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We present a low-complexity widely separated multiple-input-multiple-output (WS-MIMO) radar that samples the signals at each of its multiple receivers at reduced rates. We process the low-rate samples of all transmit-receive chains at each…

信号处理 · 电气工程与系统科学 2023-08-31 Shunqiao Sun , Yunqiao Hu , Kumar Vijay Mishra , Athina P. Petropulu

This paper presents a general technique for the joint Direction-of-Arrival (DoA) and Time-of-Arrival (ToA) estimation in multipath environments. The proposed ultra-wideband technique is based on phase-mode expansions and the use of nearly…

信号处理 · 电气工程与系统科学 2023-04-28 Alejandro Ramírez-Arroyo , Antonio Alex-Amor , Pablo Padilla , Juan F. Valenzuela-Valdés

In this work we consider a multiple-input multiple-output (MIMO) dual-function radar-communication (DFRC) system, which senses multiple spatial directions and serves multiple users. Upon resorting to an orthogonal frequency division…

信号处理 · 电气工程与系统科学 2022-03-09 Jeremy Johnston , Luca Venturino , Emanuele Grossi , Marco Lops , Xiaodong Wang

Small scale fading makes the wireless channel gain vary significantly over small distances and in the context of classical communication systems it can be detrimental to performance. But in the context of mobile robot (MR) wireless…

机器人学 · 计算机科学 2018-05-22 Daniel Bonilla Licea , Des McLernon , Mounir Ghogho , Edmond Nurellari , Syed Ali Raza Zaidiz

Radar sensors are gradually becoming a wide-spread equipment for road vehicles, playing a crucial role in autonomous driving and road safety. The broad adoption of radar sensors increases the chance of interference among sensors from…

信号处理 · 电气工程与系统科学 2021-11-09 Nicolae-Cătălin Ristea , Andrei Anghel , Radu Tudor Ionescu

This paper studies the massive MIMO full-duplex relaying (MM-FDR), where multiple source-destination pairs communicate simultaneously with the help of a common full-duplex relay equipped with very large antenna arrays. Different from the…

信息论 · 计算机科学 2016-01-20 Xiaochen Xia , Dongmei Zhang , Kui Xu , Wenfeng Ma , Youyun Xu

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

The ability of Multiple-Input Multiple-Output (MIMO) radar systems to adapt waveforms across antennas allows flexibility in the transmit beampattern design. In cognitive radar, a popular cost function is to minimize the deviation against an…

信号处理 · 电气工程与系统科学 2019-06-26 Khaled Alhujaili , Vishal Monga , Muralidhar Rangaswamy

In the past ten years, there have been tremendous research progresses on massive MIMO systems, most of which stand from the communications viewpoint. A new trend of investigating massive MIMO, especially for the sparse scenario like…

信号处理 · 电气工程与系统科学 2019-10-23 Mingjin Wang , Feifei Gao , Shi Jin , Hai Lin

In this paper, we extend our method [1] for FMCW radar mutual interference mitigation (IM) based on the discrete fractional Fourier transform (DFrFT). Firstly, we propose a radar signal processing chain including our DFrFT-based IM for…

信号处理 · 电气工程与系统科学 2026-05-01 Christian Oswald , Josef Kulmer , Franz Pernkopf

With the intensiffcation of population aging and increasing burden of chronic diseases, the demand for vital signs monitoring is becoming increasingly urgent. A key challenge facing current non-contact detection technologies using…

信号处理 · 电气工程与系统科学 2025-10-20 Heyao Zhu , Yimeng Zhao , Zirui Zhang , Huansheng Yi , Chenbin Gao , Canhua Xu , Jianqi Wang , Fugui Qi

The prompt and accurate recognition of Continuous Human Activity (CHAR) is critical in identifying and responding to health events, particularly fall risk assessment. In this paper, we examine a multi-antenna radar system that can process…

图像与视频处理 · 电气工程与系统科学 2023-04-14 John Kobak , Bennett J. Richman , LaJuan Washington , Syed A. Hamza

We consider multitarget detection and tracking problem for a class of multipath detection system where one target may generate multiple measurements via multiple propagation paths, and the association relationship among targets,…

计算机视觉与模式识别 · 计算机科学 2018-12-12 Hua Lan , Shuai Sun , Zengfu Wang , Quan Pan , Zhishan Zhang

One-bit sampling has emerged as a promising technique in multiple-input multiple-output (MIMO) radar systems due to its ability to significantly reduce data volume and processing requirements. Nevertheless, current detection methods have…

信号处理 · 电气工程与系统科学 2024-04-29 Yu-Hang Xiao , David Ramírez , Lei Huang , Xiao Peng Li , Hing Cheung So

Target localization based on frequency diverse array (FDA) radar has lately garnered significant research interest. A linear frequency offset (FO) across FDA antennas yields a range-angle dependent beampattern that allows for joint…

信号处理 · 电气工程与系统科学 2022-07-27 Wanghan Lv , Kumar Vijay Mishra , Shichao Chen

A transmitted, unknown radar signal is observed at the receiver through more than one path in additive noise. The aim is to recover the waveform of the intercepted signal and to simultaneously estimate the direction of arrival (DOA). We…

统计理论 · 数学 2011-03-30 Tabea Rebafka , Céline Lévy-Leduc , Maurice Charbit

Automatic modulation recognition (AMR) is a key technology in non-cooperative communication systems, aiming to identify the modulation scheme from signals without prior information. Deep learning (DL)-based methods have gained wide…

信号处理 · 电气工程与系统科学 2025-12-05 Yunpeng Qu , Yazhou Sun , Bingyu Hui , Jintao Wang , Jian Wang

Multiple-Input Multiple-Output (MIMO) radars provide various advantages as compared to conventional radars. Among these advantages, improved angular diversity feature is being explored for future fully autonomous vehicles. Improved angular…

信号处理 · 电气工程与系统科学 2022-08-19 Hamza Malik , Jehanzeb Burki , Muhammad Zeeshan Mumtaz

Movable-antenna (MA) arrays are envisioned as a promising technique for enhancing secrecy performance in wireless communications by leveraging additional spatial degrees of freedom. However, when the eavesdropper is located in the same…

信号处理 · 电气工程与系统科学 2025-07-01 Chu Li , Marjan Boloori , Eduard Jorswieck , Aydin Sezgin

In the future commercial and military communication systems, anti-jamming remains a critical issue. Existing homogeneous or heterogeneous arrays with a limited degrees of freedom (DoF) and high consumption are unable to meet the…

信息论 · 计算机科学 2023-10-17 Kaizhi Huang , Wenyu Jiang , Yajun Chen , Liang Jin , Qingqing Wu , Xiaoling Hu