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| Steering-Invariant Constant Beamwidth Beamforming with SOCP Constraints |
| Xing Gao-xiang; Cai Zhi-ming |
| Dept. of Electronics Engineering, Naval University of Engineering, Wuhan 430033, China |
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Abstract This paper introduces a steering-invariant constant beamwidth beamforming algorithm with Second-Order Cone Programming (SOCP) constraints. The optimizing criterion of the proposed algorithm is suppressing the designed sidelobe level utmost while keeping the mean-squared error between the designed mainlobe and the corresponding reference mainlobe on all look directions minimizing. The constrained optimizing formula can be reformed to a standard SOCP fashion and be solved with SeDuMi, an optimization toolbox. It is shown with simulation that the proposed algorithm can obtain the steering-invariant constant beamwidth beampattern effectively under the designed main-lobe direction of ±60°.
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Received: 23 June 2008
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2009, Vol. 31 
