Development of algorithms for on-focal-plane gamma circumvention and time-delay integration

Mark A. Parish

doi:10.1117/12.23014

1 November 1990 Development of algorithms for on-focal-plane gamma circumvention and time-delay integration

Mark A. Parish

Proceedings Volume 1339, Materials, Devices, Techniques, and Applications for Z-Plane Focal Plane Array Technology II; (1990) https://doi.org/10.1117/12.23014
Event: 34th Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1990, San Diego, CA, United States

Abstract

Algorithms are described for ordering, averaging, and spike adaptive non-linear gamma circumvention. These algorithms take advantage of the nominally matched-insignal and position-correlated samples from the detectors of the time delay integration (TDI) chain of a scanning sensor. The effects of averaging and median (ordering) filtering on Gaussian noise and Gaussian plus gamma noise are presented along with the requirement for additional post filtering for these algorithms. Monte Carlo techniques are used to predict the performance of the various circumvention algorithms for both endoatmospheric and exoatmospheric applications. Finally, selected gamma circumvention algorithms suitable for on-focal plane mechanization using large scale integration (LSI) technology are presented.

Citation Download Citation

Mark A. Parish "Development of algorithms for on-focal-plane gamma circumvention and time-delay integration", Proc. SPIE 1339, Materials, Devices, Techniques, and Applications for Z-Plane Focal Plane Array Technology II, (1 November 1990); https://doi.org/10.1117/12.23014

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