摘要
Abstract
According to the demand of high frequency resolution and real time detection of Tramroad FSK signal,the spectrum energy distribution of the France UM71 FSK signal,taken as an example,was analyzed.The real time detection approach of carrier and modulating frequency of FSK signal was proposed based on under-rate sampling,band-pass filter and spectrum correction,following by the concrete detection steps.At last,the simulation result of one example illustrated the effectiveness of proposed approach.关键词
FSK信号/欠采样/带通滤波/频率分辨率/频谱校正Key words
FSK signal/under-rate sampling/band-pass filter/frequency resolution/spectrum correction分类
信息技术与安全科学
