[USRP-users] Help in frequency shifting with USRP
Marcus D Leech
patchvonbraun at gmail.com
Mon Nov 11 09:20:31 EST 2019
This is more of a generic DSP question. It’s the sort of thing that folks on the discuss-gnuradio list do all the time.
Sent from my iPhone
> On Nov 11, 2019, at 8:35 AM, Snehasish Kar via USRP-users <usrp-users at lists.ettus.com> wrote:
> I tried capturing GSM 900 band at a sample rate of 25e6 centered at 947.4e6 and stored in a file. Then on the captured data I tried shifting 935.2e6 to the center and perform a low pass filter samples out followed by a re-sampler to get 200e3 samples out. But I think the spectrum shifting is not wroking as it should be I am following the following link for spectrum shifting https://dsp.stackexchange.com/a/1993. I am using twinrx with 10gig sfp, UHD_184.108.40.206-0-unknown, ubuntu 16.04 and liquid dsp for signal processing.
> fft - How to shift the frequency spectrum? - Signal Processing Stack Exchange
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> Please let me know, where I might be going wrong.
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