利用扩频信号进行跟踪测角技术方法的研究

Study of angle tracking methods using spread spectrum signal

本文小结了各种跟踪测角技术的方法。重点研究了利用直扩信号跟踪测角的2种不同方法:单通道体制方法、双通道自相关方法。单通道体制方法直接将和差信号在一个通道内解扩解调来提取角度误差信息;自相关方法利用和差两支路信号的相关性对两支路信号进行相关来提取角度误差信息。对这2种跟踪测角方法进行了理论分析、数学推导,并用Sys-tem View仿真软件进行了仿真实验。结果表明该2种方案可行。

The paper briefly summarizes the techniques of angle tracking, and especially studies two different methods of angle tracking using direct sequence spread spectrum signal, single channel system method and dual channel auto correlation method. The former method receives error of angle through directly demodulation of sum and margin signal in single channel. The latter one receives error of angle through correlation operation of the sum and margin signals from dual channels. This paper gives theory analysis and mathematics calculates of the two angle tracking methods, and completes the simulation on SystemView which proves the methods available.