2-D DOA Robust Estimation of Echo Signals Based on Multiple Satellites Passive Radar in the Presence of Alpha Stable Distribution Noise

Mingqian Liu; Junlin Zhang; Jie Tang; Fan Jiang; Peng Liu; Fengkui Gong; Nan Zhao

doi:10.1109/ACCESS.2019.2894997

IEEE Access (Jan 2019)

2-D DOA Robust Estimation of Echo Signals Based on Multiple Satellites Passive Radar in the Presence of Alpha Stable Distribution Noise

Mingqian Liu,
Junlin Zhang,
Jie Tang,
Fan Jiang,
Peng Liu,
Fengkui Gong,
Nan Zhao

Affiliations

Mingqian Liu: ORCiD; State Key Laboratory of Integrated Service Network, Xidian University, Xi’an, China
Junlin Zhang: State Key Laboratory of Integrated Service Network, Xidian University, Xi’an, China
Jie Tang: ORCiD; School of Electronic and Information Engineering, South China University of Technology, Guangzhou, China
Fan Jiang: Shaanxi Key Laboratory of Information Communication Network and Security, Xi’an University of Posts and Telecommunications, Xi’an, China
Peng Liu: State Key Laboratory of Integrated Service Network, Xidian University, Xi’an, China
Fengkui Gong: ORCiD; State Key Laboratory of Integrated Service Network, Xidian University, Xi’an, China
Nan Zhao: ORCiD; Shaanxi Key Laboratory of Information Communication Network and Security, Xi’an University of Posts and Telecommunications, Xi’an, China

DOI: https://doi.org/10.1109/ACCESS.2019.2894997
Journal volume & issue: Vol. 7
pp. 16032 – 16042

Abstract

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In this paper, the low-performance problem of two-dimensional (2-D) direction of arrival (DOA) estimation with non-Gaussian noise in low signal-to-noise ratio is addressed. For echo signals of the multiple satellites' passive radar, a robust 2-D DOA estimation method based on improved zero-order statistics fractional low-order cyclic correlation (IZOS-FLOCC) under the alpha-stable distribution noise environment is proposed. First, we employ a uniform plane array to establish the model of received signals. Then, the IZOS-FLOCC of the echo signals is constructed based on the cyclostationarity. Finally, the IZOS-FLOCC of signals subspace is obtained by the optimization method. Moreover, we derive the Cramer-Rao low bound of the 2-D DOA estimation of echo signals based on multiple satellites' passive radar in the presence of alpha-stable distribution noise. The simulation results show that the proposed method can effectively estimate the 2-D DOA of echo signals based on multi-satellite radiation sources in the alpha-stable distribution noise environment and achieve better performance than the existing methods.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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