CN116722361B - Antenna polarization stabilizing device and method under swinging platform - Google Patents
Antenna polarization stabilizing device and method under swinging platform Download PDFInfo
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- CN116722361B CN116722361B CN202310881932.0A CN202310881932A CN116722361B CN 116722361 B CN116722361 B CN 116722361B CN 202310881932 A CN202310881932 A CN 202310881932A CN 116722361 B CN116722361 B CN 116722361B
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- 230000010287 polarization Effects 0.000 title claims abstract description 95
- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000006641 stabilisation Effects 0.000 claims abstract description 30
- 238000011105 stabilization Methods 0.000 claims abstract description 30
- 238000009434 installation Methods 0.000 claims abstract description 28
- 238000012937 correction Methods 0.000 claims abstract description 12
- 230000004044 response Effects 0.000 abstract description 5
- 239000003381 stabilizer Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses an antenna polarization stabilizing device and method under a swinging platform. The device comprises the following specific steps: the polarization stabilizing device is arranged on a cross shaft of the azimuth-pitching-crossing triaxial antenna bracket, and comprises an attitude instrument, an installation datum plane, a motor, a gear, a position sensor, a control circuit, a feed source, a polarization stabilizing platform and a data interface, wherein the feed source and the cross shaft are coaxially designed and synchronously rotate. The method specifically comprises the following steps: installing an attitude instrument on the installation reference surface where the pitching axis is located, and measuring the deflection angle of the installation reference surface relative to the earth in real time by the attitude instrument; the control circuit reads the deflection angle value and the rotation angle value of the cross shaft of the attitude instrument in real time, the difference between the two angle values is used as an angle error to control a motor on the cross shaft, and the motor drives the cross shaft and the feed source to rotate through the gear, so that the real-time correction of the polarization deflection angle is realized. The invention effectively reduces the equipment quantity of the polarization stabilization system and improves the response speed and the control precision of the polarization stabilization system.
Description
Technical Field
The invention belongs to the technical field of antenna polarization stabilization control, and particularly relates to an antenna polarization stabilization device and method under a swinging platform.
Background
When measuring radars, communication equipment and the like in a linear polarization working mode work under a swinging platform, the gesture change of the platform can form a rotation effect on an antenna electric axis, so that polarization mismatch is caused, and measurement errors are deteriorated.
The conventional solution is to solve the polarization mismatch angle through azimuth-pitching-crossing three-axis antenna fork frame by utilizing coordinate transformation, and then to realize polarization stabilization through controlling the rotation of the crossing axis by a motor. The method cannot compensate polarization mismatch angles caused by deformation of an azimuth pitching fork frame structure, a shafting installation error and a platform attitude angle error, and larger compensation residues exist; meanwhile, due to the elasticity of the structure deformation process, delay exists in polarization mismatch correction, and instantaneity is deteriorated.
Disclosure of Invention
The invention aims to provide an antenna polarization stabilizing device and method under a swinging platform with high control precision and high response speed.
The technical solution for realizing the purpose of the invention is as follows: an antenna polarization stabilizing device under a swinging platform is added with a polarization stabilizing device on a cross axis on the basis of an azimuth-pitching-crossing triaxial antenna bracket;
the polarization stabilizing device comprises an attitude instrument and a position sensor, the polarization mismatch angle is measured in real time through the attitude instrument and the position sensor, and a motor on a cross shaft is utilized to drive a feed source to carry out rotation correction on the antenna polarization, so that the antenna polarization and the earth are kept relatively stable.
Further, the polarization stabilizing device is composed of an attitude instrument, an installation datum plane, a motor, a gear, a position sensor, a control circuit, a feed source, a polarization stabilizing platform and a data interface.
Further, the cross shaft and the feed source are coaxially designed and synchronously rotate.
Further, the attitude instrument is fixed on the installation reference surface and is used for measuring the deflection angle theta of the installation reference surface relative to the earth in real time 1 The position sensor is fixed on the cross shaft and is used for measuring the angle position theta of the polarization stabilized platform in real time 2 。
Further, the attitude instrument and the position sensor are connected with the control circuit through a data interface, and angle data of the installation datum plane and the polarization stabilization platform are sent to the control circuit in real time.
