二维混合MIMO相控阵雷达的DOA估计算法

doi:10.3969/j.issn.1001-2400.2017.03.027

Abstract

Abstract:

Aiming at the direction of arrival(DOA) estimation problem of the Two-Dimensional Hybrid MIMO(Multiple-Input Multiple-Output) Phased-array Radar, an effective solution is proposed based on transmit weight optimization and Unitary ESPRIT of the virtual array. First, we build the receiving signal model. Then a transmit weight vector is designed by convex optimization to simultaneously construct the receiving subarray rotational invariance and control the side lobe of the pattern of Two-Dimensional Hybrid MIMO Phased-array Radar to improve the DOA estimation accuracy. Finally, the Unitary ESPRIT is exploited to estimate the azimuth and elevation of Two-Dimensional Hybrid MIMO Phased-array Radar to decrease the calculation load. Numerical simulations show that our approach can realize DOA estimation of the Two-Dimensional Hybrid MIMO Phased-array Radar.

Key words: two-dimensional hybrid MIMO phased-array radar, unitary ESPRIT, DOA estimation, convex optimization

LIU Shuaiqi;WANG Buhong;LI Longjun;LI Xia;CAO Shuai. DOA estimation method for two-dimensional hybrid MIMO phased-array radar[J].Journal of Xidian University, 2017, 44(3): 157-163.

References

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DOA estimation method for two-dimensional hybrid MIMO phased-array radar

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