Laser radar stray light suppressing angle testing method
A technology of laser radar and test method, which is applied in the direction of radio wave measurement system, instrument, etc., can solve the problems of limited test space conditions, poor control of incident angle, etc., and achieve the goal of saving test cost, simple and convenient measurement, and shortened test time Effect
Active Publication Date: 2013-04-24
BEIJING INST OF CONTROL ENG
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Problems solved by technology
[0003] The technical solution of the present invention is to overcome the deficiencies of the prior art, provide a method for testing the laser radar stray light suppression angle, overcome the shortcomings of the limited test space conditions of the laboratory and the poor control of the incident angle, and the test method is simple , save a lot of test time and cost
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[0020] 1) First measure out figure 1 The placement position of the middle optical plane mirror 4 is at the angle relative to the laser radar 6: the point P is on the central line of the solar simulator 1 spot. 6 Measure the azimuth α1 and elevation angle β1 of point P in the body coordinate system of the lidar 6 .
[0021] 2) Then place the optical plane mirror 4 at point P, and adjust the reflection angle of the optical plane mirror 4 so that the sun's rays shoot to the laser radar 6 .
[0022] 3) Then put the cooperative radar target 3 on one side of the optical plane mirror 4, and allow the laser radar 6 to track the cooperative radar target 3;
[0023] 4) Move the radar cooperative target 3 to the direction of the optical plane mirror 4 until the laser radar 6 cannot track the radar cooperative target 3, and use the laser radar 6 to measure the azimuth α2 and the pitch angle β2 of the current position in the laser radar 6 body coordinate system;
[0024] 5) According to ...
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The invention discloses a laser radar stray light suppressing angle testing method which is capable of simulating sunlight to test by using a solar simulator in a laboratory. Sunlight emitted by the solar simulator can be reflected to any positions by regulating the direction of an optical plane mirror, so that an incident angle of the sunlight can be flexibly controlled, limits of laboratory space and environment conditions are overcome. In addition, the incident angle of the sunlight can be measured by a sensor, so that the number of other assisting measuring devices and testers in the test can be greatly reduced, testing cost is saved, achievement is convenient, and operation is simple. The laser radar stray light suppressing angle testing method can be applied to various stray light suppressing angle tests of optical sensors.
Description
technical field [0001] The invention relates to a method for testing the stray light suppression angle of an optical sensor. Background technique [0002] The development of the rendezvous and docking sensor lidar is one of the key relative measurement equipment for rendezvous and docking. As an optical measurement equipment, it compares the interference of direct incident sunlight and solar stray light reflected by other materials around the cooperative target in space use. Sensitive, so its ability to suppress stray light needs to be tested. In order to obtain the laser radar stray light suppression performance as truly and comprehensively as possible, according to the measurement performance indicators of the laser radar distance and angle, two test conditions need to be met, that is, a sufficiently strong sunlight intensity (greater than 0.8 solar constant) and a large Test the environment space (the relative distance between the cooperative target and the radar is grea...
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IPC IPC(8): G01S7/497
Inventor 冯烨范松涛王瀛梁红义
Owner BEIJING INST OF CONTROL ENG