Further, the control circuit controls the offset angle theta 1 And theta 2 Subtracting to obtain angle error 1 －θ 2 The data is sent to a motor through a data line, the motor drives a polarization stabilization platform to rotate through a gear, and the angle error theta 1 －θ 2 Approaching 0, this indicates that the position of the intersecting axes is corrected to an angle consistent with the earth.
Further, the control circuit continuously reads the offset angle theta 1 And theta 2 And the rotation of the motor is continuously controlled, so that the relative fixation of the antenna polarization and the ground is realized under the real-time control condition, and the polarization stability is realized.
An antenna polarization stabilization method under a swinging platform comprises the following steps:
s1, mounting a position sensor on a cross shaft of an azimuth-pitch-cross triaxial antenna bracket, measuring a rotation angle value of the cross shaft in real time, coaxially designing a feed source and the cross shaft, and synchronously rotating;
s2, installing an attitude instrument on an installation reference surface where a pitching axis is located, and measuring the deflection angle of the installation reference surface relative to the ground in real time by the attitude instrument;
s3, a control circuit is utilized to read a deflection angle value and a cross axis rotation angle value of the attitude instrument in real time, the difference between the two angle values is used as an angle error to control a motor on a cross axis, and the motor drives the cross axis and a feed source to rotate through a gear, so that correction of polarization deflection angles of the feed source is realized;
and S4, repeatedly executing the step S3, and realizing the real-time correction of the polarization deflection angle to achieve polarization stabilization.
Compared with the prior art, the invention has the remarkable advantages that:
(1) The control precision is high: the achievable precision is not affected by the structural deformation of the triaxial antenna fork frame, the installation errors of azimuth axis and pitching axis;
(2) The response speed is high: only the cross shaft is controlled, and response lag caused by the structural deformation and rebound process of the azimuth pitching fork frame is avoided;
(3) The control system is simple to realize, has smaller operand and smaller volume, and is convenient for the miniaturized design of the system.
Drawings
Fig. 1 is a schematic structural diagram of an antenna polarization stabilizer under a swing platform according to the present invention
Fig. 2 is a schematic structural diagram of an antenna polarization stabilization device according to the present invention.
Fig. 3 is a flow chart of an antenna polarization stabilization method under the swing platform of the present invention.
Detailed Description
The invention provides an antenna polarization stabilization device and method under a swinging platform, which are used for polarization stabilization control of measuring radars, communication equipment and the like in a linear polarization working mode under a moving platform such as a ship, an airplane and the like.
The invention relates to an antenna polarization stabilizing device under a swinging platform, which is characterized in that a polarization stabilizing device 3 is added on a cross shaft 2 on the basis of an azimuth-pitching-crossing triaxial antenna bracket 1;
the polarization stabilizing device 3 comprises an attitude instrument 4 and a position sensor 8, the polarization mismatch angle is measured in real time through the attitude instrument 4 and the position sensor 8, and a motor 6 on the cross shaft 2 is utilized to drive a feed source 10 to carry out rotation correction on the antenna polarization, so that the antenna polarization is kept relatively stable with the ground.
As a specific example, the polarization stabilizing device 3 is composed of an attitude meter 4, an installation reference plane 5, a motor 6, a gear 7, a position sensor 8, a control circuit 9, a feed source 10, a polarization stabilizing platform 11 and a data interface 12.
As a specific example, the cross-axis 2 and the feed 10 are coaxially designed and rotated in synchronization.
As a specific example, the attitude meter 4 is fixed on the installation reference plane 5 for measuring the deflection angle θ of the installation reference plane 5 relative to the earth in real time 1 A position sensor 8 is fixed on the cross-shaft 2 for measuring in real time the angular position θ of the polarization-stabilized stage 11 2 。
As a specific example, the attitude meter 4 and the position sensor 8 are connected to the control circuit 9 through a data interface 12, and the angle data of the installation reference plane 5 and the polarization stabilization platform 11 are transmitted to the control circuit 9 in real time.
