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Current literature show that frequency diverse arrays (FDAs) are able of producing range-angle-dependent and time-variant transmit beampatterns, but the resulting time and range dependencies and their characteristics are still not well…

信号处理 · 电气工程与系统科学 2022-12-22 Wenkai Jia , Andreas Jakobsson , Wen-Qin Wang

This paper considers antenna impedance estimation based on training sequences at MIMO receivers. The goal is to firstly leverage extensive resources available in most wireless systems for channel estimation to estimate antenna impedance in…

信息论 · 计算机科学 2023-08-30 Shaohan Wu , Brian L. Hughes

In this paper, we explore adapter tuning and introduce a novel dual-adapter architecture for spatio-temporal multimodal tracking, dubbed DMTrack. The key of our DMTrack lies in two simple yet effective modules, including a spatio-temporal…

计算机视觉与模式识别 · 计算机科学 2026-03-04 Weihong Li , Shaohua Dong , Haonan Lu , Yanhao Zhang , Heng Fan , Libo Zhang

In this paper, we propose a framework for efficient Source-Free Domain Adaptation (SFDA) in the context of time-series, focusing on enhancing both parameter efficiency and data-sample utilization. Our approach introduces an improved…

机器学习 · 计算机科学 2025-02-04 Gaurav Patel , Christopher Sandino , Behrooz Mahasseni , Ellen L Zippi , Erdrin Azemi , Ali Moin , Juri Minxha

The theoretical basis for conventional acquisition of bandlimited signals typically relies on uniform time sampling and assumes infinite-precision amplitude values. In this paper, we explore signal representation and recovery based on…

信号处理 · 电气工程与系统科学 2020-02-10 Pablo Martínez-Nuevo , Hsin-Yu Lai , Alan V. Oppenheim

Due to its excellent performance in rate and resolution, fully-digital (FD) massive multiple-input multiple-output (MIMO) antenna arrays has been widely applied in data transmission and direction of arrival (DOA) measurements, etc. But it…

信号处理 · 电气工程与系统科学 2024-06-13 Jiatong Bai , Feng Shu , Qinghe Zheng , Bo Xu , Baihua Shi , Yiwen Chen , Weibin Zhang , Xianpeng Wang

This paper aims to provide a comprehensive solution for the design, analysis, and optimization of a multiple-antenna non-orthogonal multiple access (NOMA) system for multiuser downlink communication with both time duplex division (TDD) and…

信息论 · 计算机科学 2017-06-05 Xiaoming Chen , Zhaoyang Zhang , Caijun Zhong , Derrick Wing Kwan Ng

Modern physics experiments often utilize FPGA-based systems for real-time data acquisition. Integrated analog electronics demand for complex calibration routines. Furthermore, versatile configuration and control of the whole system is a key…

系统与控制 · 电气工程与系统科学 2021-09-01 Nick Karcher , Richard Gebauer , Robin Bauknecht , Rainer Illichmann , Oliver Sander

Resting-state functional MRI (rs-fMRI) is increasingly employed in multi-site research to aid neurological disorder analysis. Existing studies usually suffer from significant cross-site/domain data heterogeneity caused by site effects such…

计算机视觉与模式识别 · 计算机科学 2023-08-25 Yuqi Fang , Jinjian Wu , Qianqian Wang , Shijun Qiu , Andrea Bozoki , Huaicheng Yan , Mingxia Liu

Intelligent terminals often produce a large number of data packets of small lengths. For these packets, it is inefficient to follow the conventional medium access control (MAC) protocols because they lead to poor utilization of service…

信息论 · 计算机科学 2016-11-18 Ronggui Xie , Huarui Yin , Zhengdao Wang , Xiaohui Chen

In always-on HAR deployments, model accuracy erodes silently as domain shift accumulates over time. Addressing this challenge requires moving beyond one-off updates toward instance-driven adaptation from streaming data. However, continuous…

机器学习 · 计算机科学 2026-04-10 Minghui Qiu , Jun Chen , Lin Chen , Shuxin Zhong , Yandao Huang , Lu Wang , Kaishun Wu

Wearable devices enable continuous multi-modal physiological and behavioral monitoring, yet analysis of these data streams faces fundamental challenges including the lack of gold-standard labels and incomplete sensor data. While…

Massive MIMO and non-orthogonal multiple access (NOMA) are crucial methods for future wireless systems as they provide many advantages over conventional systems. Power-domain NOMA methods are investigated in massive MIMO systems, whereas…

信息论 · 计算机科学 2020-10-13 Murat Bayraktar , Gokhan Muzaffer Guvensen

Passive monitoring of acoustic or radio sources has important applications in modern convenience, public safety, and surveillance. A key task in passive monitoring is multiobject tracking (MOT). This paper presents a Bayesian method for…

信号处理 · 电气工程与系统科学 2024-02-29 Wenyu Zhang , Florian Meyer

Real-time frequency measurement for non-repetitive and statistically rare signals are challenging problems in the electronic measurement area, which places high demands on the bandwidth, sampling rate, data processing and transmission…

信号处理 · 电气工程与系统科学 2023-08-21 Ruiyuan Ming , Peng Ye , Kuojun Yang , Zhixiang Pan , ChenYang Li , Chuang Huang

LiDAR-camera 3D multi-object tracking (MOT) combines rich visual semantics with accurate depth cues to improve trajectory consistency and tracking reliability. In practice, however, LiDAR and cameras operate at different sampling rates. To…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Xian Wu , Yitao Wu , Xiaoyu Li , Zijia Li , Lijun Zhao , Lining Sun

Optical and radar satellite time series are synergetic: optical images contain rich spectral information, while C-band radar captures useful geometrical information and is immune to cloud cover. Motivated by the recent success of temporal…

计算机视觉与模式识别 · 计算机科学 2021-12-15 Vivien Sainte Fare Garnot , Loic Landrieu , Nesrine Chehata

Stochastic approximation (SA) that involves multiple coupled sequences, known as multiple-sequence SA (MSSA), finds diverse applications in the fields of signal processing and machine learning. However, existing theoretical understandings…

机器学习 · 计算机科学 2024-10-18 Yue Huang , Zhaoxian Wu , Shiqian Ma , Qing Ling

As a new method for detecting change-points in high-resolution time series, we apply Maximum Mean Discrepancy to the distributions of ordinal patterns in different parts of a time series. The main advantage of this approach is its…

统计方法学 · 统计学 2012-10-19 Mathieu Sinn , Ali Ghodsi , Karsten Keller

Time Series Alignment is a critical task in signal processing with numerous real-world applications. In practice, signals often exhibit temporal shifts and scaling, making classification on raw data prone to errors. This paper introduces a…

机器学习 · 计算机科学 2025-02-27 Alireza Nourbakhsh , Hoda Mohammadzade
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