ztanish said:Can anybody help to find our FIR filter design for random noise removal.
maomun said:Hi,
Try this " help firwiener " and read how to use. This is easy step to filtering noise and no need to design in "fir" function learn it as benchmark, then u should design parameter of "fir1" for filtering by yourself.
can u please giv me the code which u had recived...........i hav a project to doztanish said:Can anybody help to find our FIR filter design for random noise removal.
can u giv me the code which u recived tat is matlab code for fir filter design as i hav aproject to do.please do help mecydi said:What is the type of filter you want? You can use the filter design tool box that comes with matlab (check matlab help).. A simple cammand fir will design the filter for you..
can u giv me the code which u recived tat is matlab code for fir filter design as i hav aproject to do.please do help meUnomano said:What kind of signal do you use? Filter must be matched to your signal.
can u giv me the code which u recived tat is matlab code for fir filter design as i hav aproject to do.please do help meUnomano said:What kind of signal do you use? Filter must be matched to your signal.
can u giv me the code which u recived tat is matlab code for fir filter design as i hav aproject to do.please do help mehelios said:in general cases
Find the noise variance or estimate it
use the "fspecial" to design u r quick gaussian filter
might work easily ..but it depends of the noise distribution...
If u want a real good answer....u r questions must be very specific
armess said:give ur email id i 'll send thcan u giv me the code which u recived tat is matlab code for fir filter design as i hav aproject to do.please do help me
my email id is tejaswi.subash@gmail.come code to u as a .m file.
sprao said:Use FDATOOL in matlab. If you type
>> fdatool
in command window, Fda tool will be opened. There you can select FIR or IIR filter, order of filter and cutoff freq. of filter (either HPF, LPF or BPF). That code will automatically generate .m file for youcan u giv me the code which u recived tat is matlab code for fir filter design as i hav aproject to do.please do help me
my email id is tejaswi.subash@gmail.com.
pranchith said:clear all;
close all;
rp=input('enter the pass band ripple');
rs=input('enter the stop band ripple');
fp=input('enter the pass band ferquency');
fs=input('enter the stop band frequency');
f=input('enter the sampling frequency');
wp=2*fp/f;
ws=2*fs/f;
num=-20*log10(sqrt(rp*rs))-13;
dem=14.6*(fs-fp)/f;
n=ceil(num/dem);
n1=n+1;
if (rem(n,2)~=0);
n1=n;
n=n-1;
end
y=boxcar(n1);
b=fir1(n,wp,y);
[h,o]=freqz(b,1,256);
m=20*log10(abs(h));
subplot(2,2,1);
plot(o/pi,m);