ST002脉冲鉴相器(见本刊1981年第2期)在稳频、锁相及其他电路中,已有广泛的应用。但是,应用在角度控制系统中时,却没有取得成功。其原因是它的某些性能有缺陷,使它的输出信号不能反映出角度的大小,从而也破坏了系统的稳定性,使系统不能正常工作。这些缺陷主要是输出具有双值性、输出状态的不确定性及较低的抗干扰性。应当指出,上述缺陷对于稳频锁相回路来说,并不造成多大危害,至多不 ST002 pulse phase detector (see issue 2, 1981) in frequency stabilization, phase-locked and other circuits, has been widely used. However, when used in angle control systems, it did not succeed. The reason is that some of its performance is flawed, so that its output signal does not reflect the size of the angle, thus undermining the stability of the system so that the system can not work properly. These defects are mainly the output with dual value, the output state of the uncertainty and low immunity. It should be noted that the above defects for the frequency stabilization of the PLL, does not cause much harm, at most not