DFT Computation in Matlab

[markwilest]

Hi,

I need to compute the 128-pt DFT for y[n] = -0.9 * y[n-2] + δ[n] and for w[n] = (0.92)^-n * y[n] using Matlab

Thanks,

Mark

 

[rsrinivas]

use fft function

 

[amriths04]

initialize y and the impulse(delta) function. then take fft(sig_name,128);

AMRITH.S.

Hi,

I need to compute the 128-pt DFT for y[n] = -0.9 * y[n-2] + δ[n] and for w[n] = (0.92)^-n * y[n] using Matlab

Thanks,

Mark