amplitude frequency response using fft
amplitude frequency response using fft
(OP)
hi,
my question is this :
i have an impulse response saved in an array ( [0.25 0.5 0.25] ), which is a LPF coefficents. now i want to use fft command to compute the AFR of this filter , but my question is this how can i change the sampling period , meaning if the sampling period was T when h[n] was taken than how can i plot the same h[n] later but in 2T seconds as the sampling period ?
my question is this :
i have an impulse response saved in an array ( [0.25 0.5 0.25] ), which is a LPF coefficents. now i want to use fft command to compute the AFR of this filter , but my question is this how can i change the sampling period , meaning if the sampling period was T when h[n] was taken than how can i plot the same h[n] later but in 2T seconds as the sampling period ?





RE: amplitude frequency response using fft
Cheers
Greg Locock
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.
RE: amplitude frequency response using fft