摘要
本文通过对PSK调制信号的瞬时幅度进行DFT运算,检测变换后离散谱线对应的频率值得到符号速率的估计。文章对方法原理和性能进行了详细推导,并通过Matlab仿真和实际短波信号验证了该方法的可行性和有效性。
In this paper, the Discrete Fourier Transform of PSK modulated signal＇ instantaneous amplitude is calculated, and the corresponding frequency value of discrete spectrum line after transform is detected to estimate the symbol rate. The principle and the performance of this method are fetched in detail. Besides,the emulational signals produced by Matlab and a real short-wave signal incepted outside are used to test the effect of method,the result indicated its excellent performance.
出处
《信号处理》
CSCD
北大核心
2008年第2期316-319,共4页
Journal of Signal Processing
关键词
瞬时幅度
符号速率
PSK调制信号
短波
instantaneous amplitude
symbol rate
PSK modulated signal
shortwave
作者简介
张晓勇，男，1982年生，硕士研究生，主要研究方向为短波调制识别、信号处理。
