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RadioAstron Closed Loop for DiFX

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    Combined revision comparison

    Comparing version 11:40, 9 May 2019 by jwagner with version 12:58, 16 May 2019 by jwagner.

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    16May2019: Fixed the delay jumps introduced by merging DiFX delay (0th order) with ASC coeffs (1st..Nth order) and an optional user delta-rate. Now K-band closed loop fringe phase is much improved throughout the scan.

    Structure in fringe phase vs time shows that the ASC poly set is indeed the initial poly set and needs iterative refinement, but currently unclear how to best to this. PIMA can fit delay, rate, acceleration, but: a) how to segment a scan into 60s pieces? b) how to fit higher-order terms?

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    Version from 11:40, 9 May 2019

    This revision modified by jwagner (Ban)

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    Version as of 12:58, 16 May 2019

    This revision modified by jwagner (Ban)

    ...

    16May2019: Fixed the delay jumps introduced by merging DiFX delay (0th order) with ASC coeffs (1st..Nth order) and an optional user delta-rate. Now K-band closed loop fringe phase is much improved throughout the scan.

    Structure in fringe phase vs time shows that the ASC poly set is indeed the initial poly set and needs iterative refinement, but currently unclear how to best to this. PIMA can fit delay, rate, acceleration, but: a) how to segment a scan into 60s pieces? b) how to fit higher-order terms?

    ...