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      Research on Constructing War-field Electromagnetic Environment Using Parabolic Equation

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          Abstract

          Constructing digital war-field electromagnetic environment needs to model and simulate the transmitting course of electric waves combining various environment factors. The Parabolic Equation (PE) described model is suitable for computing the waveguide propagation characteristics from an area in the horizon to that over the horizon, and there is Split-Step Fourier Transform (SSFT) algorithm to resolve the model. But it is an iterative method based on step length and is difficult to be realized in parallels, thus it is difficult to meet the requirement time wise and bring the obstacles to constructing war-field electromagnetic environment fastly. This paper puts forward a parallel computing method based on matrix transposing, and realizes parallel computing of the algorithm by constructing two-dimensional matrixes and distributing them to different process in line or in row. The method makes full use of the operating ability of calculation clusters, decreasing computing time. The result of computer simulating shows that parallel algorithm can have a speedup as four times large as that of sequential algorithm, thus verifies the effectiveness of the method.

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          Author and article information

          Journal
          Journal of Radars
          Chinese Academy of Sciences
          01 March 2012
          : 1
          : 1
          : 63-68
          Affiliations
          [1 ] ①(The Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China) ②(Graduate University of Chinese Academy of Sciences, Beijing 100049, China) ③(The Academy of Equipment, Beijing 101416, China)
          [2 ] ①(The Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)
          [3 ] ③(The Academy of Equipment, Beijing 101416, China)
          Article
          f42aa6100fbd4f3494d353f9a32b672a
          10.3724/SP.J.1300.2012.20013

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          Categories
          Technology (General)
          T1-995

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