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This study proposes a radar-centric integrated sensing and communication (ISAC) system utilizing a two-layer modulation scheme for vehicular networks. Frequency-modulated continuous wave (FMCW) chirps are jointly modulated via phase…

信号处理 · 电气工程与系统科学 2026-05-25 Murat Temiz , Colin Horne , Matthew A. Ritchie , Christos Masouros

This paper tackles the problem of millimeter-Wave (mmWave) channel estimation in massive MIMO communication systems. A new Bayes-optimal channel estimator is derived using recent advances in the approximate belief propagation (BP) Bayesian…

信息论 · 计算机科学 2019-03-07 Faouzi Bellili , Foad Sohrabi , Wei Yu

Accurate targets detection and tracking with mmWave radar is a key sensing capability that will enable more intelligent systems, create smart, efficient, automated system. This paper proposes an end-to-end detection-estimation-track…

信号处理 · 电气工程与系统科学 2025-07-30 Jiang Zhu , Menghuai Xu , Ruohai Guo , Fangyong Wang , Guangying Zheng , Fengzhong Qu

In the automotive sector, both radars and wireless communication are susceptible to interference. However, combining the radar and communication systems, i.e., radio frequency (RF) communications and sensing convergence, has the potential…

信息论 · 计算机科学 2020-01-14 Canan Aydogdu , Musa Furkan Keskin , Nil Garcia , Henk Wymeersch , Daniel W. Bliss

Millimeter wave radars are popularly used in last-mile radar-based defense systems. Detection of low-altitude airborne target using these radars at low-grazing angles is an important problem in the field of electronic warfare, which becomes…

信号处理 · 电气工程与系统科学 2019-02-15 Martins Ezuma , Ozgur Ozdemir , Chethan Kumar Anjinappa , Wahab Ali Gulzar , Ismail Guvenc

Recent advancements have underscored the relevance of low-resolution analog-to-digital converters (ADCs) in integrated sensing and communication (ISAC) systems. Nevertheless, their specific impact on hybrid radar fusion (HRF) remains…

信号处理 · 电气工程与系统科学 2026-01-27 Akhileswar Chowdary , Ahmad Bazzi , Marwa Chafii

In this paper, we derive the information theoretic performance bounds on communication data rates and errors in parameter estimation, for a joint radar and communication (JRC) system. We assume that targets are semi-passive, i.e. they use…

信息论 · 计算机科学 2021-07-08 Ganesan Thiagarajan , Sanjeev Gurugopinath

We propose a fast and near-optimal approach to joint channel-estimation, equalization, and decoding of coded single-carrier (SC) transmissions over frequency-selective channels with few-bit analog-to-digital converters (ADCs). Our approach…

信息论 · 计算机科学 2019-01-30 Peng Sun , Zhongyong Wang , Robert W. Heath , Philip Schniter

Mutual interference in automotive radar scenarios is going to become a major concern as the density of vehicles with radar sensors in the roads increases. The present work tackles the problem of frequency modulated continuous wave (FMCW) to…

信号处理 · 电气工程与系统科学 2021-06-11 Aitor Correas-Serrano , María A. González-Huici

In this paper, we propose an oversampling based low-resolution aware least squares channel estimator for large-scale multiple-antenna systems with 1-bit analog-to-digital converters on each receive antenna. To mitigate the information loss…

信号处理 · 电气工程与系统科学 2019-05-15 Z. Shao , L. Landau , R. de Lamare

Direction of Arrival (DoA) estimation using Sparse Linear Arrays (SLAs) has recently gained considerable attention in array processing thanks to their capability to provide enhanced degrees of freedom in resolving uncorrelated source…

信号处理 · 电气工程与系统科学 2021-12-01 Saeid Sedighi , M. R. Bhavani Shankar , Mojtaba Soltanalian , Björn Ottersten

One-bit digital-to-analog converters (DACs) are a practical and promising solution for reducing cost and power consumption in massive multiple-input multiple-output (MIMO) systems. However, the one-bit precoding problem is NP-hard and even…

信号处理 · 电气工程与系统科学 2023-03-21 Ly V. Nguyen , Lu Liu , Nguyen Linh-Trung , A. Lee Swindlehurst

This paper focuses on channel estimation for mmWave MIMO systems with 1-bit spatial sigma-delta analog-to-digital converters (ADCs). The channel estimation performance with 1-bit spatial sigma-delta ADCs depends on the quantization noise…

信号处理 · 电气工程与系统科学 2020-10-26 R. S. Prasobh Sankar , Sundeep Prabhakar Chepuri

We develop a method to jointly estimate the carrier frequency offset (CFO) and the narrowband channel in millimeter wave (mmWave) MIMO systems operating with one-bit analog-to-digital converters (ADCs). We assume perfect timing…

信息论 · 计算机科学 2018-06-06 Nitin Jonathan Myers , Robert W. Heath

The estimation of millimeter wave (mmWave) massive multiple input multiple output (MIMO) channels becomes compelling when one-bit analog to digital converters (ADCs) are utilized. Furthermore, as the number of antenna increases, pilot…

信号处理 · 电气工程与系统科学 2024-01-04 Erhan Karakoca , Hasan Nayir , Ali Görçin , Khalid Qaraqe

In this paper, we present our spectrum sharing algorithm between a multi-input multi-output (MIMO) radar and Long Term Evolution (LTE) cellular system with multiple base stations (BS)s. We analyze the performance of MIMO radars in detecting…

网络与互联网体系结构 · 计算机科学 2014-08-29 Haya Shajaiah , Ahmed Abdelhadi , Charles Clancy

Channel estimation at millimeter wave (mmWave) is challenging when large antenna arrays are used. Prior work has leveraged the sparse nature of mmWave channels via compressed sensing based algorithms for channel estimation. Most of these…

信息论 · 计算机科学 2018-06-19 Nitin Jonathan Myers , Robert W. Heath

High data rates require vast bandwidths, that can be found in the sub-THz band, and high sampling frequencies, which are predicted to lead to a problematically high analog-to-digital converter (ADC) power consumption. It was proposed to use…

信号处理 · 电气工程与系统科学 2023-09-13 Florian Gast , Stephan Zeitz , Meik Dörpinghaus , Gerhard P. Fettweis

One of the challenges in spaceborne synthetic aperture radar (SAR) is modeling and mitigating radio frequency interference (RFI) artifacts in SAR imagery. Linear frequency modulated (LFM) signals have been commonly used for characterizing…

图像与视频处理 · 电气工程与系统科学 2025-09-24 Dehui Yang , Feng Xi , Qihao Cao , Huizhang Yang

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