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。
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。
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。
Phase errors is introduced in echo demodulation process because of the frequency synchronization error, and then, the final focus result will be deteriorated.
在接收端解调过程中，该频率同步误差会引入一定的相位误差，进而影响下一步的成像处理。
We have mainly researched two FM signal demodulation techniques called Frequency Spectrum Separation and Phase Lock Loop in the first part.
一次解调中研究了频谱分离法和锁相法两种实现鉴频的技术。
The paper presents an signal demodulation method used in EMT based on phase feedback search.
提出适用于EMT的基于相位反馈搜索的信号解调方法。
Two kinds of signal processing methods for heterodyne interferometer, phase locked frequency demodulation and combinatorial frequency demodulation are presented in this paper.
介绍了两种激光外差干涉信号的处理方法锁相频率解调法及组合频率解调法。
Several demodulation schemes for split phase coded PSK signals are described in this paper.
本文叙述了几种分相码移相信号的解调方案。
The outputs were in the form of impulse and phase difference while professional phase demodulation, period and pulse width measurement module focus on FPGA.
此外，以FPGA为核心构建了专用的鉴相、周期及相位脉宽测量模块。
The effect of in-phase and quadrature channel errors on digital quadrature demodulation is analyzed and an optimal digital filter design method is selected.
通过分析同相、正交通道误差对正交解调性能的影响，确定了滤波器最佳设计准则。
The phase-lock technique is widely used in many fields, such as modulation and demodulation circuit and frequency synthesizer circuit.
锁相技术在调制和解调、频率合成电路等很多领域应用极其广泛。
Based on the phase demodulation theory, the function of optic fiber sensor int he system was described in this paper.
根据鉴相的理论基础，该文阐述了光纤传感器在动态定距测量系统中的功能；
Based on the phase demodulation theory, the function of optic fiber sensor int he system was described in this paper.
根据鉴相的理论基础，该文阐述了光纤传感器在动态定距测量系统中的功能；
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