Hybrid Ordinary-Welsch Function Based Robust Matrix Completion for MIMO radar

Hao Nan Sheng, Zhi-yong Wang*, Zhaofeng Liu, Hing Cheung So

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Abstract

In this paper, we consider a sub-Nyquist sampled multiple-input multiple-output (MIMO) radar scenario where the observations are contaminated by impulsive non-Gaussian clutter, which introduces outliers. To recover the missing data, we propose a robust matrix completion (MC) method with a regularizer that acts on outliers. This regularizer whose solution is unbiased, sparse and continuous, is generated by the hybrid ordinary-Welsch (HOW) function, aiming to classify each measurement as normal, semi-contaminated or contaminated, and then handle it appropriately. Then proximal block coordinate descent (BCD) is leveraged to tackle the HOW-based MC problem and the convergence property and computational cost of the developed algorithm are analyzed. Experimental results validate the superior performance of our method compared to existing approaches in terms of MC and direction-of-arrival estimation accuracies as well as runtime in the presence of Gaussian mixture noise and K-distributed clutter. Our codes are available at https://github.com/ShuDun23/robust-MIMO-MC. © 2024 IEEE
Original languageEnglish
Pages (from-to)3950 - 3962
JournalIEEE Transactions on Aerospace and Electronic Systems
Volume61
Issue number2
Online published8 Nov 2024
DOIs
Publication statusPublished - Apr 2025

Funding

The work described in this paper was supported by the Research Grant of Shenzhen Research Institute, City University of Hong Kong, Shenzhen, China [Project No. R-IND25501], and the Research Grants Council of the Hong Kong Special Administrative Region, China [Project No. CityU 11207922].

Research Keywords

  • MIMO radar
  • outlier
  • robust low-rank matrix completion
  • target localization
  • Welsch function

Publisher's Copyright Statement

  • COPYRIGHT TERMS OF DEPOSITED POSTPRINT FILE: © 2024 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Sheng, H. N., Wang, Z., Liu, Z., & So, H. C. (2024). Hybrid Ordinary-Welsch Function Based Robust Matrix Completion for MIMO radar. IEEE Transactions on Aerospace and Electronic Systems. Advance online publication. https://doi.org/10.1109/TAES.2024.3494766

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