pupilrms: Wavefront statistics
In mlpeck/zernike: Zernike Polynomials
pupilrms R Documentation
Wavefront statistics
Description
Compute basic statistics of wavefronts stored in "pupil"
objects.
Usage
pupilrms(pupil)
pupilpv(pupil)
strehlratio(rms)
Arguments
pupil
A matrix of class "pupil"
rms
An rms wavefront error
Value
Estimates of the RMS and P-V wavefront errors. strehratio
calculates Mahajan's approximation to the Strehl ratio.
Note
pupilrms simply calculates the standard deviation of
finite values in the matrix pupil. This is a crude,
but usually accurate enough estimate of the true RMS wavefront
error.
summary.pupil calls these functions.
Author(s)
M.L. Peck mpeck1@ix.netcom.com
References
Schroeder, D.J. 2000, Astronomical Optics, 2nd Edition,
Academic Press, chapter 10.
See Also
summary.pupil.
Examples
zcoef <- rnorm(length(makezlist()$n), 0, 0.01)
wf <- pupil(zcoef=zcoef)
plot(wf)
summary(wf)
sqrt(crossprod(zcoef)) # A more accurate estimate of RMS
mlpeck/zernike documentation built on April 19, 2024, 3:16 p.m.
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| pupilrms | R Documentation |
Wavefront statistics
Description
Compute basic statistics of wavefronts stored in "pupil"
objects.
Usage
pupilrms(pupil)
pupilpv(pupil)
strehlratio(rms)
Arguments
pupil |
A matrix of class |
rms |
An rms wavefront error |
Value
Estimates of the RMS and P-V wavefront errors. strehratio
calculates Mahajan's approximation to the Strehl ratio.
Note
pupilrms simply calculates the standard deviation of
finite values in the matrix pupil. This is a crude,
but usually accurate enough estimate of the true RMS wavefront
error.
summary.pupil calls these functions.
Author(s)
M.L. Peck mpeck1@ix.netcom.com
References
Schroeder, D.J. 2000, Astronomical Optics, 2nd Edition, Academic Press, chapter 10.
See Also
summary.pupil.
Examples
zcoef <- rnorm(length(makezlist()$n), 0, 0.01)
wf <- pupil(zcoef=zcoef)
plot(wf)
summary(wf)
sqrt(crossprod(zcoef)) # A more accurate estimate of RMS
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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