An Infrared Camera Simulation for Estimating Spatial Temperature Profiles and Signal-To-Noise Ratios of an Airborne Laser-Illuminated Target - Softcover

Orth, David F.

Softcover

ISBN 10: 1288332432 ISBN 13: 9781288332434

Verlag: LIGHTNING SOURCE INC, 2012

Inhaltsangabe

Airborne Laser testing and evaluation can be aided by developing a spectrally-based infrared camera simulation to explore how the target surface's specular and diffuse reflectivities affect the observed signal-to-noise ratio (SNR)and how the target's temperature in the laserspot can estimated. This simulation provides for the observed irradiance, scaled by atmospheric absorption, to consist of the target's self-emission, reflected background emission, and the path emission from the observer to the target. The observed irradiance isscaled and distributed onto a focal plane array by way of a simulated optical system, whose effectsare described by modulation transfer functions. The modeled detector response converts the observed irradiance to a current signal from which detector noise quantities are computed. Analyzing the simulated data shows that the observed SNR is dependent upon the target's reflectivity, and leads to a conclusion that the mid-wave infrared band is best choice for observing the thermal emission. For estimating temperature, a least-squares optimization will not work because of the effects of the point spread function.

Details zur Ausgabe

• Verlag: LIGHTNING SOURCE INC
• Erscheinungsdatum: 2012
• Sprache: Englisch
• ISBN 10: 1288332432
• ISBN 13: 9781288332434
• Einband: Taschenbuch
• Anzahl der Seiten: 132
• Kontakt zum Hersteller: Nicht verfügbar
• Verantwortliche Person: preigu; mail@preigu.de; ; Lengericher Landstr. 19; Osnabrück; 49078; Deutschland