The Influence Of Line-Of-Sight Vibrations On The Performance Of E-0 Imaging Systems

E. Halevi; B. F. Andresen; Y. Liran

doi:10.1117/12.941805

10 November 1987 The Influence Of Line-Of-Sight Vibrations On The Performance Of E-0 Imaging Systems

E. Halevi, B. F. Andresen, Y. Liran

Proceedings Volume 0819, Infrared Technology XIII; (1987) https://doi.org/10.1117/12.941805
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

The models currently used for line-of-sight (LOS) MTFs associated with FLIR platform instabilities do not account well for the frequency content of the vibrations, the ability of the brain to "track" certain motions, or for the frame-to-frame integration. This paper presents some first results from LOS MTF measurements carried out with fast-scanning FLIRs subjected to sinusoidal and random vibrations. Only the direction of continuous scan has been considered at this stage. Our results show that the current models predict LOS MTFs which are too pessimistic. This is particularly apparent in the case of an observer-operated FLIR for the important range-determining middle spatial frequencies. The standard theory has been extended to account for frame-to-frame integration in systems which do not include an observer. This theory is used as a basis for discussion of all measured results, including those involving a human observer.

Citation Download Citation

E. Halevi, B. F. Andresen, and Y. Liran "The Influence Of Line-Of-Sight Vibrations On The Performance Of E-0 Imaging Systems", Proc. SPIE 0819, Infrared Technology XIII, (10 November 1987); https://doi.org/10.1117/12.941805

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