摘要
本文介绍关于室内环境中时延扩散的实验,实验采用基于伪随机码滑动相关法的无线信道探测器,在典型的室内环境中对UHF(900MHz)无线信道功率时延曲线进行实地测量,通过对大量实测数据的处理和分析得出了一些很有价值的结论,如在LOS及NLOS情况下的时延扩展均方根值和方差;时延扩散与收发距离、路径损耗及收发天线不同线极化方向的关系等等。
This paper reports the experimental study on delay spread made in typical office environment by using self made Sliding correlated spread spectrum channel sounder.Based on field measured power delay profile,some valuable results have been drawn and described in the paper,such as the cumulated distribution of delay spread in both LOS and NLOS cases;the relationship of delay spread to distance between transmitter and receiver,the relevant path loss,the polarization and directivity of antenna.
出处
《通信学报》
EI
CSCD
北大核心
1998年第12期42-46,共5页
Journal on Communications
基金
国家自然科学基金
关键词
室内电波传播
时延扩散
实地测量
无线通信
indoor propagation,delay spread,sliding correlated PN method,field measurements