煤矿井巷自适应多天线理论与关键技术研究

摘要

在分析煤矿井巷无线信号传播环境特点及多天线辐射特性的基础上,提出了融合巷道波导理论和自适应阵列天线相关技术的自适应多天线技术,介绍了煤矿井巷自适应多天线的基本组成和原理,并探讨了其需进一步研究的关键技术.煤矿井巷自适应多天线可根据信道传输特征有选择地控制导引波模的数量、类型和强度,从源头上改善井下无线通信覆盖状况,提高煤矿无线通信系统性能.%Characteristics of wireless communication environment and multi-antenna radiation in coal mine tunnel were analyzed.An adaptive multi-antenna technology was proposed on basis of tunnel waveguide theory and adaptive array antenna technology.Basic composition and principle of the adaptive multi-antenna in coal mine tunnel were introduced.Meanwhile,key technologies needed to be further studied were discussed.The adaptive multi-antenna in coal mine tunnel can selectively control number,type and intensity of guided wave modes according to channel characteristics,so as to improve underground status of wireless communication coverage from the source and performance of coal mine wireless communication system.