Simple digital filter design 1. design of Butterworth digital filter by impulse response invariance 2. design of Chebyshev digital filter by bilinear transform 3. the Butterworth digital filter is designed by the bilinear transformation method, and the direct structure is converted into a cascade structure 5. design bandstop filter 6. design of FIR digital low pass filter by window function design 7. the FIR digital low pass filter is designed by using the frequency sampling design method. 8. the content of creative training and expansion (1) design IIR or FIR filter to filter the noise of electrocardiogram signal according to the characteristics of ECG signal (2) the IIR filter or FIR filter is designed to filter the speech signal.

Filename	Size	Update
3
3\Untitled2.m	13	2017-12-06
3\Untitled3.m	2058	2017-12-14
3\afd_butt.m	468	2017-12-03
3\dir2cas.m	646	2017-12-13
3\freqz_m.m	422	2017-12-03
3\ideal.m	91	2017-12-04
3\imp_invr.m	315	2017-12-03
3\shiyan61.m	1037	2017-12-06
3\t1.m	421	2017-12-03
3\t14.m	468	2017-12-13
3\t1a.m	1308	2017-12-13
3\t1b.m	419	2017-12-04
3\t2.m	1468	2017-12-13
3\t3.m	971	2017-12-16
3\t5.m	985	2017-12-14
3\t6.m	2304	2017-12-16
3\t7.m	2189	2017-12-18
3\t81.m	990	2017-12-13
3\t82.m	942	2017-12-18
3\ta.m	164	2017-12-06
3\u_buttap.m	403	2017-12-03
3\u_chb1ap.m	370	2017-12-03
3\琵琶语.wav	1587714	2017-12-18

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