Fractional delay filter

[zhiha]

Is there currently a library function in Sionna that can do the fractional delay of the signal?

I know some method like FFT can simply do that, but It would be even better if Sionna already supports the Farrow Method.

^_^

[jhoydis]

Hi,

There is no function that does this out-of-the-box. Wouldn't it be sufficient to define a custom filter corresponding to a time-shifted (truncated) sinc filter?

[nbecker]

fft is one approach. Another relatively low-complexity approach is Lagrange interpolator.

…

On Mon, May 15, 2023 at 2:51 PM Jakob Hoydis ***@***.***> wrote: Hi, There is no function that does this out-of-the-box. Wouldn't it be sufficient to define a custom filter <https://nvlabs.github.io/sionna/api/signal.html#customfilter> corresponding to a time-shifted (truncated) sinc filter? — Reply to this email directly, view it on GitHub <#130 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAA4VUCUBTLLCLRJLH36R6DXGJ3KTANCNFSM6AAAAAAX5PWOCE> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

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[jhoydis]

The FFT-based solution could make for a nice contribution. We would be happy to review a pull request.