How does filter function works?
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Hi,
I used edit filter to see how does it work but I did not find any relative information. I used FIR filter filter(b,1,signal). I need to know how does it work.
Thankss
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Daniel Shub
el 13 de Dic. de 2011
See this filter documentation
doc filter
as well as this question: http://www.mathworks.com/matlabcentral/answers/9900-use-filter-constants-to-hard-code-filter
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Daniel Shub
el 6 de En. de 2012
I am guessing you want to leave it out. The zi/zf input/outputs are most useful for when you are filtering in blocks. I believe that if you leave zi out, MATLAB assumes that the input has been zero for a very long time.
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