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文章在对信号的捕获方法进行了研究的基础上,将展开对扩频信号跟踪方法的研究与设计。通过对锁相环的基本原理进行阐述,采用两种特殊的锁相环——DLL和Costas环分别实现伪码跟踪环路和载波跟踪环路的设计。
Based on the research of the signal acquisition method, the article will start the research and design of the spread spectrum signal tracking method. Based on the basic principle of PLL, two special phase-locked loops (DLLs and Costas loops) are used to design pseudo-code tracking loop and carrier tracking loop respectively.