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

Matthew Ferrara; Gregory Arnold; Margaret Cheney

doi:10.1117/12.723152

3 May 2007 Two joint time-frequency transforms for velocity separation of moving target radar data

Matthew Ferrara, Gregory Arnold, Margaret Cheney

Proceedings Volume 6547, Radar Sensor Technology XI; 654706 (2007) https://doi.org/10.1117/12.723152
Event: Defense and Security Symposium, 2007, Orlando, Florida, United States

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.

Citation Download Citation

Matthew Ferrara, Gregory Arnold, and Margaret Cheney "Two joint time-frequency transforms for velocity separation of moving target radar data", Proc. SPIE 6547, Radar Sensor Technology XI, 654706 (3 May 2007); https://doi.org/10.1117/12.723152

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