15 April 2008 Imaging that exploits spatial, temporal, and spectral aspects of far-field radar data
Author Affiliations +
Abstract
We develop a linearized imaging theory that combines the spatial, temporal, and spectral aspects of scattered waves. We consider the case of fixed sensors and a general distribution of objects, each undergoing linear motion; thus the theory deals with imaging distributions in phase space. We derive a model for the data that is appropriate for any waveform, and show how it specializes to familiar results when the targets are far from the antennas and narrowband waveforms are used. We develop a phase-space imaging formula that can be interpreted in terms of filtered backprojection or matched filtering. For this imaging approach, we derive the corresponding point-spread function. We show that special cases of the theory reduce to: a) Range-Doppler imaging, b) Inverse Synthetic Aperture Radar (isar), c) Spotlight Synthetic Aperture Radar (sar), d) Diffraction Tomography, and e) Tomography of Moving Targets. We also show that the theory gives a new SAR imaging algorithm for waveforms with arbitrary ridge-like ambiguity functions.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Margaret Cheney, Margaret Cheney, Brett Borden, Brett Borden, } "Imaging that exploits spatial, temporal, and spectral aspects of far-field radar data", Proc. SPIE 6970, Algorithms for Synthetic Aperture Radar Imagery XV, 69700I (15 April 2008); doi: 10.1117/12.777416; https://doi.org/10.1117/12.777416
PROCEEDINGS
11 PAGES


SHARE
RELATED CONTENT

Study on the estimation of the range parameter for SAR...
Proceedings of SPIE (December 08 2015)
Tomography of moving targets (TMT)
Proceedings of SPIE (December 11 2001)
Region-enhanced imaging for sparse-aperture passive radar
Proceedings of SPIE (September 01 2004)
Doppler synthetic aperture radar imaging
Proceedings of SPIE (May 04 2011)

Back to Top