引言在自旋稳定的同步卫星的同步控制器中,常常需要一个极低频锁倍器。它的作用是跟踪卫星转速fs(n),产生fD(n)=Nfs(n)角钟。利用角钟才能产生对同步卫星实行同步控制的一系列同步控制信号。很显然,角钟信号的好坏,直接影响到同步控制器的精 INTRODUCTION In the synchronous control of spin-stable geostationary satellites, an extremely low frequency doubler lock is often required. Its role is to track the satellite speed fs (n), resulting in fD (n) = Nfs (n) angle clock. The use of angle clocks can produce a series of synchronous control signals for synchronous control of synchronous satellites. Obviously, the angular clock signal is good or bad, directly affect the precision of the synchronous controller