非平稳噪声下相干信源MIMO雷达角度估计

doi:10.3969/j.issn.1001-2400.2018.04.030

Abstract

Abstract:

In order to solve the problem of MIMO radar angle estimation under non-stationary noise, multipath effect and coherent electronic interference, an angle estimation method based on oblique projection operator and Teoplitz matrix reconstruction is proposed. Through the reconstruction of Toeplitz, the nonstationary noise is transformed into Gauss white noise, and then the oblique projection operator is used to exclusion of incoherent sources, and the angular estimation of coherent source is realized. This method has no array aperture loss, can be applied to any array structure, and the ability of overload and element saving of the source is stronger. Finally, simulation results indicate that the proposed algorithm is more suitable for low SNR than the multistage Wiener filter algorithm.

Key words: coherent sources, non-stationary noise, multiple input multiple output radar, angle estimation

GONG Jian;LOU Shuntian;GUO Yiduo;ZHANG Weitao. MIMO radar angle estimation for coherent sources under non-stationary noise[J].Journal of Xidian University, 2018, 45(4): 174-180.

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MIMO radar angle estimation for coherent sources under non-stationary noise

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