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Proceedings Paper

Detection method for the dynamic signal in light screen array based on constant false alarm rate
Author(s): Ding Chen; Jinping Ni; Lang Bai; Dachuan Chen
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Paper Abstract

The detection performance of light screen array (LSA) is predominantly affected by sky background noise, and this probably leads to decrease of its effective detection height. This research addresses a method based on constant false alarm rate (CFAR) to solve this problem effectively. The characteristics of the dynamic signal of the LSA are reasonably analyzed, and a Bayesian classification model is scientifically formulated. We construct an adaptive threshold detector using CFAR, thereby extracting the dynamic signal, effectively, under the poor signal to noise ratio (-1 to 5dB). Through semi-physical simulation and live ammunition test, the assessments demonstrate the proposed method can increase the effective detection height of a flying projectile by 20% at least, and its performance is better than previous those.

Paper Details

Date Published: 24 January 2019
PDF: 9 pages
Proc. SPIE 11052, Third International Conference on Photonics and Optical Engineering, 1105202 (24 January 2019); doi: 10.1117/12.2519526
Show Author Affiliations
Ding Chen, Xi'an Technological Univ. (China)
Jinping Ni, Xi'an Technological Univ. (China)
Lang Bai, Xi'an Technological Univ. (China)
Dachuan Chen, Aviation Univ. of Air Force (China)

Published in SPIE Proceedings Vol. 11052:
Third International Conference on Photonics and Optical Engineering
Ailing Tian, Editor(s)

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