The theoretical equality of optical beat frequency and traditional interference phenomenon is performed the result can be applied to varing beat frequency as well as to constant beat frequency which provid a theoretical basis for detection of vibration using heterodyne laser probe .

从而在理论上统一了光 拍频与传统的 干涉现象，这一结果对拍频为常量与拍频随时间变化两种情况均适用，由此可以给出用外差激光探针测振动的理论依据。

The reason to produce beat interference of color subcarrier and sound intercarrier is analyzed with the introduction of considerable items for design and testing methods .

分析了彩色副载波和伴音内载波差 拍 干扰产生的原因、设计应考虑的问题以及测试方法。

Analysis of Optical Beat Interference Noise in Subcarrier Multiplexing System with Multiple Optical Carriers

多光载波接入副载波复用系统中的光 拍 频 干扰噪声分析

Measuring Method for Beat Length of PMF Using Optical Interference Technique

采用光 干涉技术的保偏光纤 拍长测量方法

The measuring method for beat length of polarization maintaining optical fiber ( PMF ) using optical interference technique is introduced briefly and the measurement example is given .

简要介绍了采用光 干涉技术的保偏光纤 拍长测量方法，并给出了测量实例。

The Beat Interference Of Color Subcarrier And Sound Intercarrier

谈谈彩色副载波和伴音内载波的 差 拍 干扰

Optical beat interference ( OBI ) noise in a subcarrier multiplexing system with multiple optical carriers is discussed . The mechanism of OBI its spectrum distribution and carrier-to - interference ratio are analyzed .

讨论了副载波复用系统中多光载波接入情况下的光 拍频 干扰（OBI）噪声问题，对光拍频干扰的产生机理、功率谱分布和载波干扰比进行了分析。