A Method to Realize High-Security Satellite Communication

Detecting communication signal is the precondition for intercepting communications, so it is of great significance to make the interceptor incapable of detecting communication signal. This paper introduces the detection measures of DSSS (Direct-Sequence Spread Spectrum) signal and their detection lower-thresholds, and puts forward the idea that DSSS signal under the transparent forward mode cannot be detected under certain conditions, so the high-security satellite communication can be realized. Finally, the methods and key technologies to realize high-security satellite communication are presented.