Study on Anti-interference Technology for Satellite Communication System

Satellite communication,as an important component of military communication and in the complicated electromagnetic environment,faces many threats from the adversary,including interception,interference and attack.This paper focuses on the principle of DSSS(direct sequence spread spectrum) and frequency-hopping technology while gives the simulation results and characteristics of DSSS and the frequency-hopping technology.These two technologies both feature spectrum spread during signal sending and original width recovery during signal receiving.They could ensure the smooth communication of one's own side in the war,and thus are of important significance in military communications.