影响频谱分析仪频率分辨率的因素

摘要

频率分辨率是频谱分析仪的一项重要技术指标,在介绍频谱分析仪原理的基础上,对频谱分析仪的分辨率带宽、频率选择性、本振残余调频和本振相位噪声参数进行了解析,从而使读者掌握各参数与频谱分析仪频率分辨率之间的关系,在选购频谱仪和实际测量时合理地考虑以上参数.%The frequency resolution is an important technical parameter of the spectrum analyzer. On the basis oF introducing the spectrum analyzer, the resolution handwidth, the frequency selectivity, the local oscillation residual FM and the local oscillation phase noise are analyzed. Thus the relation between the various parameters and the frequency resolution of spectrum analyzer can be mastered The parameters when selecting the spectrometer and measuring in practice should be considered.