MOVING AVERAGE FILTER MATLAB PROGRAMS

MOVING AVERAGE FILTER

 

 

t=0:.01:1;

f=5;

y=sin(2*pi*f*t);

%Generation of random signal

g=0.5*randn(size(t));

z=g+y;

N=10; %order required

b=1/N*(ones(1,N));

x=filter(b,1,z); %filters noice

subplot(3,1,1);

plot(t,y);

ylabel('pure signal');

subplot(3,1,2);

plot(t,z);

ylabel('noise buried');

subplot(3,1,3);

plot(t,x);

ylabel('filtered signal');

xlabel('Time in seconds');