How to obtain the sinc^5 filter coefficients

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Blaine Bockholt
Blaine Bockholt 2016-1-6
回答： Star Strider 2016-1-6
I have an analog-digital converter with a frequency response in the following form: {sin(256*pi*M*f/f_c)/(M*sin(256*pi*f.f_c))}^5. It is a sinc^5 filter where M is the decimation factor. I am trying to obtain the filter coefficients and I am not sure how to do this. Any help would be appreciated. Thanks.

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回答（1 个）

Star Strider
Star Strider 2016-1-6
Guessing here. If you have a frequency response you can evaluate by plugging in the appropriate variables, see if you can use the Signal Processing Toolbox invfreqz to get the filter coefficients. That would be my first approach.

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