Imaging spectrometer F-number optimization for remote sensing of gases

John F. Silny; Brad A. Flanders

doi:10.1117/12.2323616

18 September 2018 Imaging spectrometer F-number optimization for remote sensing of gases

John F. Silny, Brad A. Flanders

Proceedings Volume 10768, Imaging Spectrometry XXII: Applications, Sensors, and Processing; 1076803 (2018) https://doi.org/10.1117/12.2323616
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

Detection of gases by a remote sensor has wide-ranging utility. The optimum sensor design depends on several key characteristics of the scene and imaging geometry. A generalized analysis of the signal-to-noise ratio (SNR) and spatial resolution shows that the optimum sensor F-number depends on the spatial distribution of the gas. Detection of a broad area emission results in a different optimal sensor configuration than when the emission is localized. The optimum F-number also depends on the exposure settings. A parametric analysis shows that detection performance varies between F_#^-2 and F_#⁴. The results of this paper provide guidance for sensor designers to optimize gas detection by imaging spectrometers.

Conference Presentation

Citation Download Citation

John F. Silny and Brad A. Flanders "Imaging spectrometer F-number optimization for remote sensing of gases", Proc. SPIE 10768, Imaging Spectrometry XXII: Applications, Sensors, and Processing, 1076803 (18 September 2018); https://doi.org/10.1117/12.2323616

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