并且存在着最佳反馈环路传递函数，使得其强度调制性能达到最佳。
There exists an optimal transfer function for the feedback loop which can optimize the performance of intensity modulation.
在电路设计上，根据环路传递函数的特征，利用简单的电压模式控制和基本的PI补偿器，保证了宽带环路控制的稳定性。
According to the characteristic of the control loop, simple voltage control mode and basic PI compensation are employed to ensure the stability of the converter.
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。
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.
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