数字通信系统信噪比参数的测量方法比较

Digital Communication System's SNR Parameter Measurement Method Comparison

针对数字通信系统中常见的信噪比参数E b/N0,本文从功率测量、功率谱密度测量及矢量分析三个角度出发,分别给出了该参数的测量原理与方法,并通过具体测量实验比较了三种测量方法的各优缺点,对于该参数的实际工程测量具有一定指导意义。

This article discusses three measurement methods of the digital communication system＇ s SNR parameter, namely power measurement, power spectral density measurements and vector analysis, describe the measurement principles and methods of SNR, and through specific measurement experiment compared above measurement＇ s advantages and disadvantages, measurement methods discussed in this article has guiding significance for engineering applications.