What is the MATLAB function for FILTER in direct-form I?

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vinicius lanziotti
vinicius lanziotti 2019-6-14
编辑： Image Analyst 2019-6-17
I need of the code of this function, if it exists.
I just know about the function 'filter', but this function was implemented in direct-form II transposed and I need of the 'filter' that was implemented in direct-form I.
Thanks.

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回答（1 个）

Walter Roberson
Walter Roberson 2019-6-14
编辑：Image Analyst 2019-6-17
https://www.mathworks.com/help/signal/ref/dfilt.df1.html
edit(which('dfilt.df1'))
Will show you the exact code that is used.

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