Dissertation > Excellent graduate degree dissertation topics show

Study of FDTD Method in the Vehicular Communication Multi-antenna System

Author: ZhouZuo
Tutor: QiuYang
School: Xi'an University of Electronic Science and Technology
Course: Mechanical and Electronic Engineering
Keywords: EMC FDTD antenna interference coupling
CLC: TN820
Type: Master's thesis
Year: 2009
Downloads: 179
Quote: 4
Read: Download Dissertation

Abstract


In this thesis, the EMC characteristic of multi-antennas on a vehicular platform is analyzed using the finite-difference time-domain (FDTD) method. FDTD is a kind of transient time domain method, which is derived directly from the differential form of Maxwell’s equations in the time domain. FDTD can simulate the propagation processing of electromagnetic wave very clearly. If the excitation is a pulse source, the response in frequency domain can be obtained over a wide bandwidth with one FDTD calculation. Moreover, FDTD can be conveniently used to deal with the problem of complicate shape in complicate medium. The procedure of FDTD method is very universal and can be widely applied in different kinds of system. So, it is applied in the simulation of vehicular communication multi-antenna system in this paper. The EMC prediction is achieved successfully according the calculation results.Firstly, the basic principle, the differential form of FDTD and other relative theories are proposed. The main content includes numerical modeling theories, absorbing boundary condition and the technology of excitation, etc. Secondly, the calculation and analysis model of vehicular communication multi-antenna system is built. The establishment of model is composed of two aspects: meshing of the vehicular and model of antennas. The former one is based on the patch and the latter one is FDTD technology of thin wire. Combined all these theories presented above, a FDTD near-zone to far-zone transformation is described in detail. The analysis model of antenna’s coupling and radiation characteristic are established in the paper. And, the EMC characteristic analysis of antennas on vehicular platform is achieved. Moreover, the summary for the advantage and disadvantage of FDTD is given. The new method ADI-FDTD which is better than the general FDTD is proposed. The principle and the derivation are demonstrated in detail. Finally, the analysis software of EMC of vehicular multiple antennae system is developed, which is based on the thought of Object-Oriented Programming. The basic idea, overall flow chart and the core design thought is introduced. Some useful conclusions are obtained and the application of FDTD is verified by a few examples.

Related Dissertations

  1. Numerical Study of the Effect with Straight and Bowed Stator in Different Axial Gaps,TH45
  2. Research on Smart Antenna Technology Application in WiMAX System,TN821.91
  3. Research on the Doppler Wireless Location Techniques Based on DSSS,TN914.42
  4. Study on RFID Techniques in the Manufacture of Used in Automobile Ignition Coils,TP391.44
  5. The Development of Electric Control System for Product Line of Cross-Linked Cable,TP273.5
  6. Research of Acoustic Signal Acquisition System Based on DSP,TP274.2
  7. Effects of Water and Nitrogen Coupling on the Water and Nitrogen of Soil and Yield and Quality of Flue-cured Tobacco in Luzhou,S572
  8. Effect of Water and Nitrogen Coupling Using on Soil Physical and Chemical Properties in Tobacco Areas and the Yield and Quality of Fule-cured Tobacco in Yibin,S572
  9. Design and Realization of the Magnetic Antenna in MW and SW Bands Based on Genetic Algorithm,TN820
  10. Expression Dynamics of Pheromone Binding Proteins and Expression Influences by Mating and Knockdown of Cryl in Spodoptera Exigua,S433.4
  11. Study on Hydraulic Fracturing of Low Permeability Reservoir,P618.13
  12. The Effects of Water and Fertilizer Coupling on Growth and Yield in Semi-winterness Wheat,S512.1
  13. Predicting the Coupling Effects of Water and Nitrogen on External Quality of Standard Cut Chrysanthemum in Solar Greenhouse,S682.11
  14. Research on Subsea Pipeline Repair Coupling,TE973
  15. Purifying Effect of Ecological Floating Bed to the Source Water Quality,X52
  16. Structural Design & Prototype Development on Deepwater Pipelines Position Measuring Device,TE973
  17. New aza- carbene complexes immobilized palladium and catalytic chlorinated aromatic Suzuki coupling reaction,O643.32
  18. Nano LaFeO 3 Controllable Synthesis and TiO 2 bridged construct composite photocatalyst,O643.36
  19. Research on Busy Tone Based Mac Protocol in Ad Hoc Network,TN929.5
  20. Studies on the Ni-catalyzed Suzuki-Miyaura Coupling Reaction,O643.32
  21. The Symmetries and Conserved Quantities of Several Physical Problems,O411.1

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radio equipment,telecommunications equipment > Antenna > General issues
© 2012 www.DissertationTopic.Net  Mobile