Joint time-frequency analysis of high-bandwidth low-resolution ISAR imaging systems

Patrick Ghogomu; Markus E. Testorf

doi:10.1117/12.486396

12 September 2003 Joint time-frequency analysis of high-bandwidth low-resolution ISAR imaging systems

Patrick Ghogomu, Markus E. Testorf

Proceedings Volume 5095, Algorithms for Synthetic Aperture Radar Imagery X; (2003) https://doi.org/10.1117/12.486396
Event: AeroSense 2003, 2003, Orlando, Florida, United States

Abstract

Joint time-frequency analysis is applied to radar imaging problems. Special attention is given to imaging applications, for which the resolution is severely limited due the available bandwidth of the radar signal both in range and cross-range. This includes the detection of landmines as well as foliage penetration radar imaging. Motivated by this type of imaging problem a new joint time-frequency method, the STPDFT algorithm is introduced and compared with existing methods. The performance of all methods is illustrated with synthetic test signals. In addition, preliminary results are presented which demonstrate the performance of joint-time frequency transforms, if applied to low resolution imaging problems.

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Patrick Ghogomu and Markus E. Testorf "Joint time-frequency analysis of high-bandwidth low-resolution ISAR imaging systems", Proc. SPIE 5095, Algorithms for Synthetic Aperture Radar Imagery X, (12 September 2003); https://doi.org/10.1117/12.486396

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KEYWORDS

Radar imaging

Time-frequency analysis

Radar

Detection and tracking algorithms

Image resolution

Fourier transforms

Reconstruction algorithms

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