I want to model stair wave y=2 as 0<x<1
y=1 as 1<x<2
y=0 as 2<x<3
through it fourior transform from sinc pulse
We know 
As 
So
so fourier transform of stair wave y=2 as 0<x<1
y=1 as 1<x<2
y=0 as 2<x<3
as
so I inverse fourier transform U(f)
that would my assumed stair wave pulse.
I attach my mat and fig file from matlab student version5.3 for window. But it didnot do what I want.
x=0:0.01:3;
EDU»
y=ifft((sinc(x)*(2*exp(-i*pi*x)+exp(-i*3*pi*x)));
???
)+exp(-i*3*pi*x)));
|
Improper function reference. A "," or ")" is expected.
EDU»
y=ifft((sinc(x)*(2*exp(-i*pi*x)+exp(-i*3*pi*x))));
??? Error using ==>
*
Inner matrix dimensions must agree.
EDU»
y=ifft((sinc(x).*(2*exp(-i*pi*x)+exp(-i*3*pi*x))));
EDU»
plot(x,y)
Warning: Imaginary parts of complex X and/or Y arguments
ignored.
Where I may go wrong?
Need your tech help and thanks in advance
Eric(address@hidden)
