正弦信号干扰下低通带限型频谱信号的采样

提出了正弦信号干扰下的带限低通信号的采样方法 ,克服了 Shannon采样定理对采样频率要求过高的缺点。当低频有效信号的最高频率为 fh,正弦干扰信号的频率为 f0 时 ,低频有效信号频谱不出现频谱混叠的采样频率为 f0 +fh N+1

Sampling Theorem for Band-limited Low-pass Signal with Disturbance from a Sine Signal

This paper proposed a sampling theorem for band-limited signal with disturbance from a sine function. It can recovery the available signal under low sampling rate. When the upper limit of band-limited low-pass available signal frequency is f h and the frequency point of the disturbance is f 0, the sampling frequency, with which the spectrum of available signal do not present frequency alias, is f 0+f hN+1