is realized.
In the present invention, the impact laser beam 15, the illumination laser beam 16, and the illumination echo laser beam 17 are coaxial lasers. The wavelength bands of the striking laser beam 15, the illumination laser beam 16, and the target optical system are as close as possible.
In the invention, the surface of the system spectroscope 10 is coated, and the adopted coating scheme can realize the efficient transmission of the impact laser beam 15 and the illumination laser beam 16 and the effective reflection of the illumination echo laser beam 17. The system spectroscope 10 realizes effective light splitting of three paths of laser by plating different film systems on two sides, and simultaneously ensures effective reflection of passive light. Specifically, the method comprises the following steps: the right side of the system spectroscope 10 is plated with a high-transmittance polarized film system which can make the striking laser beam 15 and the illumination laser beam 16 efficiently transmit, and the left side is plated with a high-transmittance polarized film system which can make the striking laser beam 15 and the illumination laser beam 16 efficiently transmit, and is additionally provided with a non-polarized film system which can make the illumination echo laser beam 17 under the non-polarized state condition and the passive beam efficiently reflect.
The active illumination type synchronous monitoring common-caliber tracking and aiming emission method comprises the following specific working processes:
after the azimuth guiding information of the target is sent to the tracking and aiming emission rotary table 18, the tracking and aiming emission rotary table 18 drives a shaft system to quickly adjust and rotate to the azimuth of the target, and at the moment, the target is captured through the tracking camera 5 to obtain a contour image of the target.
Firstly, a laser 1 emits an illumination laser beam 16, and the illumination laser beam is emitted out after being collimated by a tracking and aiming emission turntable light guide mirror I2, a tracking and aiming emission turntable light guide mirror II 3, a laser adjusting mirror I7, a laser adjusting mirror II 8, an off-axis three-mirror 9, a system spectroscope 10, a common light path adjusting mirror 11, an off-axis three-mirror secondary mirror 14 and an off-axis three-mirror primary mirror 12 in sequence and then is irradiated on a target.
Then, the illumination laser beam 16 is gained by the target optical system of the same wave band and then reflected by the laser pointing monitoring system 13 to form an illumination echo laser beam 17, the illumination echo laser beam 17 enters the tracking camera 5 after sequentially passing through the off-axis three-mirror primary mirror 12, the off-axis three-mirror secondary mirror 14, the common light path adjusting mirror 11, the system spectroscope 10 and the tracking camera optical system 6, at this time, the accurate clear point target image of the optical window of the target optical system is obtained through the tracking camera 5, and the high-precision tracking of the target optical system is realized.
Secondly, the laser 1 emits a striking laser beam 15, and the striking laser beam is sequentially collimated by a tracking and aiming emission turntable light guide mirror I2, a tracking and aiming emission turntable light guide mirror II 3, a laser adjusting mirror I7, a laser adjusting mirror II 8, an off-axis three-mirror 9, a system spectroscope 10, a common light path adjusting mirror 11, an off-axis three-mirror 14 and an off-axis three-mirror main mirror 12 and then emitted out, and irradiates the position of an optical system of a part easy to damage of a target to implement the damage of the specific position of the target.
Finally, judging whether the striking of the system is effective or not by judging the gray scale intensity of the illumination echo laser beam 17 on the tracking camera 5; in the process, the target is always in a motion state, the position image of the target is extracted through the tracking camera 5, and the tracking and aiming emission rotary table 18 and the common light path adjusting mirror 11 are driven to realize the accurate tracking and aiming of the target all the time.
The laser emitting and laser echo receiving common-caliber part light path can realize an echo point, namely a tracking point, namely an aiming point, and an aiming point, namely a striking point, and the laser light guide part is not positioned in the common-caliber part light path due to the limitation of the principle, and the striking point can be deviated due to the directional deviation of the laser of the part, but the invention realizes the integration of three beams of a striking laser beam 15, an illumination laser beam 16 and an illumination echo laser beam 17 of the common-caliber part light path through the combined action of a laser directional monitoring system 13, a laser adjusting mirror I7 and a laser adjusting mirror II 8.
