Research on Initial Pointing of Inter-Satellite Laser Communication

Laser communication has the advantages of low power consumption, small volume, large data transmission rate and so on.This technology has a broad application prospect. ATP(Acquisition,Tracking,Pointing) system is an important part of laser communication, in which the initial pointing plays a crucial role as the first step of acquisition. This paper establishes a mathematical model of initial pointing of inter-satellite laser communication, and by using MATLAB to simulate this mathematical model, the initial azimuth and pitch angle are obtained, and compared with the initial pointing angle obtained by STK(Satellite Tool Kit) under ideal conditions. The experimental results prove the correctness and feasibility of the mathematical model.