本文分析了扫描方式群导频调节系统中扫描循环周期、停留时间与选频窄带滤波器的关系以及变频接收的载频选择方法,并列出了取样离散导频调节器的数学表达式以及多站链接的调节过程。 In this paper, we analyze the relationship between scan cycle period, dwell time and narrow-band filter, as well as the selection of carrier frequency for variable-frequency reception in scanning pilot group pilot system. The mathematical expressions of sampled discrete pilot adjuster Station link adjustment process.