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Study on the Hybrid Algorithm for Electromagnetic Scattering of the Object

Author: LiGuangYa
Tutor: ZhangMin
School: Xi'an University of Electronic Science and Technology
Course: Radio Physics
Keywords: Hybrid Algorithm Method of Moments Current base Iterative physical optics method
CLC: TN011
Type: Master's thesis
Year: 2010
Downloads: 79
Quote: 1
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Abstract


This paper studies the target electromagnetic scattering of the hybrid algorithm, improve the TV university target electromagnetic scattering calculation efficiency, the main work and results including: 1, this paper introduces the calculation target electromagnetic scattering of the basic method, this paper discusses the method of moment (MoM), the physical optics method (PO) and iterative physical optics method (IPO), and give each kind of method of numerical examples. 2, discussed the MoM calculation one-dimensional rough surface method. Based on the current base of two-dimensional hybrid algorithm, the hybrid algorithm is derived, and the calculation formula of the hybrid algorithm to calculate the one-dimensional rough surface of the target compound scattering cross section. Through the different numerical example to discuss the influence of the main factors of the hybrid method. 3, is deduced based on the triangle surface yuan PO basic formula, and based on this, the goal is divided into the physical optics method area and the method of moment area. Considering current continuity, combining RWG basis based on the method of moment, got used to calculate any 3 d object electromagnetic scattering of the hybrid algorithm, and the formula to calculate the assembly target radar scattering cross section. Hybrid method and MoM's numerical examples are compared, and the results showed that the hybrid algorithm has higher computational efficiency.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > General issues > Basic theory > Radio wave propagation,the propagation mechanism
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