A global review of optronic synthetic aperture radar/ladar processing

Linda Marchese; Michel Doucet; Pascal Bourqui; Bernd Harnisch; Martin Suess; Mathieu Legros; Nochola Desnoyers; Simon Turbide; Sandra Turgeon; Luc Mercier; Maxime Savard; Anne Martel; François Châteauneuf; Alain Bergeron

doi:10.1117/12.2015624

31 May 2013 A global review of optronic synthetic aperture radar/ladar processing

Linda Marchese, Michel Doucet, Pascal Bourqui, Bernd Harnisch, Martin Suess, Mathieu Legros, Nochola Desnoyers, Simon Turbide, Sandra Turgeon, Luc Mercier, Maxime Savard, Anne Martel, François Châteauneuf, Alain Bergeron

Author Affiliations +

Proceedings Volume 8714, Radar Sensor Technology XVII; 871416 (2013) https://doi.org/10.1117/12.2015624
Event: SPIE Defense, Security, and Sensing, 2013, Baltimore, Maryland, United States

Abstract

Synthetic aperture (SA) techniques are currently employed in a variety of imaging modalities, such as radar (SAR) and ladar (SAL). The advantage of fine resolution provided by these systems far outweighs the disadvantage of having large amounts of raw data to process to obtain the final image. Digital processors have been the mainstay for synthetic aperture processing since the 1980’s; however, the original method was optical that is, it employed lenses and other optical elements. This paper provides a global review of a compact light weight optronic processor that combines optical and digital techniques for ultra-fast generation of synthetic aperture images. The overall design of the optronic processor is detailed, including the optical design and data control and handling. As well, its real-time capabilities are demonstrated. Example ENVISAT/ASAR images generated optronically are also presented and compared with ENVISAT Level 1 products. As well, the extended capabilities of optronic processing, including wavefront correction and interferometry are discussed. Finally, a tabletop synthetic aperture ladar system is introduced and SAL images generated using the exact optronic processor designed for SAR image generation are presented.

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Linda Marchese, Michel Doucet, Pascal Bourqui, Bernd Harnisch, Martin Suess, Mathieu Legros, Nochola Desnoyers, Simon Turbide, Sandra Turgeon, Luc Mercier, Maxime Savard, Anne Martel, François Châteauneuf, and Alain Bergeron "A global review of optronic synthetic aperture radar/ladar processing", Proc. SPIE 8714, Radar Sensor Technology XVII, 871416 (31 May 2013); https://doi.org/10.1117/12.2015624

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