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Decimation factor with RESAMPLE

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Jose Manuel
Jose Manuel 2014-2-12
回答： Wayne King 2014-2-12
In the DECIMATE's help ( http://www.mathworks.es/es/help/signal/ref/decimate.html ) says that:
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Note: For better results when r is greater than 13, you should break r into its factors and call decimate several times.
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I prefer to use RESAMPLE because I think it's better than DECIMATE. But in RESAMPLE's help
( http://www.mathworks.es/es/help/signal/ref/resample.html ) says nothing about if decimation factor must be less than 13 for better results.
So, can I use decimation factor with RESAMPLE greater than 13 and get good results?
Thank you,
José Manuel

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回答（1 个）

Wayne King
Wayne King 2014-2-12
resample uses upfirdn() under the hood, which is ultimately a MEX file implementation of a polyphase filtering of the input, so I believe you will find resample more efficient for larger factors.

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