Segmented aperture space telescope modeling used for remote sensing and image utility analysis

Michael E. Zelinski; John R. Schott

doi:10.1117/12.818935

6 May 2009 Segmented aperture space telescope modeling used for remote sensing and image utility analysis

Michael E. Zelinski, John R. Schott

Author Affiliations +

Proceedings Volume 7330, Sensors and Systems for Space Applications III; 733009 (2009) https://doi.org/10.1117/12.818935
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

The terrestrial remote sensing community is interested in segmented aperture space telescopes with geometries similar to NASA's James Webb Space Telescope (JWST). However, the unorthodox design has caused a decrease in image quality introduced by piston, tip, and tilt phasing errors of the segments and lightweight mirror aberrations. Traditionally image quality has been determined using the Generalized Image Quality Equation (GIQE), however Fiete et.al.1 have shown that there are inherent problems with the GIQE method when working with apertures that are not circularly symmetric. In this paper an image utility technique utilizing a multispectral motion detection algorithm is used to show how changes in mirror phasing and varying degrees of lightweight mirror aberrations affect a systems utility for detecting motion.

Citation Download Citation

Michael E. Zelinski and John R. Schott "Segmented aperture space telescope modeling used for remote sensing and image utility analysis", Proc. SPIE 7330, Sensors and Systems for Space Applications III, 733009 (6 May 2009); https://doi.org/10.1117/12.818935

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