摘要
在无源三阶环路滤波器的基础上,除了增加环路滤波器的环路带宽和降低相位裕量的参数以外,还可以通过增加硬件电路来提高环路的锁相速度;并提出了3种方法来检测锁相时间。
Based on the passive third-order loop filter, we can use a hardware circuit to improve the phase lock speed besides increasing the loop bandwidth of the loop filter and lowering the phase margin. In this paper, three methods to test the phase lock time were proposed.
出处
《电子产品可靠性与环境试验》
2012年第4期61-64,共4页
Electronic Product Reliability and Environmental Testing
关键词
三阶环路滤波器
快速锁相方法
锁相时间
third-order loop filter
fast phase lock methods
phase lock time
