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Manju's avatar
Manju
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5 years ago

IP Filter

Hi I tried to create an IP for a second order low pass filter. However the coefficients of the filter designed is loosing accuracy when i convert the floating values to fixed point arithemetic. I...
pkat's avatar
pkat
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5 years ago

Hi Manju,

I recommend getting the fixed point tool box from Matlab to first analyze the filter response and characteristics with the quantized filter coefficients. You can choose your fractional bits and integer bits allocation in that tool and they make it fairly straightforward. That may help in case your chosen 16 fraction bits are not sufficient for your design.