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A Space/Fast-Time Adaptive Monopulse Technique
EURASIP Journal on Advances in Signal Processing volume 2006, Article number: 014510 (2006)
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.
Davis RC, Brennan LE, Reed LS: Angle estimation with adaptive arrays in external noise fields. IEEE Transactions on Aerospace and Electronic Systems 1976, 12(2):179–186.
Kogon SM: Adaptive array processing techniques for terrain scattered interference mitigation, M.S. thesis. Georgia Institute of Technology, Atlanta, Ga, USA; 1997.
Kogon SM, Williams DB, Holder EJ: Beamspace techniques for hot clutter cancellation. Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP '96), May 1996, Atlanta, Ga, USA 2: 1177–1180.
Kogon SM, Holder EJ, Williams DB: Mainbeam jammer suppression using multipath returns. Proceedings of 31st Asilomar Conference on Signals, Systems & Computers, November 1997, Pacific Grove, Calif, USA 1: 279–283.
Kogon SM, Holder EJ, Williams DB: On the use of terrain scattered interference for mainbeam jammer suppression. Proceedings of 5th Annual Workshop on Adaptive Sensor Array Processing (ASAP '97), March 1997, MIT Lincoln Laboratory, Lexington, Mass, USA
Kogon SM, Williams DB, Holder EJ: Exploiting coherent multipath for mainbeam jammer suppression. IEE Proceedings—Radar, Sonar and Navigation 1998, 145(5):303–308. 10.1049/ip-rsn:19982221
Paine AS: Application of the minimum variance monopulse technique to space-time adaptive processing. Proceedings of 2000 IEEE International Radar Conference, May 2000, Alexandria, Va, USA 596–601.
Nickel U: Generalised monopulse estimation and its performance. Proceedings of 3rd IEEE International Symposium on Signal Processing and Information Technology (ISSPIT '03), December 2003, Darmstadt, Germany 174–177.
Frost OL III: An algorithm for linearly constrained adaptive array processing. Proceedings of the IEEE 1972, 60(8):926–935.
Sherman SM: Monopulse Principles and Techniques. Artech House, Norwood, Mass, USA; 1984.
Titi GW, Marshall DF: The ARPA/NAVY mountaintop program: adaptive signal processing for airborne early warning radar. Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP '96), May 1996, Atlanta, Ga, USA 2: 1165–1168.
USAF Rome Laboratory : Mountaintop Program Summit Data: ASAP 1995 Data Release. March 1995
Seliktar Y: Space-time adaptive monopulse processing, M.S. thesis. Georgia Institute of Technology, Atlanta, Ga, USA; 1998.
Seliktar Y, Williams DB, Holder EJ: Adaptive monopulse processing of monostatic clutter and coherent interference in the presence of mainbeam jamming. Proceedings of 32nd Asilomar Conference on Signals, Systems & Computers, November 1998, Pacific Grove, Calif, USA 2: 1517–1521.
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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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