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In smart city development, the automatic detection of structures and vehicles within urban or suburban areas via array radar (airborne or vehicle platforms) becomes crucial. However, the inescapable multipath effect adversely affects the…

信号处理 · 电气工程与系统科学 2024-07-26 Yizhen Jia , Jie Cheng , Wen-Qin Wang , Hui Chen

Radar simulation is a promising way to provide data-cube with effectiveness and accuracy for AI-based approaches to radar applications. This paper develops a channel simulator to generate frequency-modulated continuous-wave (FMCW) waveform…

信号处理 · 电气工程与系统科学 2023-07-19 Yuan Liu , Moein Ahmadi , Johann Fuchs , Mohammad Alaee-Kerahroodi , M. R. Bhavani Shankar

Multi-platform radar networks (MPRNs) are an emerging sensing technology due to their ability to provide improved surveillance capabilities over plain monostatic and bistatic systems. The design of advanced detection, localization, and…

信号处理 · 电气工程与系统科学 2023-08-15 Angela Marino , Giovanni Soldi , Domenico Gaglione , Augusto Aubry , Paolo Braca , Antonio De Maio , Peter Willett

Millimeter-wave (mmWave) OFDM radar equipped with rainbow beamforming, enabled by phase-time arrays (PTAs), provides wide-angle coverage and is well-suited for fast real-time target detection and tracking. However, accurate detection of…

信号处理 · 电气工程与系统科学 2026-02-10 Qiushi Liang , Yeyue Cai , Jianhua Mo , Meixia Tao

In this work, the feasibility of spectrum sharing between a multiple-input multiple-output (MIMO) radar system (RS) and a MIMO cellular system (CS), comprising of a full duplex (FD) base station (BS) serving multiple downlink and uplink…

信号处理 · 电气工程与系统科学 2019-04-25 Sudip Biswas , Keshav Singh , Omid Taghizadeh , Tharmalingam Ratnarajah

Frequency-modulated continuous wave (FMCW) radar with inter-chirp coding produces high side-lobes in the Doppler and range dimensions of the radar's ambiguity function. The high side-lobes may cause miss-detection due to masking between…

信号处理 · 电气工程与系统科学 2024-02-27 Zahra Esmaeilbeig , Arindam Bose , Mojtaba Soltanalian

Millimeter Wave (mmWave) massive Multiple Input Multiple Output (MIMO) systems realizing directive beamforming require reliable estimation of the wireless propagation channel. However, mmWave channels are characterized by high variability…

信息论 · 计算机科学 2019-06-07 Evangelos Vlachos , George C. Alexandropoulos , John Thompson

Micro-Doppler signatures contain considerable information about target dynamics. However, the radar sensing systems are easily affected by noisy surroundings, resulting in uninterpretable motion patterns on the micro-Doppler spectrogram.…

信号处理 · 电气工程与系统科学 2022-05-04 Chong Tang , Wenda Li , Shelly Vishwakarma , Fangzhan Shi , Simon Julier , Kevin Chetty

Radar sensors operating in the mmWave frequency range face challenges when used as indoor perception and imaging devices, primarily due to noise and multipath signal distortions. These distortions often impair the sensors' ability to…

信号处理 · 电气工程与系统科学 2026-04-09 Stefan Hägele , Fabian Seguel , Driton Salihu , Marsil Zakour , Eckehard Steinbach

Radar-based sensing is a promising privacy-preserving alternative to cameras and wearables in settings such as long-term care. Yet detecting quasi-static presence (lying, sitting, or standing with only subtle micro-motions) is difficult for…

信号处理 · 电气工程与系统科学 2026-01-27 Huy Trinh , Elliot Creager , George Shaker

Conventional multistatic radar systems using microwave and millimeter-wave (mm-wave) frequencies seek to reconstruct the target in the imaging domain, employing many transmitting and receiving antenna elements. These systems are suboptimal,…

应用物理 · 物理学 2018-06-20 Ali Molaei , Juan Heredia-Juesas , Galia Ghazi , James Vlahakis , Jose Martinez-Lorenzo

In this work we propose novel decision feedback (DF) detection algorithms with error propagation mitigation capabilities for multi-input multi-output (MIMO) spatial multiplexing systems based on multiple processing branches. The novel…

信息论 · 计算机科学 2013-04-18 R. C. de Lamare , D. Le Ruyet

Modern radar systems are designed to have high Doppler tolerance to detect fast-moving targets. This means range and Doppler estimations are inevitably coupled, opening pathways to concealing objects by imprinting artificial Doppler…

信号处理 · 电气工程与系统科学 2023-05-17 V. Kozlov , D. Vovchuk , P. Ginzburg

We consider a synthetic aperture radar (SAR) system that uses ultra-narrowband continuous waveforms (CW) as an illumination source. Such a system has many practical advantages, such as the use of relatively simple, low-cost and low-power…

仪器与探测器 · 物理学 2013-02-22 Ling Wang , Birsen Yazici

We address target detection in a single Delay-Doppler cell using spatially distributed two-channel passive radars. An unknown illuminator of opportunity (IO) is assumed to emit a waveform lying in a known low-dimensional subspace (e.g.,…

信号处理 · 电气工程与系统科学 2025-10-03 Nandan Sriranga , Haodong Yang , Venkata Gandikota , Pramod K. Varshney

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

In this study, a novel transmission scheme is proposed to serve radar-sensing and communication objectives at the same time and allocated bandwidth. The proposed transmitted frame non-orthogonally superimposes two different waveforms, which…

信号处理 · 电气工程与系统科学 2020-07-14 Mehmet Mert Sahin , Huseyin Arslan

In this paper, we introduce a novel algorithm that can dramatically reduce the number of antenna elements needed to accurately predict the direction of arrival (DOA) for multiple input multiple output (MIMO) radar. The new proposed…

信号处理 · 电气工程与系统科学 2020-09-16 Udaya Sampath K. P. Miriya Thanthrige , Aya Mostafa Ahmed , Aydin Sezgin

Correctly detecting radar targets is usually challenged by clutter and waveform distortion. An additional difficulty stems from the relative proximity of several targets, the latter being perceived as a single target in the worst case, or…

人工智能 · 计算机科学 2026-02-11 Martin Bauw

Designing Doppler-resilient unimodular discrete phase-coded waveforms (DPWs) with low delay-Doppler sidelobes is critical for multiple-input multiple-output (MIMO) radar. Existing block coordinate descent (BCD) methods suffer from high…

信号处理 · 电气工程与系统科学 2026-04-29 Junpeng Ma , Yuke Li , Junbo Wang , Yongxing Zhou