卫星定位通信系统中互调干扰的抑制

Restrain of Intermodulation Interference in the System of Satellite Position and Communication

本文提出了在卫星定位通信系统中采用四相扩频 (Q- SS)技术 ,并沿用瑞士人给出的卫星转发器功率放大器的数学模型 ,推导了 Q- SS信号通过卫星转发器后输出的表示式 ;通过进一步分析发现了采用 Q-

This paper puts forward the application of a Quadri phase spread spectrum (Q SS) technique in the system of satellite position and communication, adopts a model of satellite transponder which is given by Swiss, and deduces Q SS expressions at the output of satellite transponder. By further analysis, it is discovered that Q SS technique can completely eliminate the third and the fifth intermodulation interference.