Changes between Version 16 and Version 17 of Changes/invert


Ignore:
Timestamp:
03/13/07 11:45:47 (17 years ago)
Author:
MarkWieringa
Comment:

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  • Changes/invert

    v16 v17  
    66 ||[wiki:Changes/invert#VisibilityWeights Visibility Weights]          || easy       || moderate ||     6     ||  5d  ||
    77 ||[wiki:Changes/invert#PrimaryBeamModel Primary Beam] || moderate || some|| 10|| 2-5d||
     8 ||[wiki:Changes/invert#MultiFrequencySynthesis MFS] || moderate || some|| 11|| 15d||
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    1516== Primary Beam ==
    1617Check and, if necessary, correct usage of primary beam models in invert. Make sure variation with frequency is taken into account for mosaic case. Amount of time needed will increase if current code is not handling this correctly. Should check linmos, mossdi and mosmem as well, hopefully they share the primary beam code...
    17 
     18== Multi Frequency Synthesis ==
     19Add a spectral curvature term (2nd order term) to MFS imaging. At present the average flux and a spectral index are handled. For 2-4 GHz bandwidth we may require higher order terms to model the sources in a typical field, especially at the lower frequencies. Some research is required to determine whether this is indeed a limiting factor in high dynamic range imaging and how much improvement can be expected.
    1820
    1921[wiki:Changes Changes Home][[BR]]