摘要
本文论述了根据相关理论研制出的延时锁定环的工作原理,并将由相关函数推导出的跟踪环的相位误差函数用于控制压控振荡器,使本地码跟踪接收码。该环采用步进式捕获方式,在联机调试中工作稳定可靠,精确地测量了环路的误差曲线、捕获带宽、跟踪带宽和锁定时间。
This paper states the working principle of delay-locked loop(DLL)developed on the basis of correlation theoty, derives follow-up loopphase error function from correlation function to control voltage control oscil-lator and make local code to follow received code. In the united machine de-bugging,the loop with step-by-step attack way showed reliable operation andaccurate measurement of the DLL error curve,attack band width, follow-upband width and locked time.
关键词
延时
锁定环
相关技术
锁相技术
correlation technique
phase-lock technique
time delay
phase-locked loop
