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Research on 3D Visualization to Electromagnetic Field

Author: XinJianHua
Tutor: WangCheng
School: Huazhong University of Science and Technology
Course: Water Resources and Hydropower Engineering
Keywords: Scientific Visualization Surface Reconstruction Marching Cubes OpenGL
CLC: E96
Type: Master's thesis
Year: 2005
Downloads: 336
Quote: 4
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Abstract


In the modern battlefield , weapons systems, communications systems and jamming systems are emitted intensity , frequency electromagnetic signals , these electromagnetic signal will battle space pose a serious electromagnetic pollution . Certain the aircraft select a low-altitude flight , so that you can avoid the detection of high - altitude radar beam , but at the same time but by the powerful electromagnetic radiation of the near-surface electromagnetic interference . Under these conditions, the study battlefield typical near-surface electromagnetic waves affect the performance of the weapons , has a very important practical significance . The electromagnetic field three-dimensional visualization of an application areas as scientific visualization , mainly to study two typical linear and punctate strong sources of electromagnetic radiation facilities: the electromagnetic field of high voltage transmission lines and television transmission towers , to be achieved through three processes visualization of three-dimensional electromagnetic field . First three-dimensional electromagnetic field data to generate different influencing factors were the theoretical analysis and modeling calculation to obtain the three-dimensional coordinates of discrete points of space electromagnetic field rules and the electromagnetic field strength data ; second step visualization of three-dimensional electromagnetic mapping , decided by Reconstructing the contour surface chart to show the distribution of the electromagnetic field strength . Based on existing data , with the help of three-dimensional data field structure isosurface classical algorithm Marching Cubes algorithm to calculate the three-dimensional coordinates of the triangular facets of the electromagnetic field isosurface and law electromagnetic field vector triangle mesh fitting isosurface . Finally, OpenGL as a tool , through the modeling of three-dimensional graphics , transform , blanking , color and light , to achieve a three - dimensional electromagnetic field isosurface rendering and display , as well as real-time interaction . The electromagnetic field three-dimensional visualization efficient handling of large amounts of scientific data to explain the lack of effective means of these data contradiction comprehensive performance distribution near ground space of the two electromagnetic fields near the ground , rich means of information exchange for the battlefield provide a basis for the guidance and control of low-altitude aircraft .

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CLC: > Military > Military technology > Military communications
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