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Proceedings Article

Three-dimensional fully polarimetric W-band ISAR imagery of scale-model tactical targets using a 1.56-THz compact range

[+] Author Affiliations
Thomas M. Goyette, Jason C. Dickinson, Jerry Waldman

Univ. of Massachusetts, Lowell (USA)

William E. Nixon

U.S. Army National Ground Intelligence Ctr. (USA)

Proc. SPIE 5095, Algorithms for Synthetic Aperture Radar Imagery X, 66 (September 18, 2003); doi:10.1117/12.487151
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From Conference Volume 5095

  • Algorithms for Synthetic Aperture Radar Imagery X
  • Edmund G. Zelnio; Frederick D. Garber
  • Orlando, FL | April 21, 2003

abstract

Using the high-frequency terahertz compact range developed recently for measurement of polarimetric return of scale modesl of tactical targets, we have developed several techniques to produce 3D data sets. Fully polarimetric 3D ISAR data has been collected on several 1/16th scale model tactical targets in free space at individual look angles. The 3D scattering coordinates are calculated by viewing the target through a 2D angular aperture in both azimuth and elevation while simultaneously performing a linear frequency chirp to measure the down-range coordinate. Due to the high frequency of W-band radar, this technique produces high-resolution cross-range images from relatively small (approximately 1 degree) angular integrations. Several techniques for calculation of the 3D coordinates have been developed. In addition to the technique described above, a new method utilizing the phase change of the scattering centers due to differentially small changes in angle will be described. Data collected using this technique can be processed to produce 3D scattering information similar to that obtained by monopulse systems. Results from this analysis will be shown.

© (2003) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Thomas M. Goyette ; Jason C. Dickinson ; Jerry Waldman and William E. Nixon
"Three-dimensional fully polarimetric W-band ISAR imagery of scale-model tactical targets using a 1.56-THz compact range", Proc. SPIE 5095, Algorithms for Synthetic Aperture Radar Imagery X, 66 (September 18, 2003); doi:10.1117/12.487151; http://dx.doi.org/10.1117/12.487151


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