Field-of-view spliced wide-area rapid capturing laser communication terminal

Abstract

A field-of-view splicing type wide-area rapid capturing laser communication terminal belongs to the technical field of space laser communication. In order to solve the problems in the prior art, the terminal comprises a capturing and coarse tracking branch, a fine tracking branch, a beacon transmitting branch, a communication receiving branch and a fixed bracket. The capturing and coarse trackingbranch comprises a first capturing and coarse tracking unit, a second capturing and coarse tracking unit, a third capturing and coarse tracking unit and a fourth capturing and coarse tracking unit. The four capturing and coarse tracking units are distributed in a shape like a Chinese character 'tian 'to form a large splicing view field and are installed on the fixing support. The optical axes of the fine tracking branch, the beacon transmitting branch and the communication receiving branch are arranged in parallel; the center of the large splicing view field is coaxial with the communication receiving branch; the fine tracking branch circuit, the beacon transmitting branch circuit and the communication receiving branch circuit are installed on the fixing support, and optical axes of the three branch circuits are perpendicular to the face of the fixing support. Rapid scanning and capturing of a target are achieved, and the all-time working condition of space laser communication can be better met.

Description

technical field [0001] The invention relates to a field-of-view splicing type wide-area rapid capture laser communication terminal system, which belongs to the technical field of space laser communication. Background technique [0002] Space laser communication has the advantages of large communication capacity, high transmission rate, good confidentiality, and strong anti-interference ability, and has been widely used in military, aviation, aerospace and other fields. [0003] For traditional space laser communication terminals, two communication terminals need to accurately know the position information of both parties. The positions of both parties are generally notified to each other through wireless data transmission. Wireless data transmission has the disadvantages of poor confidentiality and weak anti-interference ability, which makes Under the circumstances, for the sake of confidentiality, the position information of one's own party cannot be transmitted to the othe...

AI Technical Summary

Problems solved by technology

[0003] For traditional space laser communication terminals, two communication terminals need to accurately know the position information of both parties. The positions of both parties are generally notified to each other through wireless data transmission. Wireless data transmission has the disadvantages of poor confidentiality and weak anti-interference ability, which makes In this case, for the sake of confidentiality, the position information of one's own party cannot be transmitted to the other party through wireless data transmission, which will increase the uncertainty area of ​​the other party's system capture and increase the difficulty of capture.

In traditional space laser communication, the single capture lens with a large field of view will increase the angular resolution of the capture system and affect the rough tracking accuracy of the system. Unable to work around the clock

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