零点约束的MIMO雷达最小二乘误差方向图合成

doi:10.3969/j.issn.0255-8297.2011.06.004

Journal of Applied Sciences ›› 2011, Vol. 29 ›› Issue (6): 571-576.doi: 10.3969/j.issn.0255-8297.2011.06.004

• Signal and Information Processing • Previous Articles Next Articles

Least Square Error Synthesis with Nulls for MIMO Radar Beam Pattern

School of Electronic Engineering and Optoelectronic Technology, Nanjing University of Science and Technology, Nanjing 210094, China

Received:2010-07-01 Revised:2010-12-28 Online:2011-11-30 Published:2011-11-28

Abstract

Abstract:

For multi-input multi-output(MIMO) radars, grating lobes appear in the transmitting pattern when the spacing between transmitting antennas and that between receiving antennas are related with some particular values. In this case, high sidelobes occur in the synthetic pattern obtained by multiplying the transmitting pattern with the receiving pattern. This paper analyzes the cause of high sidelobes mathematically, and proposes a novel algorithm that can synthesize a least square error (LSE) receiving pattern with nulls to suppress high sidelobes for MIMO radar. The optimum weighting with nulls is obtained with the Lagrange multiplier method. The LSE receiving pattern is synthesized to solve the high sidelobe problem. Simulation results verify that high sidelobes in the synthesized pattern can effectively be suppressed using the obtained weightings.

Key words: multi-input multi-output(MIMO), radar, least square error (LSE), pattern synthesis

CLC Number:

TN958

ZHANG Yu, WANG Jian-xin. Least Square Error Synthesis with Nulls for MIMO Radar Beam Pattern[J]. Journal of Applied Sciences, 2011, 29(6): 571-576.

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URL: https://www.jas.shu.edu.cn/EN/10.3969/j.issn.0255-8297.2011.06.004

https://www.jas.shu.edu.cn/EN/Y2011/V29/I6/571

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Least Square Error Synthesis with Nulls for MIMO Radar Beam Pattern

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