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In this paper, we exploit the spiked covariance structure of the clutter plus noise covariance matrix for radar signal processing. Using state-of-the-art techniques high dimensional statistics, we propose a nonlinear shrinkage-based…

信号处理 · 电气工程与系统科学 2023-02-07 Shashwat Jain , Vikram Krishnamurthy , Muralidhar Rangaswamy , Bosung Kang , Sandeep Gogineni

The generalized likelihood ratio test (GLRT) is used to derive a detector for solid sub-pixel targets in hyperspectral imagery. A closed-form solution is obtained that optimizes the replacement target model when the background is a…

计算机视觉与模式识别 · 计算机科学 2018-05-01 James Theiler , Beate Zimmer , Amanda Ziemann

Since the seminal paper by Marzetta from 2010, the Massive MIMO paradigm in communication systems has changed from being a theoretical scaled-up version of MIMO, with an infinite number of antennas, to a practical technology. Its key…

信号处理 · 电气工程与系统科学 2020-01-16 Stefano Fortunati , Luca Sanguinetti , Fulvio Gini , Maria S. Greco , Braham Himed

This paper addresses robust waveform design for multiple-input-multiple-output (MIMO) radar detection. A probabilistic model is proposed to describe the target uncertainty. Considering that waveform design based on maximizing the…

信号处理 · 电气工程与系统科学 2022-04-12 Xuyang Wang , Bo Tang , Ming Zhang

We present a maximum likelihood (ML) algorithm that is fast enough to detect gamma-ray transients in real time on low-performance processors often used for space applications. We validate the routine with simulations and find that, relative…

高能天体物理现象 · 物理学 2023-08-09 Matthew Kerr , Wade Duvall , Neil Johnson , Richard Woolf , J. Eric Grove , Hannah Kim

In this paper, High-dimensional data analysis methods are proposed to deal with random matrix which is composed by the real data from power network before and after the fault. The mean spectral radius (MSR) of non-Hermitian random matrices…

应用统计 · 统计学 2015-03-31 Y. Cao , L. Cai , C. Qiu , J. Gu , X. He , Q. Ai , Z. Jin

This paper investigates the problem of adaptive detection of distributed targets in power heterogeneous clutter. In the considered scenario, all the data share the identical structure of clutter covariance matrix, but with varying and…

统计方法学 · 统计学 2024-10-10 Daipeng Xiao , Weijian Liu , Jun Liu , Lingyan Dai , Xueli Fang , Jianjun Ge

The joint adaptive detection of multiple point-like targets in scenarios characterized by different clutter types is still an open problem in the radar community. In this paper, we provide a solution to this problem by devising detection…

信号处理 · 电气工程与系统科学 2023-04-26 Linjie Yan , Sudan Han , Chengpeng Hao , Danilo Orlando , Giuseppe Ricci

This paper addresses a critical preliminary step in radar signal processing: detecting the presence of a radar signal and robustly estimating its bandwidth. Existing methods which are largely statistical feature-based approaches face…

信号处理 · 电气工程与系统科学 2024-03-01 Akila Pemasiri , Zi Huang , Fraser Williams , Ethan Goan , Simon Denman , Terrence Martin , Clinton Fookes

Modern object detectors usually suffer from low accuracy issues, as foregrounds always drown in tons of backgrounds and become hard examples during training. Compared with those proposal-based ones, real-time detectors are in far more…

计算机视觉与模式识别 · 计算机科学 2018-04-13 Hao Yu , Zhaoning Zhang , Zheng Qin , Hao Wu , Dongsheng Li , Jun Zhao , Xicheng Lu

Techniques have been proposed to estimate unknown antenna impedance due to time-varying near-field loading conditions at multiple-input single-output (MISO) receivers. However, it remains unclear when a change occurs and impedance…

信息论 · 计算机科学 2022-11-08 Shaohan Wu

Ground penetrating radar (GPR) is one of the most popular and successful sensing modalities that has been investigated for landmine and subsurface threat detection. Many of the detection algorithms applied to this task are supervised and…

计算机视觉与模式识别 · 计算机科学 2016-12-13 Daniël Reichman , Leslie M. Collins , Jordan M. Malof

In this paper, we study the joint detection and angle estimation problem for beamspace multiple-input multiple-output (MIMO) systems with multiple random jamming targets. An iterative low-complexity generalized likelihood ratio test (GLRT)…

信号处理 · 电气工程与系统科学 2025-01-10 Pengguang Du , Cheng Zhang , Changwei Zhang , Zhilei Zhang , Yongming Huang

This paper presents a real-time non-probabilistic detection mechanism to detect load-redistribution (LR) attacks against energy management systems (EMSs). Prior studies have shown that certain LR attacks can bypass conventional bad data…

系统与控制 · 电气工程与系统科学 2021-01-05 Ramin Kaviani , Kory W. Hedman

The detection and removal of landmines is a complex and risky task that requires advanced remote sensing techniques to reduce the risk for the professionals involved in this task. In this paper, we propose a novel synthetic dataset for…

计算机视觉与模式识别 · 计算机科学 2025-03-03 Emanuele Vivoli , Lorenzo Capineri , Marco Bertini

This paper is concerned with a binary detection problem over a non-secure network. To satisfy the communication rate constraint and against possible cyber attacks, which are modeled as deceptive signals injected to the network, a likelihood…

系统与控制 · 计算机科学 2015-07-28 Jian-Ya Ding , Keyou You , Shiji Song , Cheng Wu

The use of robotics in humanitarian demining increasingly involves computer vision techniques to improve landmine detection capabilities. However, in the absence of diverse and realistic datasets, the reliable validation of algorithms…

Motivated by applications in unmanned aerial based ground penetrating radar for detecting buried landmines, we consider the problem of imaging small point like scatterers situated in a lossy medium below a random rough surface. Both the…

信号处理 · 电气工程与系统科学 2023-03-24 Arnold D. Kim , Chrysoula Tsogka

In the present work, a reinforcement learning (RL) based adaptive algorithm to optimise the transmit beampattern for a colocated massive MIMO radar is presented. Under the massive MIMO regime, a robust Wald type detector, able to guarantee…

信号处理 · 电气工程与系统科学 2022-12-20 Francesco Lisi , Stefano Fortunati , Maria Sabrina Greco , Fulvio Gini

Real-world measurements often comprise a dominant signal contaminated by a noisy background. Robustly estimating the dominant signal in practice has been a fundamental statistical problem. Classically, mixture models have been used to…

统计计算 · 统计学 2026-05-20 Ananyabrata Barua , Ayanendranath Basu