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: http://www.atnf.csiro.au/computing/software/miriad/doc/uvimage.html
Дата изменения: Unknown Дата индексирования: Sun Apr 10 22:40:18 2016 Кодировка: Поисковые слова: внешние планеты |
Task: uvimage Purpose: Create a 3D image from uvdata Categories: image conversion, analysis. UVIMAGE makes a Miriad image datacube of the uvdata in a Channel - Baseline - Time order. Missing Baselines are replaced with 0s, Missing channels cause a fatal error. Flagged data are shown as 0, even if underlying values are non-0 This program expects the data to be homogeneous. Related tasks: TVFLAG - good for inspection and flagging, but only works in 8bit displays UVAVER - use this to cut down the number of times VARMAP - image maps of uv-variables Key: vis The input uv-dataset name. No default. Key: select This selects which visibilities to be used. Default uses all the data. See the Users Guide for information about how to specify uv data selection. e.g. 'select=ant(1)(5),-time(00:00,01:09)' Key: line Linetype of the data in the format line,nchan,start,width,step line can be `channel', `wide' or `velocity'. Default is channel,0,1,1,1, which uses all the spectral channels. Key: view Visibility 'amplitude', 'phase', 'real', 'imaginary' No calibration is applied by UVIMAGE. Default: amplitude Key: out Output image. If no output image give, the visibility data will be scanned and a summary is given if there are integrations with missing (or extra) baselines and missing (or extra) channels. Currently the image cube is poorly labeled as CHANNEL, BASELINE, TIME with no real meaningful coordinates. See mode= below for other orderings of axes. Key: mode This controls in what order the cube is written 1: CHANNEL-BASELINE-TIME (default) 2: TIME-CHANNEL-BASELINE 3: TIME-BASELINE-CHANNEL Key: options time : make time axis linear, leaving gaps where there is no data, the default is to leave no gaps. freq : make frequency axis instead of channel axis Key: ignore Should flags be ignored? If true, the underlying data values are shown, even if non-zero. Default: false