Laser link communication-measurement composite system

Abstract

The invention discloses a laser link communication-measurement composite system. Through adoption of the laser link communication-measurement composite system, the payload weight, size and power consumption can be lowered. The laser link communication-measurement composite system is implemented by the following technical scheme: an optical antenna transmits a comprehensive optical signal to a rapid reflecting mirror through an eye lens at a transmitting end; reflected light splits a light beam of the comprehensive optical signal into two paths through a beam splitter; one path is transmitted into another beam splitter through the beam splitter to transmit the light beam into a coarse tracking module in order to extract a target position coarse miss distance, and a control voltage is applied to a two-dimensional turntable according to an embedded control algorithm; the other path of comprehensive optical signal is introduced into the field range of a fine tracking module through the beam splitter, and transmitted into the fine tracking module to extract a target position fine miss distance, the overall offset of fine field light spots is controlled, the light spots are introduced into the center of a fine tracking field to obtain target angle information, and the extracted target position fine miss distance is transmitted into a ground/satellite platform comprehensive electronic management and processing module to finish target capture and an aiming function and establish a communication link.

Description

technical field [0001] The invention relates to a laser communication and ranging composite system that can be widely used in the fields of aircraft, deep space exploration and ground measurement and control communication. Background technique [0002] With the rapid development of modern satellite technology, the amount of data that satellites need to transmit is also increasing rapidly, and satellites are developing in the direction of longer distances in deep space. The measurement of distance and angle is faced with large signal space attenuation and long transmission time. , complex communication environment and a series of problems. The measurement and control communication system is the only means of information exchange between the ground and the aircraft, and it is also an indispensable and important guarantee for the aircraft to give full play to its application efficiency. The traditional measurement and control communication system uses microwave and radio frequ...

AI Technical Summary

Problems solved by technology

To solve the problem that the existing spacecraft measurement and control and communication equipment is mainly in the microwave radio frequency band, the measurement accuracy and communication rate are low, the volume and power consumption are large, and the laser link does not have complete speed measurement, angle measurement, distance measurement, and communication functions. And other issues

Images