Super-resolution DOA Estimation Method for a Moving Target Equipped with a Millimeter-wave Radar Based on RD-ANM

被引：0

作者：

Shu Y. ^{[1
]}

Fu D. ^{[2
,3
]}

Chen Z. ^{[1
]}

Huang Y. ^{[4
]}

Zhang Y. ^{[5
]}

Tan X. ^{[1
]}

Tao J. ^{[5
]}

机构：

[1] School of Microelectronics and Communication Engineering, Chongqing University, Chongqing

[2] Hwa Create Technology Cop., Ltd., Beijing

[3] HWA-NCUT Radar RF Simulation Laboratory, Beijing

[4] State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing

[5] Key Laboratory of Underwater Acoustic Signal Processing of Ministry of Education, School of Information, Science and Engineering, Southeast University, Nanjing

来源：

Journal of Radars | 2023年 / 12卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Atomic norm; Direction of arrival for moving target; Millimeter-wave radar; Single snapshot; Super resolution;

D O I：

10.12000/JR23040

中图分类号：

学科分类号：

摘要：

Super-resolution Direction of Arrival (DOA) estimation is a critical problem related to vehicle-borne Millimeter-wave radars that needs to be solved to realize accurate target positioning and tracking. Based on the common conditions of limited array aperture, low snapshot, low signal-to-noise ratio, and coherent sources with respect to vehicle-borne scenarios, a super-resolution DOA estimation method for a moving target with an MMW radar based on Range-Doppler Atom Norm Minimize (RD-ANM) is proposed herein. First, an array for receiving signals in the range-Doppler domain is constructed based on the radar echo of the moving target. Then, the compensation vector for the Doppler coupling phase of the moving target is designed to reduce the influence of target motion on DOA estimation. Finally, a multitarget super-resolution DOA estimation method based on the atomic norm framework is proposed herein. Compared to the existing DOA estimation algorithm, the proposed algorithm can achieve higher angular resolution and estimation accuracy owing to low signal-to-noise ratio and single snapshot processing conditions, as well as robust performance in processing coherent sources without sacrificing array aperture. The effectiveness of the proposed algorithm is proven via theoretical analyses, numerical simulations, and experiments. ©The Author(s) 2023. This is an open access article under the CC-BY 4.0 License.

引用

页码：986 / 999

页数：13

共 24 条

[1]

ENGELS F, HEIDENREICH P, ZOUBIR A M, Et al., Advances in automotive radar: A framework on computationally efficient high-resolution frequency estimation[J], IEEE Signal Processing Magazine, 34, 2, pp. 36-46, (2017)

[2]

GAMBA J., Fundamentals of Radar Systems[M], GAMBA J. Radar Signal Processing for Autonomous Driving, pp. 1-14, (2020)

[3]

LI Xinrong, WANG Xiaodong, YANG Qing, Et al., Signal processing for TDM MIMO FMCW millimeter-wave radar sensors[J], IEEE Access, 9, pp. 167959-167971, (2021)

[4]

WANG Yongliang, DING Qianjun, LI Rongfeng, Adaptive Array Processing, (2009)

[5]

YARDIBI T, Jian LI, STOICA P, Et al., Source localization and sensing: A nonparametric iterative adaptive approach based on weighted least squares[J], IEEE Transactions on Aerospace and Electronic Systems, 46, 1, pp. 425-443, (2010)

[6]

WANG Yongliang, CHEN Hui, PENG Yingning, Et al., Spatial Spectrum Estimation Theory and Algorithm, (2004)

[7]

YANG Zai, XIE Lihua, ZHANG Cishen, A discretization-free sparse and parametric approach for linear array signal processing[J], IEEE Transactions on Signal Processing, 62, 19, pp. 4959-4973, (2014)

[8]

WU Xiaohuan, ZHU Weiping, YAN Jun, A toeplitz covariance matrix reconstruction approach for direction-of-arrival estimation[J], IEEE Transactions on Vehicular Technology, 66, 9, pp. 8223-8237, (2017)

[9]

ZHANG Zhe, WANG Yue, TIAN Zhi, Efficient two-dimensional line spectrum estimation based on decoupled atomic norm minimization[J], Signal Processing, 163, pp. 95-106, (2019)

[10]

LU Mingjiu, MA Jianchao, WEI Xu, Et al., Two-dimensional Range-Doppler estimation method for high frequency radar based on matrix atomic norm[J], Acta Electronica Sinica, 50, 5, pp. 1150-1158, (2022)

← 1 2 3 →