![]() ![]() ![]() Window based Linear Phase FIR filter Calling Sequence =wfir(ftype,forder,cfreq,wtype,fpar) Arguments ftype:’lp’,’hp’,’bp’,’sb’ wtype:’re’,’tr’,’hm’,’hn’,’kr’,’ch’ cfreq:2-vector of cutoff frequencies fpar:2-vector of window parameters wft:time domain filter coefficients wfm:frequency domain filter response on the grid fr Window based Linear Phase FIR filter Calling Sequence =wfir(ftype,forder,cfreq,wtype,fpar) Arguments ftype:’lp’,’hp’,’bp’,’sb’ wtype:’re’,’tr’,’hm’,’hn’,’kr’,’ch’ cfreq:2-vector of cutoff frequencies fpar:2-vector of window parameters wft:time domain filter coefficients Window based Linear Phase FIR filter Calling Sequence =wfir(ftype,forder,cfreq,wtype,fpar) Arguments ftype:’lp’,’hp’,’bp’,’sb’ wtype:’re’,’tr’,’hm’,’hn’,’kr’,’ch’ cfreq:2-vector of cutoff frequencies fpar:2-vector of window parameters Window based Linear Phase FIR filter Calling Sequence =wfir(ftype,forder,cfreq,wtype,fpar) Arguments ftype:’lp’,’hp’,’bp’,’sb’ wtype:’re’,’tr’,’hm’,’hn’,’kr’,’ch’ cfreq:2-vector of cutoff frequencies ![]() Window based Linear Phase FIR filter Calling Sequence =wfir(ftype,forder,cfreq,wtype,fpar) Arguments ftype:’lp’,’hp’,’bp’,’sb’ wtype:’re’,’tr’,’hm’,’hn’,’kr’,’ch’ Window based Linear Phase FIR filter Calling Sequence =wfir(ftype,forder,cfreq,wtype,fpar) Arguments ftype:’lp’,’hp’,’bp’,’sb’ win=window(’kr’,n,alpha) Chebyshev Window. In this slide i will be describing different windowing techniques.This can be performed by different window functions with window length by using the in-built command window(). Filter design by different in-built functions available in scilab. This presentation is being divided into following parts: Different windowing techniques. ![]() In this presentation i will show how differnt types of filters can be designed using scilab. What is a filter? A filter is a device or process that removes some unwanted component or feature from a signal. Manas Das Indian Institute of Technology, Bombay March 1, 2012 ![]()
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