As a specific example, the control circuit 9 will deviate the angle θ 1 And theta 2 The angle is mistaken after subtraction operationDifference theta 1 －θ 2 The data is sent to the motor 6 through the data wire, the motor 6 drives the polarization stabilization platform 11 to rotate through the gear 7, and the angle error theta 1 －θ 2 Approaching 0, it is shown that the position of the intersecting axis 2 is corrected to an angle coincident with the earth.
As a specific example, the control circuit 9 continuously reads the offset angle θ 1 And theta 2 And the rotation of the motor 6 is continuously controlled, so that the relative fixation of the antenna polarization and the ground is realized under the real-time control condition, and the polarization stability is realized.
The invention also provides an antenna polarization stabilization method under the swinging platform, which comprises the following steps:
s1, mounting a position sensor 8 on a cross shaft 2 of an azimuth-pitch-cross triaxial antenna bracket 1, measuring the rotation angle value of the cross shaft 2 in real time, coaxially designing a feed source 10 and the cross shaft 2, and synchronously rotating;
step S2, installing a posture instrument 4 on an installation reference surface 5 where a pitching axis is located, wherein the posture instrument 4 measures the deflection angle of the installation reference surface 5 relative to the ground in real time;
s3, a control circuit 9 is utilized to read the deflection angle value of the attitude instrument 4 and the rotation angle value of the cross shaft 2 in real time, the difference between the two angle values is used as an angle error to control a motor 6 on the cross shaft 2, and the motor 6 drives the cross shaft 2 and a feed source 10 to rotate through a gear 7, so that the correction of the polarization deflection angle of the feed source 10 is realized;
and S4, repeatedly executing the step S3, and realizing the real-time correction of the polarization deflection angle to achieve polarization stabilization.
The invention will be described in further detail with reference to the accompanying drawings and specific examples.
Examples
Fig. 1 is a schematic diagram of an antenna polarization stabilization device in this embodiment. Referring to fig. 1, the antenna polarization stabilizer adds a polarization stabilizer 3 on a cross axis 2 on the basis of an azimuth-elevation-cross triaxial antenna bracket 1.
Referring to fig. 1 and 2, polarization stabilizer 3 is composed of attitude meter 4, mounting reference surface 5, motor 6, gear 7, position sensor 8, control circuit 9, feed source 10, polarization stabilization platform 11, and data interface 12.
The attitude instrument 4 is fixed on the installation reference surface 5 and can measure the deflection angle theta of the installation reference surface 5 relative to the earth in real time 1 The position sensor 8 is fixed on the cross shaft 2 and can measure the angle position theta of the polarization stabilization platform 11 in real time 2 。
The attitude instrument 4 and the position sensor 8 are connected with the control circuit 9 through a data interface 12, and send the angle data of the installation reference surface 5 and the polarization stabilization platform 11 to the control circuit 9 in real time, and the control circuit 9 changes the deflection angle theta 1 And theta 2 Subtracting to obtain angle error 1 －θ 2 The data line is sent to the motor 6, the motor 6 drives the polarization stabilization platform 11 to rotate through the gear 7, the coaxially installed feed source 10 and the cross shaft 2 synchronously rotate, and the angle error theta is generated 1 －θ 2 When the value is approximately 0, namely, the position of the cross shaft 2 is corrected to an angle consistent with the earth, the relative fixation with the earth is realized under the real-time control condition, and the polarization stability is realized. To ensure real-time performance, the control circuit 9 needs to continuously read the offset angle θ 1 And theta 2 And continuously controls the rotation of the motor 6.
