应用Q－SS技术处理卫星定位通信系统中硬限幅的影响

Applying Q-SS technique for processing the hard limit effect 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；通过进一步分析首次发现了采用Ｑ－ＳＳ技术能够完全消除三阶和五阶的互调干扰。

This paper puts forward the application of a Quadri-phase spread spectrum(Q-SS)tech-nique in the system of satellite position and communication, and adopts the model of sateilitetransponder which is given by Swiss,deduces Q-SS signal formula at the output of sateuitetransponder. By further analysis,it is firstly discovered that Q-SS technique can completely e-liminate the third and the fifth intermodulation interferences。