发射机谐波电平测量方法

Measurement method of transmitter harmonic level

提出了在发射机谐波电平测量中存在的问题和现象,分析了频谱分析仪的工作原理,以混频器的多项式非线性模型为基础,深入研究了频谱分析仪非线性响应对发射机谐波电平测量的影响,给出了影响程度的预测模型,根据谐波电平测量的工程需求,给出了便于工程应用的发射机谐波电平测量方法。

The problems and phenomena in the harmonic level measurement of transmitter are presented. After analyzing the working principle of spectrum analyzer, based on the polynomial nonlinear model of mixer,the influence caused by the nonlinear response of the spectrum analyzer on the harmonic level measurement is studied. The prediction model of the influence degree is given. And according to the engineering requirement of harmonic level measurement,a method of harmonic level measurement for transmitter is presented.