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The EMC Design of Bus in Vehicular Communication System

Author: ZhangZhenXin
Tutor: QiuYang
School: Xi'an University of Electronic Science and Technology
Course: Measuring Technology and Instruments
Keywords: Electromagnetic Compatibility Bus Mutual coupling Simulation Software
CLC: TN803
Type: Master's thesis
Year: 2009
Downloads: 129
Quote: 2
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Abstract


With the bus vehicle communication technologies and the development of technology , communications vehicle interior installed a large number of devices , an increasing number of the bus , the bus coupling between interference effects are more severe , and the resulting electromagnetic compatibility problems are becoming increasingly evident. Firstly, the communication from the vehicle starting system data bus , respectively, from the bus and the electrical characteristics of the physical characteristics of both studies conducted on the data bus , and for different types of data buses , different coupling mechanisms described . In this paper, transmission line theory as the theoretical basis , focusing derivation of the classical transmission line equations , analyze a multi- conductor transmission line equations inductance per unit length , capacitance per unit length , resistance per unit length per unit length conductance matrix of the parameter matrix of the physical meaning , the establishment of different data bus coupled models, including bare transmission line model , shielded transmission line coupling model and the actual vehicle data bus coupled model . Based on the above theory and analysis model, we use VC and C language , the original multi-core cable simulation software has been improved to improve the accuracy of the calculation . Finally, we use simulation software to study the layout of the bus and the bus signal transmission characteristics of the bus coupling effects , draw the relevant conclusions for engineering practice has a certain significance.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radio equipment,telecommunications equipment > General issues > Structure
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