Fig. 3 is a flow chart of an antenna polarization stabilization method under a swing platform:
a position sensor 8 is arranged on a cross shaft 2 of the azimuth-elevation-cross triaxial antenna bracket 1, the rotation angle value of the cross shaft 2 is measured in real time, and a feed source 10 and the cross shaft 2 are coaxially designed and synchronously rotate;
a posture instrument 4 is arranged on an installation reference surface 5 where a pitching axis is arranged, and the posture instrument 4 measures the deflection angle of the installation reference surface 5 relative to the ground in real time;
the deflection angle value of the attitude instrument 4 and the rotation angle value of the cross shaft 2 are read in real time by utilizing a control circuit 9, the difference between the two angle values is used as an angle error to control a motor 6 on the cross shaft 2, and the motor 6 drives the cross shaft 2 and a feed source 10 to rotate through a gear 7, so that the correction of the polarization deflection angle of the feed source 10 is realized; the step is repeatedly executed, so that the real-time correction of the polarization deflection angle is realized, and the polarization stability is achieved.
In summary, according to the antenna polarization stabilizing device under the swinging platform, the polarization mismatch angle is measured in real time through the angle sensor and the position sensor, and the crossed shaft motor is utilized to drive the feed source to rotate and correct the antenna polarization, so that the polarization and the ground are kept relatively stable. According to the invention, polarization stabilization is realized through the angle sensor and the control circuit, a plurality of intermediate links such as antenna azimuth angle, pitch angle and attitude angle information of the platform are not required to be acquired, the equipment quantity of the existing polarization stabilization system can be effectively reduced, the response speed and control precision of the polarization stabilization system are improved, and the method is suitable for measuring the stable control of the radar polarization under the swinging platform.
Claims (2)
1. An antenna polarization stabilizing device under a swinging platform is characterized in that a polarization stabilizing device (3) is added on a cross shaft (2) on the basis of an azimuth-pitching-crossing triaxial antenna bracket (1);
the polarization stabilizing device (3) comprises an attitude instrument (4) and a position sensor (8), the polarization mismatch angle is measured in real time through the attitude instrument (4) and the position sensor (8), and a motor (6) on the cross shaft (2) is utilized to drive a feed source (10) to rotationally correct the polarization of the antenna, so that the polarization of the antenna is kept relatively stable with the ground;
the polarization stabilizing device (3) is composed of an attitude instrument (4), an installation reference plane (5), a motor (6), a gear (7), a position sensor (8), a control circuit (9), a feed source (10), a polarization stabilizing platform (11) and a data interface (12);
the cross shaft (2) and the feed source (10) are coaxially designed and synchronously rotate;
the attitude instrument (4) is fixed on the installation reference surface (5) and is used for measuring the deflection angle theta of the installation reference surface (5) relative to the earth in real time 1 A position sensor (8) is fixed on the cross shaft (2) for measuring the angle position theta of the polarization stabilization platform (11) in real time 2 ；
The attitude instrument (4) and the position sensor (8) are connected with the control circuit (9) through a data interface (12), and angle data of the installation reference surface (5) and the polarization stabilization platform (11) are sent to the control circuit (9) in real time;
the control circuit (9) controls the deflection angle theta 1 And theta 2 Subtracting to obtain angle error 1 －θ 2 The data is sent to a motor (6) through a data line, the motor (6) drives a polarization stabilization platform (11) to rotate through a gear (7), and the angle error theta 1 －θ 2 Approaching 0, indicating that the position of the intersecting axis (2) is corrected to an angle consistent with the earth;
the control circuit (9) continuously reads the deflection angle theta 1 And theta 2 And the rotation of the motor (6) is continuously controlled, so that the relative fixation of the polarization of the antenna and the ground is realized under the real-time control condition, and the polarization stability is realized.
