移动通信2024，Vol.48Issue(9)：160-165,6.DOI:10.3969/j.issn.1006-1010.20240906-0002
海上无线SDMA接入的波束指向切换技术研究
Research on Beam-Pointing Switching Technology for Maritime Wireless SDMA Access
摘要
Abstract
In maritime communication scenarios characterized by sparse and dynamically independent small local area networks,this paper proposes a maritime wireless communication system based on phased array antennas.The system employs dynamic beam pointing for single spot beams from a central phased array antenna to provide beam coverage for small stations in specific spatial directions,enabling space division multiple access(SDMA).This approach offers broad coverage and flexible network configuration,making it suitable for dynamic and sparse maritime communication environments.The study focuses on beam-pointing switching technique for SDMA access,introducing a method based on position information and time-slot allocation.This method calculates beam direction information from real-time position data of the central and small stations and adjusts the beam direction at the start of each time slot.Implementation on a system-on-chip field-programmable gate array demonstrates that the proposed method achieves precise spot beam alignment based on position information and completes beam-pointing switching within 1 ms,supporting multiple high-speed data streams simultaneously.关键词
相控阵天线/点波束/SDMA/位置信息/SoC FPGAKey words
phased array antenna/spot beam/space division multiple access/position information/system-on-chip field-programmable gate array分类
信息技术与安全科学引用本文复制引用
何豆,孙恩昌,杨睿哲,张一..海上无线SDMA接入的波束指向切换技术研究[J].移动通信,2024,48(9):160-165,6.基金项目
国家自然科学基金"边缘智能协同共享驱动的绿色工业互联网关键技术和方法研究","边缘智能协同共享驱动的绿色工业互联网关键技术和方法研究"(62371012,62371014) （62371012,62371014）
