help me in sampling a bandpass signal...

Started by Nosheen October 8, 2007
how can i generate an impulse train(time domain of period T) in
matlab whose fourier transform gives me the same impulses of period

actually i have generated an impulse train(of limited length) in time
domain, but when i take its FFT, the result gives me a discrete
impulse of high amplitude at t=zero and zero for all other values.

infact m trying to do imulse train sampling with my AM modulated
signal... i want to analyse both time and frequency domain
spectrum..the time domain spectrum of the AM modulated envelope comes
out to b correct, but frequency domain is incorrect as the FFT of
impulse train is incorrect(which matlab results)..

kindly help me out