A sampling frequency of 2000, a digital signal composed of 50Hz, 120Hz, 200Hz sine and noise signals, is generated to filter out the frequency of 150Hz>f>100Hz and to calculate and display the original data waveforms and the power spectral density before and after the filtering.

Filename	Size	Update
xinhaocaiyang\xinhaocaiyang.m	654	2018-04-08
xinhaocaiyang\信号采样.doc	28672	2018-04-08
xinhaocaiyang	0	2018-04-08

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