The active illumination type synchronous monitoring common-caliber tracking and aiming transmitting system can avoid the defects of the existing system in the implementation process and meet the laser striking requirements of high precision, long distance, high effectiveness and high reliability in the current photoelectric countermeasure field.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. Active illumination formula synchronous monitoring is bore tracking and is aimed transmission system altogether, its characterized in that includes:
tracking and shooting the rotary table;
a tracking camera, a tracking camera optical system, a first laser adjusting mirror, a second laser adjusting mirror, an off-axis three-mirror common-aperture system, a system spectroscope, a common-light-path adjusting mirror and a laser pointing monitoring system which are arranged in a frame in a horizontal shaft system of a tracking and aiming emission turntable; the tracking camera captures the target to obtain a contour image of the target;
the tracking emission rotary table light guide mirror I and the tracking emission rotary table light guide mirror II are arranged in a frame in a vertical shaft system of the tracking emission rotary table;
the laser device emits an illumination laser beam, and the illumination laser beam is irradiated onto a target after being collimated by a tracking and aiming emission turntable light guide mirror I, a tracking and aiming emission turntable light guide mirror II, a laser adjusting mirror I, a laser adjusting mirror II, a system spectroscope, a common light path adjusting mirror and an off-axis three-reflection common-caliber system in sequence;
the illumination laser beam is gained by a target optical system in the same waveband and then reflected by a laser pointing monitoring system to form an illumination echo laser beam, the illumination echo laser beam enters a tracking camera after being acted by an off-axis three-mirror common-aperture system, a common light path adjusting mirror, a system spectroscope and a tracking camera optical system in sequence, and an accurate clear point target image of an optical window of the target optical system is obtained through the tracking camera;
the laser device emits a hitting laser beam which is sequentially collimated by a tracking emission rotary table light guide mirror I, a tracking emission rotary table light guide mirror II, a laser adjusting mirror I, a laser adjusting mirror II, a system spectroscope, a common light path adjusting mirror and an off-axis three-reflection common-aperture system and then irradiates on a target.
2. The active illumination type synchronous monitoring common-caliber tracking and aiming emission system as claimed in claim 1, wherein the laser pointing monitoring system adopts a pyramid prism, and the pyramid prism is made of a semi-reflective and semi-transparent material and used for reflecting the illuminating laser beam.
3. The active illumination type synchronous monitoring common-caliber tracking and aiming emission system as claimed in claim 1, wherein the first tracking and emission turntable light guide mirror and the second tracking and emission turntable light guide mirror can change the emission direction and the light spot position of the laser beam, and can guide the combined beam of the striking laser beam, the illumination laser beam and the illumination echo laser beam into a frame in a horizontal axis system of the tracking and aiming emission turntable.
4. The actively illuminated, synchronously monitored, common-aperture tracking and transmitting system as claimed in claim 1, wherein said off-axis, three-mirror, common-aperture system comprises an off-axis, three-mirror, primary, secondary, and off-axis mirrors; the off-axis three-mirror, the off-axis three-mirror primary mirror and the off-axis three-mirror secondary mirror form a primary beam expanding common light path system, the common light path adjusting mirror is located inside the primary beam expanding common light path system, and the combined beams of the striking laser beam, the illuminating laser beam and the illuminating echo laser beam are synchronously and rapidly adjusted through the common light path adjusting mirror, so that the pointing accuracy of the combined beams is ensured.
5. The active illuminated synchronous surveillance common aperture tracking and aiming emission system of claim 1, wherein the tracking camera and tracking camera optics comprise a tracking camera system; the tracking camera system adopts the receiving wavelength which is the same as the wave band of the illumination laser beam, and realizes the effective emission of the illumination laser beam and the effective reception of the illumination echo laser beam in a light splitting mode; the tracking camera system can receive a passive radiation signal and an illumination echo laser signal of a target and accurately track and aim an optical window of the target; the tracking camera system can receive the illumination echo laser beam returned after the laser pointing monitoring system is collimated, and determines whether the illumination laser beam has pointing deviation or not according to the change of the position of the laser point, wherein the light intensity of the illumination laser beam is weaker than that of the illumination echo laser beam.
6. The active illumination type synchronous monitoring common-caliber tracking and aiming transmitting system as claimed in claim 1, wherein the first laser adjusting mirror and the second laser adjusting mirror realize the pointing correction and the spot position correction of the deviated laser beam by adjusting the angles of the first laser adjusting mirror and the second laser adjusting mirror according to the laser pointing deviation provided by the laser pointing monitoring system, so as to ensure that the pointing direction of the laser beam is completely consistent with the tracking pointing direction of the illumination echo detection.
7. The active illumination type synchronous monitoring common-caliber tracking and aiming transmitting system as claimed in claim 1, wherein the striking laser beam, the illuminating laser beam and the illuminating echo laser beam are coaxial lasers; the striking laser beam, the illumination laser beam, and the target optical system have the same or similar wavelength bands.
