Slant path range gated imaging of static and moving targets

Ove Steinvall; Magnus Elmqvist; Kjell Karlsson; Ove Gustafsson; Tomas Chevalier

doi:10.1117/12.919101

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26 May 2012 Slant path range gated imaging of static and moving targets

Ove Steinvall; Magnus Elmqvist; Kjell Karlsson; Ove Gustafsson; Tomas Chevalier

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Proceedings Volume 8379, Laser Radar Technology and Applications XVII; 83790W (2012) https://doi.org/10.1117/12.919101
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

This paper will report experiments and analysis of slant path imaging using 1.5 μm and 0.8 μm gated imaging. The investigation is a follow up on the measurement reported last year at the laser radar conference at SPIE Orlando. The sensor, a SWIR camera was collecting both passive and active images along a 2 km long path over an airfield. The sensor was elevated by a lift in steps from 1.6-13.5 meters. Targets were resolution charts and also human targets. The human target was holding various items and also performing certain tasks some of high of relevance in defence and security. One of the main purposes with this investigation was to compare the recognition of these human targets and their activities with the resolution information obtained from conventional resolution charts. The data collection of human targets was also made from out roof top laboratory at about 13 m height above ground. The turbulence was measured along the path with anemometers and scintillometers. The camera was collecting both passive and active images in the SWIR region. We also included the Obzerv camera working at 0.8 μm in some tests. The paper will present images for both passive and active modes obtained at different elevations and discuss the results from both technical and system perspectives.

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Ove Steinvall, Magnus Elmqvist, Kjell Karlsson, Ove Gustafsson, and Tomas Chevalier "Slant path range gated imaging of static and moving targets", Proc. SPIE 8379, Laser Radar Technology and Applications XVII, 83790W (26 May 2012); https://doi.org/10.1117/12.919101