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Proceedings Paper

Two joint time-frequency transforms for velocity separation of moving target radar data
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Paper Abstract

This paper describes work that considered two Joint Time-Frequency Transforms (JTFTs) for use in a SAR-based (single sensor/platform Synthetic Aperture Radar) 3D imaging approach. The role of the JTFT is to distinguish moving point scatterers that may become collocated during the observation interval. A Frequency Domain Velocity Filter Bank (FDVFB) was compared against the well-known Short Time Fourier Transform (STFT) in terms of their maximal Time-Frequency energy concentrations. The FDVFB and STFT energy concentrations were compared for a variety of radar scenarios. In all cases the STFT achieved slightly higher energy concentrations while simultaneously requiring half the computations needed by the FDVFB.

Paper Details

Date Published: 3 May 2007
PDF: 12 pages
Proc. SPIE 6547, Radar Sensor Technology XI, 654706 (3 May 2007); doi: 10.1117/12.723152
Show Author Affiliations
Matthew Ferrara, Air Force Research Lab. (United States)
Gregory Arnold, Air Force Research Lab. (United States)
Margaret Cheney, Rensselaer Polytechnic Institute (United States)

Published in SPIE Proceedings Vol. 6547:
Radar Sensor Technology XI
James L. Kurtz; Robert J. Tan, Editor(s)

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