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Beat Interference Analysis between Multi-Position Amplitude-Phase Subcarrier Signals in Direct Photodetection
Optoelectronics, Instrumentation and Data Processing ( IF 0.5 ) Pub Date : 2020-12-25 , DOI: 10.3103/s8756699020030140 V. A. Vardanyan
中文翻译:
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
更新日期:2020-12-25
Optoelectronics, Instrumentation and Data Processing ( IF 0.5 ) Pub Date : 2020-12-25 , DOI: 10.3103/s8756699020030140 V. A. Vardanyan
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:
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。