According to transfer functions of the loop filter and the single phase locked loop system, it figures out the loop filters parameters, and introduces the selection of loop bandwidth.
根据环路滤波器传递函数以及单环锁相系统的传递函数，计算出环路滤波器的各个参数，并介绍了环路带宽的选择。
A fast all digital phase-locked loop with automatic modulus control is presented.
提出了一种具有自动变模控制的快速全数字锁相环。
Phase-locked loop (PLL) has been applied in many fields.
锁相环在很多领域都得到了广泛应用。
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