2. A method for stabilizing the polarization of an antenna under a rocking platform, characterized in that the method is based on the device for stabilizing the polarization of an antenna under a rocking platform according to claim 1, said method comprising the steps of:
s1, mounting a position sensor (8) on a cross shaft (2) of an azimuth-elevation-cross triaxial antenna bracket (1), measuring the rotation angle value of the cross shaft (2) in real time, coaxially designing a feed source (10) and the cross shaft (2), and synchronously rotating;
s2, installing a posture instrument (4) on an installation reference surface (5) where a pitching axis is located, wherein the posture instrument (4) measures the deflection angle of the installation reference surface (5) relative to the earth in real time;
s3, a control circuit (9) is used for reading a deflection angle value of the attitude instrument (4) and a rotation angle value of the cross shaft (2) in real time, the difference between the two angle values is used as an angle error to control a motor (6) on the cross shaft (2), and the motor (6) drives the cross shaft (2) and the feed source (10) to rotate through a gear (7), so that correction of polarization deflection angles of the feed source (10) is realized;
and S4, repeatedly executing the step S3, and realizing the real-time correction of the polarization deflection angle to achieve polarization stabilization.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310881932.0A CN116722361B (en) | 2023-07-18 | 2023-07-18 | Antenna polarization stabilizing device and method under swinging platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310881932.0A CN116722361B (en) | 2023-07-18 | 2023-07-18 | Antenna polarization stabilizing device and method under swinging platform |
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| CN116722361A CN116722361A (en) | 2023-09-08 |
| CN116722361B true CN116722361B (en) | 2023-12-19 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0276530A1 (en) * | 1987-01-28 | 1988-08-03 | Hercules Incorporated | Millimeter wave length guidance system |
| EP1986016A1 (en) * | 2007-04-25 | 2008-10-29 | Saab Ab | Device and method for controlling a satellite tracking antenna |
| JP2013005277A (en) * | 2011-06-17 | 2013-01-07 | Mitsubishi Electric Corp | Antenna polarization angle error calculation method and antenna polarization angle control device |
| CN103019259A (en) * | 2012-12-07 | 2013-04-03 | 北京爱科迪信息通讯技术有限公司 | Automatic compensation system and compensation method of gesture of portable satellite antenna |
| WO2014018461A2 (en) * | 2012-07-23 | 2014-01-30 | Trimble Navigation Limited | Sky polarization sensor for absolute orientation determination |
| CN103746186A (en) * | 2013-12-24 | 2014-04-23 | 山东英特力光通信开发有限公司 | Portable Ku-waveband marine satcom-on-the-move satellite communication antenna system |
| CN103985952A (en) * | 2014-03-24 | 2014-08-13 | 中国人民解放军63680部队 | Shipborne A-E-C triaxial satellite communication antenna polarization deviation angle real-time correction method |
| CN110391839A (en) * | 2019-08-28 | 2019-10-29 | 成都卫讯科技有限公司 | Portable satellite earth station |
| CN115714263A (en) * | 2022-11-16 | 2023-02-24 | 南京熊猫电子股份有限公司 | Five-axis linkage self-adaptive antenna attitude automatic control device, control method and system |
-
2023
- 2023-07-18 CN CN202310881932.0A patent/CN116722361B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0276530A1 (en) * | 1987-01-28 | 1988-08-03 | Hercules Incorporated | Millimeter wave length guidance system |
| EP1986016A1 (en) * | 2007-04-25 | 2008-10-29 | Saab Ab | Device and method for controlling a satellite tracking antenna |
| JP2013005277A (en) * | 2011-06-17 | 2013-01-07 | Mitsubishi Electric Corp | Antenna polarization angle error calculation method and antenna polarization angle control device |
| WO2014018461A2 (en) * | 2012-07-23 | 2014-01-30 | Trimble Navigation Limited | Sky polarization sensor for absolute orientation determination |
| CN103019259A (en) * | 2012-12-07 | 2013-04-03 | 北京爱科迪信息通讯技术有限公司 | Automatic compensation system and compensation method of gesture of portable satellite antenna |
| CN103746186A (en) * | 2013-12-24 | 2014-04-23 | 山东英特力光通信开发有限公司 | Portable Ku-waveband marine satcom-on-the-move satellite communication antenna system |
| CN103985952A (en) * | 2014-03-24 | 2014-08-13 | 中国人民解放军63680部队 | Shipborne A-E-C triaxial satellite communication antenna polarization deviation angle real-time correction method |
| CN110391839A (en) * | 2019-08-28 | 2019-10-29 | 成都卫讯科技有限公司 | Portable satellite earth station |
| CN115714263A (en) * | 2022-11-16 | 2023-02-24 | 南京熊猫电子股份有限公司 | Five-axis linkage self-adaptive antenna attitude automatic control device, control method and system |
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