資源簡介
FIR低通濾波器,濾除信號中100HZ以上的高頻噪聲;FIR工頻陷波器,抑制信號中的50HZ工頻干擾;小波去噪:濾除信號中的白噪聲;基線矯正:矯正由肌電干擾等帶來的基線漂移現(xiàn)象。

代碼片段和文件信息
function?Hd?=?band_trap
%BAND_TRAP?Returns?a?discrete-time?filter?object.
%
%?MATLAB?Code
%?Generated?by?MATLAB(R)?7.14?and?the?Signal?Processing?Toolbox?6.17.
%
%?Generated?on:?22-Dec-2015?20:50:14
%
%?FIR?Window?Bandstop?filter?designed?using?the?FIR1?function.
%?All?frequency?values?are?in?Hz.
Fs?=?500;??%?Sampling?Frequency
N????=?60;???????%?Order
Fc1??=?45;???????%?First?Cutoff?Frequency
Fc2??=?55;???????%?Second?Cutoff?Frequency
flag?=?‘scale‘;??%?Sampling?Flag
Beta?=?0.3;??????%?Window?Parameter
%?Create?the?window?vector?for?the?design?algorithm.
win?=?kaiser(N+1?Beta);
%?Calculate?the?coefficients?using?the?FIR1?function.
b??=?fir1(N?[Fc1?Fc2]/(Fs/2)?‘stop‘?win?flag);
Hd?=?dfilt.dffir(b);
%?[EOF]
?屬性????????????大小?????日期????時間???名稱
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?????文件?????478208??2015-12-16?16:12??data11.xls
?????文件?????479232??2015-12-16?16:13??data12.xls
?????文件?????478720??2015-12-16?16:13??data13.xls
?????文件?????477696??2015-12-16?16:13??data14.xls
?????文件?????478720??2015-12-16?16:13??data15.xls
?????文件?????477696??2015-12-16?16:13??data16.xls
?????文件?????476160??2015-12-16?16:13??data17.xls
?????文件?????478208??2015-12-16?16:14??data18.xls
?????文件?????479232??2015-12-16?16:14??data19.xls
?????文件???????6656??2015-12-16?16:11??data20.xls
?????文件??????10952??2015-12-18?14:59??low_pass.fda
?????文件????????668??2015-12-18?14:53??low_pass.m
?????文件????????105??2016-02-29?14:37??readme.txt
?????文件???????5659??2015-12-24?21:57??work.m
?????文件??????10373??2015-12-22?20:51??band_trap.fda
?????文件????????728??2015-12-22?20:50??band_trap.m
?????文件?????478208??2015-12-16?15:50??data1.xls
?????文件?????478720??2015-12-16?15:50??data2.xls
?????文件?????478720??2015-12-16?15:50??data3.xls
?????文件?????479232??2015-12-16?15:51??data4.xls
?????文件?????478720??2015-12-16?15:51??data5.xls
?????文件?????479744??2015-12-16?15:51??data6.xls
?????文件?????479744??2015-12-16?15:52??data7.xls
?????文件?????479232??2015-12-16?15:52??data8.xls
?????文件?????478720??2015-12-16?15:54??data9.xls
?????文件?????478720??2015-12-16?15:54??data10.xls
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