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A Space/Fast-Time Adaptive Monopulse Technique

EURASIP Journal on Advances in Signal Processing volume 2006, Article number: 014510 (2006) Cite this article

Abstract

Mainbeam jamming poses a particularly difficult challenge for conventional monopulse radars. In such cases spatially adaptive processing provides some interference suppression when the target and jammer are not exactly coaligned. However, as the target angle approaches that of the jammer, mitigation performance is increasingly hampered and distortions are introduced into the resulting beam pattern. Both of these factors limit the reliability of a spatially adaptive monopulse processor. The presence of coherent multipath in the form of terrain-scattered interference (TSI), although normally considered a nuisance, can be exploited to suppress mainbeam jamming with space/fast-time processing. A method is presented offering space/fast-time monopulse processing with distortionless spatial array patterns that can achieve improved angle estimation over spatially adaptive monopulse. Performance results for the monopulse processor are obtained for mountaintop data containing a jammer and TSI, which demonstrate a dramatic improvement in performance over conventional monopulse and spatially adaptive monopulse.

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Authors and Affiliations

  1. Jerusalem College of Engineering, P.O. Box 3566, Jerusalem, 91035, Israel

    Yaron Seliktar

  2. School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0250, USA

    Douglas B. Williams

  3. Sensors and Electromagnetic Applications Laboratory, Georgia Tech Research Institute, 7220 Richardson Road, Smyrna, GA, 30080-1041, USA

    E. Jeff Holder

Authors
  1. Yaron Seliktar
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  2. Douglas B. Williams
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  3. E. Jeff Holder
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Corresponding author

Correspondence to Yaron Seliktar.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Seliktar, Y., Williams, D.B. & Holder, E.J. A Space/Fast-Time Adaptive Monopulse Technique. EURASIP J. Adv. Signal Process. 2006, 014510 (2006). https://doi.org/10.1155/ASP/2006/14510

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  • DOI: https://doi.org/10.1155/ASP/2006/14510

Keywords

  • Radar
  • Information Technology
  • Quantum Information
  • Dramatic Improvement
  • Adaptive Processing