Dissertation > Excellent graduate degree dissertation topics show

High-level fast multipole method for accurate modeling of complex electromagnetic scattering

Author: GongXiaoDong
Tutor: NieZaiPing
School: University of Electronic Science and Technology
Course: Electromagnetic Field and Microwave Technology
Keywords: Electromagnetic scattering Integral equation method Method of Moments Higher - order method High - level geometric modeling Higher - order basis functions Fast multipole method Multilevel fast multipole method
CLC: TN011
Type: Master's thesis
Year: 2003
Downloads: 364
Quote: 9
Read: Download Dissertation

Abstract


Efficient solving of complex electromagnetic scattering and radar target identification for radar system design has very important significance . Efficient solving of complex electromagnetic scattering contains two meanings . First : the ability to achieve in the limited computer resources under the conditions of accurate modeling and calculation of target scattering properties , the results should be consistent with the measured value with high precision . Second : in the premise , to achieve a more rapid analysis and calculation . So, look for a strict , efficient and accurate means of analysis has become the focus of the study target scattering . In this paper, based on higher-order moment method of fast multipole method ( FMM ) and the multilevel fast multipole algorithm ( MLFMA ) computational complexity of the target electromagnetic scattering . The method is compared with the low-level method , the desired the unknown quantity less storage needed less , while maintaining high precision of calculation results , etc. having a high level of convergence . In this paper, a benchmark targets such as conducting sphere , the amygdala , two olives body of backscatter results , these results are in good agreement with the measured values ??, which shows the efficiency of the proposed method . This paper systematically elaborated on the basis of the study as a whole subject - the key technology of the moment method , such as geometric modeling of the target body , the basis functions and the choice of the function , the integral equation singular integral processing . Next , details of the higher - order method two aspects: a high - level geometric modeling and high-order basis functions . Several commonly used high-end chip unit and higher-order basis functions . Complex three-dimensional conductor electromagnetic scattering problems , this paper uses a curved triangular patch analog scattering surface , combined with high - order interpolation divergence conformal basis functions for analysis . This paper analyzes the typical three-dimensional conductive electromagnetic scattering , to obtain a better calculation results proved the correctness of the methods and procedures . Finally, on the basis of the study , the research for efficient solving complex electromagnetic scattering problem complexity and the fast multipole method and the multilevel fast multipole method . A comprehensive exposition of the basic principles of fast multipole multilevel fast multipole method . In-depth analysis of how it applies to higher-order moments method .

Related Dissertations

  1. Adjustable composite element frequency selective surface design,TN713
  2. Astudy on Hierarchical-Matrix-Based Algorithm for Solving Electromagnetic Problems of the Volume Integral Equation,O175.5
  3. Astudy on Hierarchical-matrix-based Algorithm for Solving Electromagnetic Scattering from Conducting Bodies,O441
  4. A Study on Scattering from Target and Rough Surface by Using FDTD Method,TN011
  5. Composite basis functions and generalized transmission matrix online electromagnetic radiation characteristics of the antenna surface structure research applications,O441
  6. The airborne radar RCS algorithm with the software implementation,TN959.73
  7. Financial liberalization is to study the role of financing constraints,F272;F224
  8. Wavelet moment method for solving electromagnetic scattering problems in applied research,O441
  9. Theoretical Study and Related Applications of the Conformal Finite Difference Time Domain,O441.4
  10. Characteristic Basis Function Method Based on Singular Value Decomposition and Its Applications in Electromagnetic Scattering Problem,O441.4
  11. Research on Absorbing Boundary Condition and Its Application on Electromagnetic Scattering,O441.4
  12. Application of Parallel FDTD and MPSTD Algorithm in EM Scattering,O441.4
  13. An Analysis of Electromagnetic Scattering Characteristics of Dielectric Objects by Method of Moments,TM15
  14. Prediction Model of Electromagnetic Fields of Extra High Voltage Transmission Lines,TM723
  15. A Study on Hierarchical-matrix-based Fast Algorithm for Solving Electromagnetic Problems,O441.4
  16. Study on Fast Computation of Impedance Matrix of Method of Moments,O441.4
  17. The Study of Key Technology for Fast Calculation of Wide-band RCS for Electrically Large Conductor Target,TN011
  18. Time Domain Integral Equation Method for the Lightning Induced Over-Voltages in Power Lines,TM863
  19. Design of RF Coils for Magnetic Resonance Imaging System Using Hybrid of FDTD/MoM Method,R197.39
  20. Based on a common platform of electromagnetic scattering and radiation,TN03
  21. The radial anisotropic nanoparticles system electromagnetic characteristics,O441.6

CLC: > Industrial Technology > Radio electronics, telecommunications technology > General issues > Basic theory > Radio wave propagation,the propagation mechanism
© 2012 www.DissertationTopic.Net  Mobile