Abstract

The mathematical model for estimating a standard deviation of beat interference generated during photodetection of subcarrier signals with QPSK and M-QAM modulation formats is considered. The theory and the results of computer simulation are used to derive a formula for calculating the spectral distribution of beat interference depending on the number of signals and used modulation formats.

中文翻译：

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直接光电检测中多位置幅度子载波信号之间的拍频干扰分析

摘要

考虑了一种数学模型，该数学模型用于估计在使用QPSK和M-QAM调制格式对子载波信号进行光检测期间产生的拍频干扰的标准偏差。计算机仿真的理论和结果用于推导一个公式，用于根据信号数量和使用的调制格式来计算拍频干扰的频谱分布。