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NRAO Home > CASA > CASA Toolkit Reference Manual |
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simulator.setvp - Function
2.4.1 Set the voltage pattern model for subsequent processing
Description
Set the voltage pattern model (and hence, the primary beam) used for a
Telecope. There are currently two ways to set the voltage pattern: by using the
extensive list of defaults which the system knows about, or by creating a
voltage pattern description with the vpmanager. The default voltage patterns
include both a high and a low frequency VP for the WSRT, a VP for each
observing band at the AT, several VP’s for the VLA, including the
approrpiate beam squint for each observing band, and Gaussian for the BIMA
dishes. If you are simulating a telescope which doesn’t yet exist, you will need
to supply a model voltage pattern using the vpmanager.
Arguments
Inputs |
| ||
dovp |
| Multiply by the voltage pattern (ie, primary beam) when
simulating
| |
| allowed: | bool | |
| Default: | true |
|
usedefaultvp |
| Look up the default VP for this telescope and frequency?
| |
| allowed: | bool | |
| Default: | true |
|
vptable |
| If usedefaultvp is false, provide a VP Table made with
vpmanager
| |
| allowed: | string |
|
| Default: | Table |
|
dosquint |
| Activate the beam squint in the VP model
| |
| allowed: | bool |
|
| Default: | true |
|
parangleinc |
| Parallactice angle increment for squint application
| |
| allowed: | any |
|
| Default: | variant 360deg |
|
skyposthreshold |
| Position threshold on the sky for feed arrays ??
| |
| allowed: | any |
|
| Default: | variant 180deg |
|
pblimit |
| Primary beam limit to use in feed arrays ?
| |
| allowed: | double |
|
| Default: | 1.0e-2 |
|
bool
Example
sm.setvp(dovp=T, usedefaultvp=F, vptable=’MyAlternateVLAPBModel.TAB’, dosquint=F);
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