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Altera_Forum's avatar
Altera_Forum
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14 years ago

Why filter output is like this ?

Hi . Details of FIR filter FIR rectangular Window BPF Order 3 No. of coefficients = 4 Fc1 = 1 Hz Fc2 = 24 Hz Fs = 100 Hz figure 1 (https://picasaweb.google.com/lh/photo/twkb1ndv7...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

try pass through for testing i.e. set your coeffs as [1 0 0 0]

and check you get your input back at output. this test will tell you if your filter scaling is right for this simple case.