The shot noise and thermal noise with homodyne demodulation technique is given in this article. And phase noise induced with different time delay is also analyzed.

给出了采用零差解调技术时干涉系统的散粒噪声和热噪声，并且分析了在不同时间延迟情况下的相位噪声。

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In the practical phase generated carrier (PGC) demodulation outputs, the direct current (DC) drift can distort the demodulation results.

在实际的相位生成载波(简称PGC)解调输出中，直流漂移会使解调结果产生失真。

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In the demodulation process of some digital open-loop algorithms, some special phase points will confuse with each other and cause an error output value.

目前已经提出的一些数字开环解调算法在运算过程中时常会出现某些特殊相位点互相混淆的问题，这会导致系统输出错误的解调结果。

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