The Dynamic Behavior Of A Fixed Earth Scene As Viewed By A Satellite-Borne Staring Mosaic Sensor

D. C. Webster

doi:10.1117/12.955836

9 November 1977 The Dynamic Behavior Of A Fixed Earth Scene As Viewed By A Satellite-Borne Staring Mosaic Sensor

D. C. Webster

Proceedings Volume 0124, Modern Utilization of Infrared Technology III; (1977) https://doi.org/10.1117/12.955836
Event: 21st Annual Technical Symposium, 1977, San Diego, United States

Abstract

A satellite-borne staring mosaic sensor has a line-of-sight that is stabilized on a fixed earth point. As the satellite passes near this point, detectors not on the line of sight are subjected to noise produced by apparent background motion. This motion is produced by footprint shrinkage, change in aspect angle, and earth rotation. The motion is affected by satellite orbit parameters, earth location of the observed scene, and detector location in the sensor focal plane. Additional motion produced by satellite instability may increase these effects or negate them depending on random direction. Equations are presented which enable the instantaneous description of the complete state of the focal plane scene. Samples of dynamic detector footprints, views of changing earth scenes, and graphs of background velocities are included. Effect of spacecraft instability is presented in terms of upper and lower bounds on the velocity magnitudes.

Citation Download Citation

D. C. Webster "The Dynamic Behavior Of A Fixed Earth Scene As Viewed By A Satellite-Borne Staring Mosaic Sensor", Proc. SPIE 0124, Modern Utilization of Infrared Technology III, (9 November 1977); https://doi.org/10.1117/12.955836

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