Share Email Print
cover

Proceedings Paper

A method for measuring laser incident direction with non-imaging mode and resolution analysis
Author(s): Bing Li; Yue-jin Zhao; Xiao-hu Guo; Jing-shui Zhang; Ling-qin Kong
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

One of the most crucial techniques of laser warning system is to acquire the direction information from the laser threat. According to the low resolution of laser warning system with imaging mode, a new method for measuring laser incident direction which possessed higher resolution was proposed. This novel method was based on cylindrical lens group and linear IRFPA, and the laser incident direction was achieved by offset of line spot. It not only deduced the direction formulas, but also analyzed the resolution of measuring laser incident direction in detail. The simulation result shows that the FOV of this new kind of laser warning system could achieve ±16°; the azimuth resolution is up to 0.52° and pitch resolution is up to 0.017°; the resolution increases with incident angle. In addition, an experiment with visible light, single cylindrical lens, linear array CCD was done to verify this method and its advantage on resolution. The analysis of laser incident orientation resolution is significant to select suitable parameter of detector and demonstrate orientation resolution of system.

Paper Details

Date Published: 27 September 2013
PDF: 9 pages
Proc. SPIE 8840, Optical Modeling and Performance Predictions VI, 88400I (27 September 2013); doi: 10.1117/12.2021515
Show Author Affiliations
Bing Li, Beijing Institute of Technology (China)
Yue-jin Zhao, Beijing Institute of Technology (China)
Xiao-hu Guo, Beijing Institute of Technology (China)
Jing-shui Zhang, Beijing Institute of Technology (China)
Ling-qin Kong, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 8840:
Optical Modeling and Performance Predictions VI
Mark A. Kahan; Marie B. Levine, Editor(s)

© SPIE. Terms of Use
Back to Top