Study on UWB Signal Transmitting and Receiving Strategy of Mine Wireless Multi-Media Sensor Network

In order to improve bit error rate features of wireless multi-media sensor network in underground coal mine and to realize high efficient transmitting and「 eceiving strategy of the UWB signals,according to a visual link circuit existed or not in the adjacent nodes and the multipath intensive degree of gateway,a comprehensi ve signal channel modeling and the parameter distinguishment was conducted on the UWB transmission environment in underground mine. Taking resist the mine multi path transmission as a target,a UWB signal transmission strategy with non intersymbol interferences was provided. The study results showed that the UWB signal trans mission and receiving strategy provided could effectively uilize the features of multipath transmission in mine roadway and could meet the requirements of software an d hardware by WMSN to realize complicated and low bit error rate performances in different mine roadway environment.