摘要
本文论述了调频通道的线性失真(幅频特性失真)对群频信号(调制信号)的影响——使群频信号产生了幅频特性失真和振幅非线性失真。文中进行了失真的数学推导及失真的机理叙述。在理论分析的基础上,提出了调频通道在不同g—f失真情况下,对群频信号两种失真的作用。
This paper describes the influence of FM channel linear distortion(amplitude-frequency characteristics distortion) on group-frequency signals(modulated signal), which makes the group-frequency signals produce amplitude-frequency charateristics distortion and amplitude nonlinear distortion.Here,the distortion is mathematically analyzed and the principle of distortion is described.Based on the theoretical analysis, the effects of FM channel distortion on these two kinds of distortion of group-frequency signals under various g-f distortion conditions are proposed.
