路径损耗对无人车遥控通信的分析与仿真

Path Loss for the Analysis and Simulation of UGV Remote Communication

针对无线通信中路径损耗对无人车遥控通信的影响,从电台、天线在多种工况环境下的合理选择,遥控端与车载端之间稳定通讯策略以及车体信息(包括周围环境信息)采集情况等3个方面进行了探讨和分析;分析了电台天线在无人车遥控通讯系统稳定性中的作用,并以路径损耗程度作为遥控通信质量的判定标准,通过调整通信距离d、载波频率f等参数,在Matlab软件平台上仿真;结果表明当通信距离超过300m时,路径损耗已达100dB,此时可以通过提高天线增益达到降低路径损耗的目的。

Contraposing the effect of path loss in wireless communication for UGV remote communication, it is discussed and analysed from the rational choice of radio and antenna in different conditions, the stability communication strategy between remote control terminal and vehicle terminal, and the information acquisition of vehicle （including surrounding environment）. The role of radio and antenna in UGV＇ s remote communication system is analysed, and path loss used as a criteria for communication quality, through changing distance d, carrier frequency f on Matlab software platform. The results show that path loss has amounted to 100dB when distance exceeds 300 m. Path loss can be reduced through improving the antenna gain at this time.