Hardening GEO missile warning satellites against thermal jamming by out-of-band airborne lasers

John R. Solin

doi:10.1117/12.2582850

12 April 2021 Hardening GEO missile warning satellites against thermal jamming by out-of-band airborne lasers

John R. Solin

Proceedings Volume 11755, Sensors and Systems for Space Applications XIV; 117550P (2021) https://doi.org/10.1117/12.2582850
Event: SPIE Defense + Commercial Sensing, 2021, Online Only

Abstract

A method is described for hardening GEO missile warning satellites against jamming by airborne lasers with wavelengths out-of-band to the satellite’s sensor. The lasers jam by heating the telescope optics to temperatures where the glow from the optics masks the signal from missile plumes. Cooling the relatively isolated scan mirror near the aperture of the telescope is a particular concern. Connecting cooling pipes to it could interfere with its motion. Spraying a cold gas on it could cause contamination. Here thermal radiation transport theory is used to show that cooling the walls of the fore-optics enclosure to ~ 130 K during an attack will adequately cool the scan mirror and protect the sensor from thermal jamming.

Conference Presentation

Citation Download Citation

John R. Solin "Hardening GEO missile warning satellites against thermal jamming by out-of-band airborne lasers", Proc. SPIE 11755, Sensors and Systems for Space Applications XIV, 117550P (12 April 2021); https://doi.org/10.1117/12.2582850

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