FIR filter in Matlab : fixed-point

Dmtry K. OP (Company: stc) #3923302 
Hello to all!

I have created FIR filter in Matlab (FDATool), and i have simulated how 
the filter is working.

In the first time i have used floating-point, and i have taken right 
result in output signal. But in the next time i have used fixed-point, 
and it is the result of simulation .

What is it? Errors of quantization? And how i can fix it?
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fdsafdsfds Guest #3923303 
use floating point, relax filter constraints. But the info you provide 
is not sufficient to really help...
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