SmartFusion2 SoC FPGA - Adaptive FIR Filter Demo
where,
e(n) is the error signal
d(n) is desired signal
The filter weights/coefficients are updated using the following equation:
where,
h(n+1) indicates the estimated filter weights
h(n) is present filter weights
µ is the step size factor
Figure 3 •
Input Spectrum of Narrow Band Signal + Wide Band Signal
Figure 4 •
Output Spectrum of Wide Band Signal
e(n)= d(n)- y(n)
h(n+1)=h(n)+µ*e(n)*x(n-)
Narrow band signal spectrum
Amplitude
Wide band signal
Frequency
Amplitude
Wide band signal spectrum
Frequency
DG0441 Demo Guide Revision 7.0
EQ 1
EQ 2
4
Need help?
Do you have a question about the SmartFusion2 and is the answer not in the manual?
Questions and answers