The principle of phase tracking of the system with source-contained homodyne detection method is discussed.
介绍了基于模间干涉的全光纤电压传感器结构及原理,利用两个光电二极管探测双模光纤输出的相干模斑光强,通过模斑光强的变化测量待测电压引起的模间相位差变化,讨论了含源零差检测法的相位跟踪原理,给出了相位检测系统及电路,仿真和实验结果表明此设计方案能达到相位跟踪的目的。
In order to solve this problem, an adaptive differentially coherent detection(ADCD) algorithm and its phase compensation were proposed.
针对这一问题,提出了一种自适应差分相干检测算法及其相位补偿方法。