在信号处理中经常要把某些单频(窄带)干扰信号去除，例如求系统采集信号中的把工频信号滤除。实际上有一个很好的方法，便是使用陷波器。-Signal processing often take some single frequency (narrowband) interference signal removal, for example, demand in the system acquisition signal-frequency signal filtering. In fact, a

利用最小二乘法从加性白噪声干扰的宽带有用信号中除去窄带干扰 -Additive white noise removing narrowband interference in broadband useful signal

1.对信源进行AM，DSB,SSB调制 2.信道中各自加入进过带通滤波器后的窄带高斯白噪声,解调每个信号，并画出滤除前后，双边带信号和单边带信号的频谱。-1. Letter source AM, DSB, SSB modulation 2. Add to each channel through the band pass filter into a narrow band Gaussian white noise, each signal demodulated, filtered a