摘要
利用正弦信号的特殊性质,在信号未知的情况下通过多重自相关运算可检测出埋没于噪声中的微弱正弦信号.文中推导了算法的实现过程,并讨论了多重自相关法在白噪声背景下、有色噪声背景下等情况下的检测效果,并给出仿真结果.
Considering the sinusoidal signal has a particular autocorrelation trait, it is possible to detect the unknown weak signal in power noise. We adopt the algorithm and multiple statuses are studied, when sine signal are disturbed by white noise or colored noise. Finally, the paper offers a simulation results.
出处
《小型微型计算机系统》
CSCD
北大核心
2007年第3期566-568,共3页
Journal of Chinese Computer Systems
基金
河北省科技厅科技攻关项目(052035187D-5)资助
关键词
自相关
微弱信号
有色噪声
auto eorrelation
weak signal
colored noise
