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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
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14 years ago

have you made sure your data is fixed to the correct number of bits (remember floating point is no appropriate for HDL)? the HDL output looks like it's clipping.