信号处理2025，Vol.41Issue(5)：787-806,20.DOI:10.12466/xhcl.2025.05.002
5G-A通感一体基站组网低空感知关键技术
Key Technologies for Low-Altitude Sensing in 5G-A Integrated Communication and Sensing Networks
刘斌越 1杨建强 1徐波 1王博磊 1蔡华1
作者信息
- 1. 上海华为技术有限公司,上海 201700
- 折叠
摘要
Abstract
With the expanding low-altitude economy,effective regulation of low-altitude drones has emerged as a criti-cal prerequisite for industrial sustainability.This paper systematically investigates the technical challenges of radar-based drone detection in urban environments.Two primary challenges are identified:the miniaturization and high maneuver-ability of consumer-grade drones impose significant constraints on radar target detection performance and dynamic and static clutter in dense urban areas contribute to low detection rates and high false alarm rates.Single-station radar sys-tems are shown to be ineffective under these conditions,necessitating advanced networking solutions.Radar networking technology enhances detection capabilities through improved detection rates and reduced false alarms,positioning it as a transformative trend in modern radar development.However,large-scale implementation encounters significant techni-cal and engineering hurdles.Innovatively,5G-A communication-sensing integrated base stations were proposed to ad-dress these issues by leveraging existing 5G-A infrastructure.This architecture resolves critical technical barriers in large-scale radar networking,particularly time-frequency-space synchronization.A hierarchical master-slave networking framework was developed to support multi-station joint signal detection using coherent/non-coherent mechanisms and advanced target tracking/recognition through data fusion.Theoretical analysis and field validation confirmed the efficacy of these technologies.In urban deployments,track association success rates and equipment cost reductions were demon-strated compared with conventional radar systems.By dynamically multiplexing communication resources,implement-ing intelligent interference suppression,and enabling collaborative multi-station processing,5G-A communication-sensing integration establishes a scalable solution for urban low-altitude sensing systems.This breakthrough satisfies the stringent requirements of low-altitude detection and provides a technological foundation for smart city infrastructure development.关键词
低空无人机感知/5G-A/通感一体/雷达网络Key words
unmanned aerial vehicle(UAV)low-altitude sensing/5G-Advanced/integrated sensing and communica-tions(ISAC)/radar network分类
信息技术与安全科学引用本文复制引用
刘斌越,杨建强,徐波,王博磊,蔡华..5G-A通感一体基站组网低空感知关键技术[J].信号处理,2025,41(5):787-806,20.
