Stray-light correction in magnetograph observations using the maximum entropy method

Details Stray-light correction in magnetograph observations using the maximum entropy method Stray-light correction in magnetograph observations using the maximum entropy method

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998soph..183..245c&link_type=abstract

Solar Physics, v. 183, Issue 2, p. 245-261 (1998).

Physics

8

Scientific paper

We have developed a method of stray-light correction which is applicable to filter-based magnetograph observations. Stray-light-corrected Stokes images are obtained by performing the deconvolution of observed Stokes images by the point spread function which is determined from the Stokes I image. For image deconvolution, the maximum entropy principle is used to guarantee that intensity should be positive and polarization degrees should be less than unity. We present an iterative algorithm for the maximum entropy method, which seeks the solution in Fourier space and thus accomplishes fast convergence. We find that our method is effective in correcting stray light which has a spread angle greater than the full width at half maximum of the point spread function. We also discuss the effect of stray light on magnetograph calibration.

Affiliated with

Also associated with

No associations

Rating

Stray-light correction in magnetograph observations using the maximum entropy method does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Stray-light correction in magnetograph observations using the maximum entropy method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stray-light correction in magnetograph observations using the maximum entropy method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-765629