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dynamicsched.setphasecalinfo - Function



Package synthesis
Module simulator
Tool dynamicsched


Provide parameters which determine how well the phase calibration works


Synopsis
setphasecalinfo(phasecalmethod, baselevel, fraclevel, windvelocity, timescale)


Description
The residual phase errors after calibration by the relevant method are a topic of debate, especially for radiometric calibration. For radiometric phase calibration, we assume the residual phase errors $ \sigma_{\phi}^{}$ are given by

$\displaystyle \sigma_{\phi}^{}$ = $\displaystyle \sqrt{b^2 + f^2 \cdot D_{\phi}( v t ) }$, (1.35)

where b is some base error level related to the radiometer sensitivity, f is the fraction of atmospheric phase errors which are not corrected, D$\scriptstyle \phi$ is the phase structure function, v is the wind velocity, and t is a time scale for the atmospheric phase errors.



Arguments

phasecalmethod Phasecal method to use (only RADIOMETRIC works at the moment
Allowed: 'RADIOMETRIC'|'FASTSWITCH'
Default: 'RADIOMETRIC'
baselevel Basic accuracy of the phase correction (in pathlength)
Allowed: Quantity
Default: '50um'
fraclevel Fraction of the atmospheric phase errors which are not removed
Allowed: Float
Default: 0.10
windvelocity Velocity of winds aloft
Allowed: Quantity
Default: '10m/s'
timescale Timescale of the atmospheric phase errors
Allowed: Quantity
Default: '30s'


Returns
Bool


Example
mysched.setphasecalinfo(phasecalmethod='RADIOMETRIC', 
baselevel='50um', fraclevel=0.1,  timescale='20s')





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