移动通信2026，Vol.50Issue(2)：57-67,11.DOI:10.3969/j.issn.1006-1010.20251129-0002
基于室内300-330GHz太赫兹信道测量的感知测距与环境重构
Perceptive Ranging and Environment Reconstruction Based on Indoor 300-330 GHz Terahertz Channel Measurement
摘要
Abstract
To meet the requirements of integrated sensing and communication(ISAC)in the sixth generation(6G)mobile networks,terahertz(THz)communication,owing to its ultra-high carrier frequency and high transmission rate,is regarded as a key enabler for achieving millimeter-level sensing accuracy.However,current experimental studies on the sensing performance of THz systems and the effects of surrounding environments remain limited.To address this gap,a vector network analyzer(VNA)-based transceiver measurement system is constructed with the operating frequency band between 300-330 GHz,and environmental reconstruction experiments are conducted in a T-shaped corridor at the Purple Mountain Laboratories.We first introduce the THz frequency domain channel measurement system and principle based on a VNA spread spectrum scheme,including the calibration procedure,multipath parameter estimation,and data processing workflow.We then perform a comprehensive analysis of channel sensing,environmental mapping and reconstruction,revealing the mechanism behind the formation of virtual walls and the method for reconstructing wall features.In addition,the distribution characteristics of the backscattering coefficients in the measurement environment are analyzed.The results demonstrate that THz frequency band can achieve high-accuracy ranging and reliable two-dimensional environment reconstruction in the tested scenario,where the average backscattering coefficient exceeds 50 dB.The findings of this work provide valuable experimental support for the design of THz sensing systems.关键词
信道测量/太赫兹通信/环境重构/虚墙/后向散射系数Key words
channel measurement/terahertz communication/environment reconstruction/virtual wall/backscattering coefficient分类
信息技术与安全科学引用本文复制引用
林宸洲,孙铄,邱天,张泰豪,何永超,潘存华..基于室内300-330GHz太赫兹信道测量的感知测距与环境重构[J].移动通信,2026,50(2):57-67,11.基金项目
国家重点研发计划青年科学家项目"面向6G的超高频超大规模MIMO传输技术研究"(2023YFB2905100) （2023YFB2905100）
