A Novel PCM/FM Demodulation Method Using DSTFT Analysis

被引：0

作者：

Zhang, Lanying ^{[1
]}

Yuan, Sijie ^{[1
]}

Hou, Xiaomin ^{[1
]}

机构：

[1] Acad Equipment Command & Technol, TT&C Res Ctr, Beijing 101416, Peoples R China

来源：

ICSP: 2008 9TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING, VOLS 1-5, PROCEEDINGS | 2008年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper proposes a novel pulse code modulation /frequency modulation (PCM/FM demodulation method using an efficient recursive algorithm to compute discrete short-time Fourier transform (DSTFT) of the signal. In this approach, instead of excluding the old samples, their importance is diminished by using all-pole moving-windows. The DSTFT-based PCM/FM demodulation method is simple because it expands the signal in a time-frequency plane and demodulates it only by searching the instantaneous spectral peaks without complicated carrier-recovery circuit. The computation is reduced and the bit error rate(BER) is degraded. Its effectiveness is illustrated by the simulation and test results.

引用

页码：1776 / 1780

页数：5

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