8. The active illumination type synchronous monitoring common-caliber tracking and aiming emission system as claimed in claim 1, wherein the system spectroscope adopts a mode of plating different film systems on two sides to realize effective light splitting of three paths of laser, and simultaneously ensures effective reflection of passive light: the right side is plated with a high-transmittance polarizing film system capable of efficiently transmitting the striking laser beam and the illuminating laser beam, and the left side is plated with a high-transmittance polarizing film system capable of efficiently transmitting the striking laser beam and the illuminating laser beam and an unpolarized film system capable of efficiently reflecting the illumination echo laser beam and the passive beam in the unpolarized state.
9. The active illumination type synchronous monitoring common-caliber tracking and transmitting system as claimed in claim 1, wherein the illuminating laser beam adopts a laser wavelength consistent with the waveband of the target optical system, the optical system of the target is irradiated by the illuminating laser beam, and the accurate position of the optical system of the target is determined and high-precision tracking is realized by the illuminating echo laser beam returning to the target optical system.
10. The active illumination type synchronous monitoring common-caliber tracking and transmitting method realized by adopting the active illumination type synchronous monitoring common-caliber tracking and transmitting system of any one of claims 1 to 9 is characterized by comprising the following steps:
(1) after the azimuth guiding information of the target is sent to the tracking and aiming emission rotary table, the tracking and aiming emission rotary table drives a shaft system of the tracking and aiming emission rotary table to quickly adjust and rotate to the azimuth of the target, and at the moment, the target is captured through a tracking camera to obtain a contour image of the target;
(2) the laser emits an illumination laser beam, and the illumination laser beam is emitted out after being collimated by a tracking emission rotary table light guide mirror I, a tracking emission rotary table light guide mirror II, a laser adjusting mirror I, a laser adjusting mirror II, an off-axis three-mirror, a system spectroscope, a common light path adjusting mirror, an off-axis three-mirror secondary mirror and an off-axis three-mirror primary mirror in sequence and then is irradiated on a target;
(3) the method comprises the steps that an illumination laser beam is gained by a target optical system of the same waveband and then reflected by a laser pointing monitoring system to form an illumination echo laser beam, the illumination echo laser beam enters a tracking camera after sequentially passing through an off-axis three-mirror primary mirror, an off-axis three-mirror secondary mirror, a common light path adjusting mirror, a system spectroscope and a tracking camera optical system, and at the moment, an accurate and clear point target image of an optical window of the target optical system is obtained through the tracking camera, so that high-precision tracking of the target optical system is realized;
(4) the laser emits a hitting laser beam, and the hitting laser beam is emitted out after being collimated by a tracking emission turntable light guide mirror I, a tracking emission turntable light guide mirror II, a laser adjusting mirror I, a laser adjusting mirror II, an off-axis three-mirror, a system spectroscope, a common light path adjusting mirror, an off-axis three-mirror and an off-axis three-mirror primary mirror in sequence, and irradiates the position of an optical system of a part easy to damage of a target to damage the specific position of the target;
(5) judging whether the striking of the system is effective or not by judging the gray level intensity of the illumination echo laser beam on the tracking camera; in the process, the target is always in a motion state, the position image of the target is extracted through the tracking camera, and the tracking and aiming emission turntable and the common light path adjusting mirror are driven to realize the accurate tracking and aiming of the target all the time.
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| CN110345809A (en) * | 2019-07-18 | 2019-10-18 | 中国人民解放军总参谋部第六十研究所 | External tracking mode laser transceiver |
| CN110487120B (en) * | 2019-09-09 | 2021-10-26 | 重庆连芯光电技术研究院有限公司 | Laser defense system and method for remote illumination |
| CN111595202A (en) * | 2020-05-29 | 2020-08-28 | 中国科学院长春光学精密机械与物理研究所 | Top-loading type light-weight long-short dual-waveband laser synthesis emitting device for small vehicle |
| CN112711143A (en) * | 2020-12-26 | 2021-04-27 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | High-energy laser emission tracking aiming system capable of continuously focusing |
| CN112764235B (en) * | 2021-01-21 | 2022-03-25 | 湖北航天技术研究院总体设计所 | Array light beam emitting and imaging device |
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| US4776691A (en) * | 1985-10-28 | 1988-10-11 | The Charles Stark Draper Laboratory, Inc. | Combination laser designator and boresighter system for a high-energy laser |
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