Phase correction

GNU Radio
1

I’m looking into updating some of my interferometer code to work with
newer hardware, like DBS_RX2, which will have unpredictable
phase offsets between LOs.

I played with the fractional interpolator a little while ago, to use for
phase-correcting one half of the interferometer. Is there a better
method to use?

2

On 07/27/2011 07:58 AM, Marcus D. Leech wrote:

I’m looking into updating some of my interferometer code to work with
newer hardware, like DBS_RX2, which will have unpredictable
phase offsets between LOs.

I played with the fractional interpolator a little while ago, to use for
phase-correcting one half of the interferometer. Is there a better
method to use?

You don’t need to do fractional interpolation. Just phase rotation
(complex multiply).

Matt

3

On 27/07/2011 3:03 PM, Matt E. wrote:

You don’t need to do fractional interpolation. Just phase rotation
(complex multiply). Matt
Brrrzzzt! Yup… Doh!