The phase- locked loop is one kind of control system which is able to achieve phase automatic lock, to compose frequency and to trace demodulation system.
锁相环路是一种能实现相位自动锁定的控制系统，主要用于频率合成及跟踪解调系统。
2
The orthogonal analog phaselock loop is used to get the timing information of the impulse radio system and the multi-path component separation.
使用正交模拟锁相环路对无载波的脉冲无线电系统实现多径捕获和同步提取。
3
Digital phaselock loop base on fuzzy logical control, which is used to recover carrier in communication system.