Electro optical design for a space camera based on MODTRAN data analysis

Javad Haghshenas

doi:10.1117/12.2069469

5 December 2014 Electro optical design for a space camera based on MODTRAN data analysis

Javad Haghshenas

Author Affiliations +

Proceedings Volume 9264, Earth Observing Missions and Sensors: Development, Implementation, and Characterization III; 92640H (2014) https://doi.org/10.1117/12.2069469
Event: SPIE Asia-Pacific Remote Sensing, 2014, Beijing, China

Abstract

Electro-Optical design of a push-broom space camera for a Low Earth Orbit (LEO) remote sensing satellite is discussed in this paper. An atmosphere analysis is performed based on ModTran algorithm and the total radiance of visible light reached to the camera entrance diameter is simulated by Atmosphere radiative transfer software PcModWin. Simulation is done for various conditions of sun zenith angles and earth surface albedos to predict the signal performance in different times and locations. According to the proposed simulation of total radiance incidence, appropriate linear CCD is chosen and then an optical design is done to completely satisfy electro-optics requirements. Optical design is based on Schmidt-Cassegrain scheme, which results in simple fabrication and high accuracy. Proposed electro-optical camera satisfies 5.9 meter ground resolution with image swath of higher than 23 km on the earth surface. Satellite is assumed to be at 681km altitude with 6.8km/s ground track speed.

Citation Download Citation

Javad Haghshenas, Javad Haghshenas, "Electro optical design for a space camera based on MODTRAN data analysis", Proc. SPIE 9264, Earth Observing Missions and Sensors: Development, Implementation, and Characterization III, 92640H (5 December 2014); doi: 10.1117/12.2069469; https://doi.org/10.1117/12.2069469

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