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Sensors 2013, 13(4), 5381-5402; doi:10.3390/s130405381

Computational Burden Resulting from Image Recognition of High Resolution Radar Sensors

1,* , 1
1 National Institute for Aerospace Technology (INTA), Torrejón de Ardoz, 28850 Madrid, Spain 2 Department of Electronics, University of Alcalá, Alcalá de Henares, 28871 Madrid, Spain
* Author to whom correspondence should be addressed.
Received: 21 February 2013 / Revised: 12 April 2013 / Accepted: 12 April 2013 / Published: 22 April 2013
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Spain 2013)
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This paper presents a methodology for high resolution radar image generation and automatic target recognition emphasizing the computational cost involved in the process. In order to obtain focused inverse synthetic aperture radar (ISAR) images certain signal processing algorithms must be applied to the information sensed by the radar. From actual data collected by radar the stages and algorithms needed to obtain ISAR images are revised, including high resolution range profile generation, motion compensation and ISAR formation. Target recognition is achieved by comparing the generated set of actual ISAR images with a database of ISAR images generated by electromagnetic software. High resolution radar image generation and target recognition processes are burdensome and time consuming, so to determine the most suitable implementation platform the analysis of the computational complexity is of great interest. To this end and since target identification must be completed in real time, computational burden of both processes the generation and comparison with a database is explained separately. Conclusions are drawn about implementation platforms and calculation efficiency in order to reduce time consumption in a possible future implementation.
Keywords: high resolution radar; radar imagery; ISAR; target recognition; computational burden; NCC high resolution radar; radar imagery; ISAR; target recognition; computational burden; NCC
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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López-Rodríguez, P.; Fernández-Recio, R.; Bravo, I.; Gardel, A.; Lázaro, J.L.; Rufo, E. Computational Burden Resulting from Image Recognition of High Resolution Radar Sensors. Sensors 2013, 13, 5381-5402.

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