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我用的是Python版本filtfilt是scipy.signal.filtfilt函数,然后我发现输出和你的对应不上,然后我就从网上搜索看到了Matlab和Python在滤波过程中的差异,会在函数计算中差0.3个相位差,所以在Python函数中 output = signal.filtfilt(b,a,x,padlen=3*(max(len(b),len(a))-1) 就可以得到一样的输出了。Matlab中不支持更改padlen(参考http://dong.sh/posts/differencefiltfiltfunction/)
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我用的是Python版本filtfilt是scipy.signal.filtfilt函数,然后我发现输出和你的对应不上,然后我就从网上搜索看到了Matlab和Python在滤波过程中的差异,会在函数计算中差0.3个相位差,所以在Python函数中 output = signal.filtfilt(b,a,x,padlen=3*(max(len(b),len(a))-1)
就可以得到一样的输出了。Matlab中不支持更改padlen(参考http://dong.sh/posts/differencefiltfiltfunction/)
The text was updated successfully, but these errors were encountered: