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Monopulse Beamforming Network for Target Angle Tracking  

Moon Sung-Hoon (School of Electronic & Electrical Engineering, Kyungpook National University)
Han Dong-Seog (School of Electronic & Electrical Engineering, Kyungpook National University)
Cho Myeong-Je (Agency for Defense Development)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.41, no.1, 2004 , pp. 53-64 More about this Journal
Abstract
This paper proposes a monopulse beamforming network to estimate a target angle in interference conditions. The proposed system estimates the target direction of arrival (DOA) with two separate beamformings for azimuth and elevation with a planar may. The elevation is extracted from adaptive beamforming in the azimuth direction and the azimuth from adaptive beamforming in the elevation direction. Unlike conventional monopulse beamforming techniques using complex correction formulas or a cascaded architecture of an adaptive array and a mainlobe canceller, the proposed system is very efficient from the computational complexity. The advantage is from fact that the monopulse ratio of the proposed system does not depend on the adapted weights. Moreover, the proposed system can estimate the DOA of the target even for multiple mainlobe interferences since it does not need my kinds of mainlobe maintenance technique.
Keywords
Adaptive Array; Monopulse Angle Tracking; Adaptive Beanforming;
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