A fast asynchronous positioning device and method for a large-angle laser target
A technology of positioning device and positioning method, applied in the field of wireless optical communication, can solve the problems of uncertain position of communication object, small divergence angle of laser carrier, unable to establish chain in optical band, etc., to reduce handshake requirements, increase optical power density, and facilitate the The effect of one-way locking on the target
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[0022] The present invention will be further described below in conjunction with the accompanying drawings.
[0023] Such as figure 1 As shown, a large-angle laser target rapid asynchronous positioning device disclosed by the present invention is composed of a laser detection group 1, a beacon laser emission group 2, a laser cube mirror 3, a processing circuit group 4 and a servo tracking mechanism 5. The processing circuit group 4 provides the laser detection group 1 with power supply, signal calculation processing, control of the servo tracking mechanism 5 and motor drive.
[0024] Such as figure 2 As shown, the laser detection group 1 is composed of a detection lens 11, a filter group 12, a motorized aperture 13 and a four-quadrant photodetector 14, and the four-quadrant photodetector 14 is used to accurately locate the position of the incident laser target. The method of separating detection by four quadrants can spatially locate the incident laser target in the 400-110...
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