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In this paper, we address the problem of target detection in the presence of coherent (or fully correlated) signals, which can be due to multipath propagation effects or electronic attacks by smart jammers. To this end, we formulate the…

信号处理 · 电气工程与系统科学 2021-02-24 Sudan Han , Linjie Yan , Yuxuan Zhang , Pia Addabbo , Chengpeng Hao , Danilo Orlando

Mixed-resolution architectures, combining high-resolution (analog) data with coarsely quantized (e.g., 1-bit) data, are widely employed in emerging communication and radar systems to reduce hardware costs and power consumption. However, the…

信号处理 · 电气工程与系统科学 2025-08-29 Yaniv Mazor , Tirza Routtenberg

Millimeter-wave (MMW) imaging has a wide prospect in application of concealed weapons detection. We propose a circular-arc multiple-input multiple-output (MIMO) array scheme with uniformly spaced transmit and receive antennas along the…

信号处理 · 电气工程与系统科学 2021-03-01 Shiyong Li , Shuoguang Wang , Guoqiang Zhao , Houjun Sun

Frequency modulated continuous wave (FMCW) radar is emerging as a trendy radar system for synthetic aperture radar (SAR). This letter proposes a novel method for the extraction of the SAR image with the FMCW radar. The proposed method can…

信号处理 · 电气工程与系统科学 2020-10-01 Junhyeong Park , Dae-Hwan Jung , Seong-Ook Park

This paper considers object detection and 3D estimation using an FMCW radar. The state-of-the-art deep learning framework is employed instead of using traditional signal processing. In preparing the radar training data, the ground truth of…

计算机视觉与模式识别 · 计算机科学 2019-02-15 Guoqiang Zhang , Haopeng Li , Fabian Wenger

This paper derives a general expression for the Cram\'er-Rao bound (CRB) of wireless localization algorithms using range measurements subject to bias corruption. Specifically, the a priori knowledge about which range measurements are…

信息论 · 计算机科学 2011-11-10 Tao Wang

This paper focuses on the combined radar and communications problem and conducts a thorough analytical investigation on the effect of phase and frequency change on the communication and sensing functionality. First, we consider the…

信息论 · 计算机科学 2024-05-03 Tian Han , Rajitha Senanayake , Peter Smith , Jamie Evans , William Moran , Robin Evans

Dual function radar communications (DFRC) systems are attractive technologies for autonomous vehicles, which utilize electromagnetic waves to constantly sense the environment while simultaneously communicating with neighbouring devices. An…

信号处理 · 电气工程与系统科学 2021-12-15 Dingyou Ma , Nir Shlezinger , Tianyao Huang , Yimin Liu , Yonina C. Eldar

In order to meet the theoretically achievable imaging performance, calibration of modern radio interferometers is a mandatory challenge, especially at low frequencies. In this perspective, we propose a novel parallel iterative…

天体物理仪器与方法 · 物理学 2016-09-09 Martin Brossard , Mohammed Nabil El Korso , Marius Pesavento , Rémy Boyer , Pascal Larzabal , Stefan J. Wijnholds

In Frequency Modulated Continuous Waveform (FMCW) radar systems, the phase noise from the Phase-Locked Loop (PLL) can increase the noise floor in the Range-Doppler map. The adverse effects of phase noise on close targets can be mitigated if…

信号处理 · 电气工程与系统科学 2024-05-17 Jialun Kou , Marc Bauduin , André Bourdoux , Sofie Pollin

This paper introduces a novel framework for jointly estimating unknown radar channels and transmit signals in millimeter-wave (mmWave) Joint Radar-Communication (JRC) systems, a problem often referred to as dual-blind deconvolution. The…

信号处理 · 电气工程与系统科学 2025-01-09 Anis Hamadouche , Mathini Sellathurai

Conventional monostatic radar systems typically exhibit a trade-off between long-range target detection achieved through narrow beams and short-range wide-area surveillance employing broad beams. Realizing both functionalities within a…

信号处理 · 电气工程与系统科学 2025-05-05 P. Pon Surendar , K. Giridhar

This letter exploits moving arrays to enable nearfield multiple-input multiple-output (MIMO) sensing via a limited number of antenna elements. We consider a scenario where a base station (BS) is equipped with a uniform linear array (ULA) on…

信号处理 · 电气工程与系统科学 2024-10-15 Yilong Chen , Zixiang Ren , Xianghao Yu , Lei Liu , Jie Xu

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

Channel estimation for millimeter-wave (mmWave) massive MIMO with hybrid precoding is challenging, since the number of radio frequency (RF) chains is usually much smaller than that of antennas. To date, several channel estimation schemes…

信息论 · 计算机科学 2023-10-20 Zhen Gao , Linglong Dai , Chen Hu , Zhaocheng Wang

This paper investigates jointly optimal array geometry and waveform designs for active sensing. Specifically, we focus on minimizing the Cram\'er-Rao lower bound (CRB) of the angle of a single target in white Gaussian noise. We first find…

信号处理 · 电气工程与系统科学 2025-01-20 Ids van der Werf , Robin Rajamäki , Geert Leus

In this work, we develop and compare two innovative strategies for parameter estimation and radar detection of multiple point-like targets. The first strategy, which appears here for the first time, jointly exploits the maximum likelihood…

信号处理 · 电气工程与系统科学 2020-12-02 Pia Addabbo , Jun Liu , Danilo Orlando , Giuseppe Ricci

Multiple input multiple output (MIMO) radar is known for its superiority over conventional radar due to its antenna and waveform diversity. Although higher angular resolution, improved parameter identifiability, and better target detection…

信号处理 · 电气工程与系统科学 2019-01-30 Ehsan Tohidi , Mario Coutino , Sundeep Prabhakar Chepuri , Hamid Behroozi , Mohammad Mahdi Nayebi , Geert Leus

Inspired by the filter-bank (FB) concept that is normally used for multi-rate signal processing, an FB-enabled array technique of leaky-wave antennas (LWAs) is proposed and studied for creating full-band-locked frequency-scanning radar…

应用物理 · 物理学 2024-10-28 Dongze Zheng , Ke Wu

Recently, several array radar structures combined with sub-Nyquist techniques and corresponding algorithms have been extensively studied. Carrier frequency and direction-of-arrival (DOA) estimations of multiple narrow-band signals received…

信号处理 · 电气工程与系统科学 2018-10-29 Zhan Zhang , Ping Wei , Lijuan Deng , Huaguo Zhang