Nothing Special   »   [go: up one dir, main page]

Pirodda, 1997 - Google Patents

Enhancing visibility through fog

Pirodda, 1997

Document ID
14847259287861582856
Author
Pirodda L
Publication year
Publication venue
Optics & Laser Technology

External Links

Snippet

A technique is proposed for enhancing visibility through dense fog. The technique assumes that retroreflecting elements are present in the field obscured by fog. An infrared laser beam scans the scene and the retroreflected light is focused, detected and suitably employed to …
Continue reading at www.sciencedirect.com (other versions)

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/42—Simultaneous measurement of distance and other co-ordinates
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G01S17/10—Systems determining position data of a target for measuring distance only using transmission of interrupted pulse-modulated waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/50—Systems of measurement based on relative movement of target
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00

Similar Documents

Publication Publication Date Title
US7667824B1 (en) Range gated shearography systems and related methods
CN107219533B (en) Laser radar point cloud and image co-registration formula detection system
Toida et al. Two-dimensional coherent detection imaging in multiple scattering media based on the directional resolution capability of the optical heterodyne method
US8373107B2 (en) Method and apparatus for non-line-of-sight imaging of a first area using photons detected from a second area
US5784023A (en) Speed detection method
US4359640A (en) Clear air turbulence detection
US5034810A (en) Two wavelength in-situ imaging of solitary internal waves
US6997558B2 (en) Volumetric display with dust as the participating medium
US20040066500A1 (en) Occupancy detection and measurement system and method
US6873716B1 (en) Confocal-reflection streak lidar apparatus with strip-shaped photocathode, for applications at a wide range of scales
US4623230A (en) Media survey apparatus and method using thermal imagery
US5889582A (en) Image-directed active range finding system
WO1997018487A1 (en) Imaging lidar system with strip-shaped photocathode and confocal-reflection
US5233415A (en) Imaging lidar employing transmitter referencing
US6400396B1 (en) Displaced-beam confocal-reflection streak lindae apparatus with strip-shaped photocathode, for imaging very small volumes and objects therein
NL8000561A (en) METHOD FOR MEASURING DISTANCES AND AN APPARATUS FOR CARRYING OUT THE METHOD
Pirodda Enhancing visibility through fog
EP0861445B1 (en) Imaging lidar system with strip-shaped photocathode and confocal reflection
WO2008023196A1 (en) Three-dimensional image recording and display apparatus
CA2554953C (en) Airborne laser image capturing system and method
JPWO2017195754A1 (en) Monitoring system
JP3598666B2 (en) Laser radar device
Soan et al. Comparative assessment of different active imaging technologies for imaging through obscurants
Gariepy et al. Picosecond time-resolved imaging using SPAD cameras
Cester et al. Laser vibrometry through a scattering medium with a single-photon camera.