squash08
Newbie level 2
Hi,
I have a s21 complex frequency response. And it has 3001 frequency points to cover 28.7MHz(-14350000,14350000), each step is about 9566Hz. currently I want to convert the s21 response to digital spectrum with each fft bin size to be 30khz and sampling frequency to be 30.72MHz. I am thinking of interpolation of the s21 to higher frequency and then just purely decimate to 30.72MHz with purely decimation in frequency. But looks have to interpolate to a very high frequency due to 28.7MHz and 30.72mhz are not integer multiples, not sure if this is a correct way to do it. Can some one give me any suggestions? I really appreciate any suggestions.
Thanks,
squash
I have a s21 complex frequency response. And it has 3001 frequency points to cover 28.7MHz(-14350000,14350000), each step is about 9566Hz. currently I want to convert the s21 response to digital spectrum with each fft bin size to be 30khz and sampling frequency to be 30.72MHz. I am thinking of interpolation of the s21 to higher frequency and then just purely decimate to 30.72MHz with purely decimation in frequency. But looks have to interpolate to a very high frequency due to 28.7MHz and 30.72mhz are not integer multiples, not sure if this is a correct way to do it. Can some one give me any suggestions? I really appreciate any suggestions.
Thanks,
squash