金属矿井超宽带无线传感器网络路径损耗模型的研究

The Research on Path Loss Model based on Ultra Wideband Wireless Sensor Network in Metal Mine

路径损耗模型对于分析无线信道的可用性具有重要意义,而信号的传播环境是影响无线通信系统性能的关键因素之一.结合电磁波的传播理论,在分析电磁波在金属矿井下传输时所存在的固有损耗与附加损耗的基础上,建立了矿井超宽带无线传感器网络路径损耗模型,并进行了仿真验证.结果表明,该模型能够较准确地预测出无线信号在金属矿井下传输情况,对于无线网络的规划等具有重要的指导作用.

The path loss model has very important significance for the analysis of wireless channel availabili-ty, The signal propagation environment is one of the key factors for the performance of wireless communication system.Therefore, based on the electromagnetic wave propagation theory , the analysis of natural loss and ad-ditional loss when electromagnetic wave is transmitted in metal mine underground , the path loss model of UWB wireless sensor network was established , which is validated by simulation .The results show that： the model can accurately predicts the wireless signal transmission in metal mine , and it has an important guiding signifi-cance for the planning of the wireless network .