Electromagnetic Analysis of an in-car Complex Channel of Propagation by Means of Non Invasive Measurements and FDTD
Wireless communication systems are now largely deployed to secure human activities: sensors can alert from different dangers indoor(house fire or gas leak,alert and prevent from intrusion)or outdoor(civil and military applications).The development of sensors in transport(aircrafts,trains,trucks,cars,...)is a crucial and sensitive area for security purposes(radar,driver vigilance system,...).Among these solutions,tire pressure monitoring systems(TPMS)measure in real time the pressure of tires to increase safety,reduce tire wear and save gas.However,the wireless communication between the four emitting wheel sensor modules and the receiver usually suffer from important data losses.These losses can be attributed to the profile of the radio frequency(RF)channel of propagation(rotating wheel,ground effects,...).As the RF channel is not operating in free space conditions,many propagation effects corrupt the propagation between the sources and the receiver.Moreover,the emitting sources are close to metallic frames(rim,chassis of the car,...),and far field condition is rarely satisfied.It is thus necessary to propose reliable models of the radiating source and of the propagation effects to establish efficient solutions and to improve the rate of the received frames.This work presents results on the electromagnetic(EM)simulations of the transmitting source,and of the overall channel for different car models; these simulations are confronted to non-invasive measurements to analyze the root causes of failing transmissions.This method,melting EM simulations with RF measurements,shortens the roadmaps for setting new wireless systems working in harsh environments.
J.G.Tartarin M.Cheikh J.David A.Morin
LAAS-CNRS & Universite de Toulouse,7 av.du Col.Roche,Toulouse 31077,France Continental Automotive France SAS,1 rue Paul Ourliac,Toulouse 31036,France LAPLACE,2 rue Camichel,Toulouse 31000,France
国际会议
Progress in Electromagnetics Research Symposium 2011(2011年电磁学研究新进展学术研讨会)
苏州
英文
657-661
2011-09-01（万方平台首次上网日期，不代表论文的发表时间）