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Basic Information on uvfft
Purpose: Fourier transform a sequence of selected uv-data.
Categories: uv analysis
UVFFT takes a 1-D Fourier transform of a uv-data sequence.
If the sequence is a time series, then the FFT is a fringe
rate spectrum. If the sequence steps the delay center, then
the FFT is a bandpass.
The input UV dataset name. No default.
This selects the data to be processed, using the standard uvselect
format. Default is all data. Selecting more than one baseline
does not make much sense.
Standard linetype of data to be tranformed, in the form:
where type can be `channel' `wide' or `velocity'.
The default is wide,2,1,1,1. The maximum number of channels
which can be processed is 8.
The length of the sequence for the Fourier transform.
uv-data points in excess of the size of the transform are omitted.
Must be a power of 2. The default is 128.
The list output file name. The default is the terminal.
standard PGPLOT device, e.g. /xw
Step size for stepped delay center. FFT is bandpass function.
Default=0 Delay center not stepped. FFT is fringe frequency spectrum.
test - substitute test functions for data into Fourier transform.
Generated by email@example.com on 21 Jun 2016