Share Email Print
cover

Proceedings Paper

Comparing and contrasting different broadband MTF definitions and the relationship to range performance predictions
Author(s): Jonathan G. Hixson; David P. Haefner; Brian Teaney
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The monochromatic modulation transfer function (MTF) is a spectral average across wavelength weighted by the sensor’s spectral sensitivity and scaled by the spectral behavior of the source. For reflective band sensors, where there are significant variations in spectral shape of the reflected light, this spectral averaging can result in very different MTFs and, therefore, the resulting performance. In this paper, we explore the influence of this spectral averaging on performance utilizing NV-IPM v1.1 (Night Vision Integrated Performance Model). We report the errors in range performance when a system is characterized with one illumination and the performance is quoted for another. Our results summarize the accuracy of different assumptions to how a monochromatic MTF can be approximated, and how the measurement conditions under which a system was characterized should be considered when modeling performance.

Paper Details

Date Published: 29 May 2014
PDF: 8 pages
Proc. SPIE 9071, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXV, 907105 (29 May 2014); doi: 10.1117/12.2050362
Show Author Affiliations
Jonathan G. Hixson, U.S. Army Night Vision & Electronic Sensors Directorate (United States)
David P. Haefner, U.S. Army Night Vision & Electronic Sensors Directorate (United States)
Brian Teaney, U.S. Army Night Vision & Electronic Sensors Directorate (United States)


Published in SPIE Proceedings Vol. 9071:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXV
Gerald C. Holst; Keith A. Krapels; Gary H. Ballard; James A. Buford; R. Lee Murrer, Editor(s)

© SPIE. Terms of Use
Back to Top