Help with FIR highpass filters
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David Jefferson
on 14 Nov 2016
Answered: Star Strider
on 14 Nov 2016
The goal of the assignment is to make a FIR highpass filter in matlab for butterworth, chebyshev type 1, elliptic. With this assignment they told me to do Window-based FIR filter design for this using the FIR1 function. I can understand how you could type to specify if it is a high pass b = fir1(n,Wn,ftype), and what window type like hammering, but I can not figure out how to specify which type of filter its suppose to be like if it was butterworth. So could you please help me figure that part out and maybe show a example for me I appreaciate it thanks!
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Star Strider
on 14 Nov 2016
I don’t know what the constraints of your assignment are, but I would use the designfilt function. It’s certainly the most straightforward approach for complicated filters. The documentation for designfilt will tell you everything you need to know about its use.
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