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Proceedings Paper

Multisensors signature prediction workbench
Author(s): Jean Latger; Thierry Cathala
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Paper Abstract

Guidance of weapon systems relies on sensors to analyze targets signature. Defense weapon systems also need to detect then identify threats also using sensors. The sensors performance is very dependent on conditions e.g. time of day, atmospheric propagation, background ... Visible camera are very efficient for diurnal fine weather conditions, long wave infrared sensors for night vision, radar systems very efficient for seeing through atmosphere and/or foliage ... Besides, multi sensors systems, combining several collocated sensors with associated algorithms of fusion, provide better efficiency (typically for Enhanced Vision Systems). But these sophisticated systems are all the more difficult to conceive, assess and qualify. In that frame, multi sensors simulation is highly required. This paper focuses on multi sensors simulation tools.

A first part makes a state of the Art of such simulation workbenches with a special focus on SE-Workbench. SEWorkbench is described with regards to infrared/EO sensors, millimeter waves sensors, active EO sensors and GNSS sensors. Then a general overview of simulation of targets and backgrounds signature objectives is presented, depending on the type of simulation required (parametric studies, open loop simulation, closed loop simulation, hybridization of SW simulation and HW ...). After the objective review, the paper presents some basic requirements for simulation implementation such as the deterministic behavior of simulation, mandatory to repeat it many times for parametric studies... Several technical topics are then discussed, such as the rendering technique (ray tracing vs. rasterization), the implementation (CPU vs. GP GPU) and the tradeoff between physical accuracy and performance of computation. Examples of results using SE-Workbench are showed and commented.

Paper Details

Date Published: 21 October 2015
PDF: 14 pages
Proc. SPIE 9653, Target and Background Signatures, 965308 (21 October 2015); doi: 10.1117/12.2195052
Show Author Affiliations
Jean Latger, OKTAL Synthetic Environment (France)
Thierry Cathala, OKTAL Synthetic Environment (France)

Published in SPIE Proceedings Vol. 9653:
Target and Background Signatures
Karin U. Stein; Ric H. M. A. Schleijpen, Editor(s)

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