Changes between Version 43 and Version 44 of Changes/atlod


Ignore:
Timestamp:
03/06/07 14:02:56 (17 years ago)
Author:
mci156
Comment:

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  • Changes/atlod

    v43 v44  
    3939 ATLOD applies the XYPhase correction, but retains the XYPhase(f) spectrum in the output.
    4040 Nothing else (except [http://www.atnf.csiro.au/computing/software/miriad/doc/atxy.html atxy] and
    41  [http://www.atnf.csiro.au/computing/software/miriad/doc/varplt.html varplt] ) uses them.
    42  So we can compute the corrections, apply them and drop the XYPhase information, during ATLOD?
    43  May need to order the RPFITS data stream so that autocorrelations come before cross-correlations
    44  (and after SYSCAL records), so that the corrections for the cross-correlation can be computed
    45  before reaching the cross-correlations.
    46  We will need to carry Tsys info along but may be able to do it more compactly than storing the autocorrelations themselves.[[BR]]
     41 [http://www.atnf.csiro.au/computing/software/miriad/doc/varplt.html varplt] ) uses them.[[BR]]
    4742 [[BR]]
    4843 Research needed: The phase values computed on a per channel basis will be noisy, and applying them will just introduce noise.
    4944 We need to understand how much smoothing across frequency will be needed.
    50  Need to do some experiments to understand the sequence of events in reading in a file.
    51 
     45 Need to do some experiments to understand the sequence of events in reading in a file.[[BR]]
     46 Research needed: Does ATLOD work in a streaming mode?
    5247== Data Size Limits ==
    5348 Research needed: check for size limits on the data dimensions - number of windows, channels, etc