Content-type: text/html Manpage of uvfft

uvfft

Section: User Commands (1)
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NAME

uvfft - Fourier transform a sequence of selected uv-data.  

PERSON RESPONSIBLE

mchw  

CATEGORIES

uv analysis  

DESCRIPTION

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.  

PARAMETERS

vis
The input UV dataset name. No default.
select
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.
line
Standard linetype of data to be tranformed, in the form:
  type,nchan,start,width,step
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.
size
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.
log
The list output file name. The default is the terminal.
device
standard PGPLOT device, e.g. /xw
delay
Step size for stepped delay center. FFT is bandpass function. Default=0 Delay center not stepped. FFT is fringe frequency spectrum.
 

PERSON RESPONSIBLE

options


 

Index

NAME
PERSON RESPONSIBLE
CATEGORIES
DESCRIPTION
PARAMETERS
PERSON RESPONSIBLE

This document was created by man2html, using the manual pages.
Time: 18:35:38 GMT, July 05, 2011