
Proceedings Paper
Modeling of the over-exposed pixel area of CCD cameras caused by laser dazzlingFormat | Member Price | Non-Member Price |
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Paper Abstract
A simple model has been developed and implemented in Matlab code, predicting the over-exposed pixel area of cameras
caused by laser dazzling. Inputs of this model are the laser irradiance on the front optics of the camera, the Point Spread
Function (PSF) of the used optics, the integration time of the camera, and camera sensor specifications like pixel size,
quantum efficiency and full well capacity. Effects of the read-out circuit of the camera are not incorporated. The model
was evaluated with laser dazzle experiments on CCD cameras using a 532 nm CW laser dazzler and shows good
agreement. For relatively low laser irradiance the model predicts the over-exposed laser spot area quite accurately and
shows the cube root dependency of spot diameter on laser irradiance, caused by the PSF as demonstrated before for IR
cameras. For higher laser power levels the laser induced spot diameter increases more rapidly than predicted, which
probably can be attributed to scatter effects in the camera. Some first attempts to model scatter contributions, using a
simple scatter power function f(θ), show good resemblance with experiments. Using this model, a tool is available which
can assess the performance of observation sensor systems while being subjected to laser countermeasures.
Paper Details
Date Published: 7 October 2014
PDF: 9 pages
Proc. SPIE 9251, Technologies for Optical Countermeasures XI; and High-Power Lasers 2014: Technology and Systems, 92510H (7 October 2014); doi: 10.1117/12.2066305
Published in SPIE Proceedings Vol. 9251:
Technologies for Optical Countermeasures XI; and High-Power Lasers 2014: Technology and Systems
David H. Titterton; Willy L. Bohn; Harro Ackermann; Mark A. Richardson; Robert J. Grasso, Editor(s)
PDF: 9 pages
Proc. SPIE 9251, Technologies for Optical Countermeasures XI; and High-Power Lasers 2014: Technology and Systems, 92510H (7 October 2014); doi: 10.1117/12.2066305
Show Author Affiliations
Koen W. Benoist, TNO Defence, Security and Safety (Netherlands)
Ric H. M. A. Schleijpen, TNO Defence, Security and Safety (Netherlands)
Published in SPIE Proceedings Vol. 9251:
Technologies for Optical Countermeasures XI; and High-Power Lasers 2014: Technology and Systems
David H. Titterton; Willy L. Bohn; Harro Ackermann; Mark A. Richardson; Robert J. Grasso, Editor(s)
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