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Research of the Typhoon and CINRAD 3D Mosaic Products Display Technology

Author: TanZhen
Tutor: GengHuanTong
School: Nanjing University of Information Engineering
Course: Applied Computer Technology
Keywords: Typhoon 3D networking products Slice interpolation algorithm Asymmetric recognition algorithm Display System
CLC: TN959.4
Type: Master's thesis
Year: 2011
Downloads: 15
Quote: 0
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Abstract


The landing typhoon three-dimensional structure and change its path and intensity changes have a great relationship, the use of a new generation of weather radar network real-time analysis of typhoon three-dimensional structure of nowcasting and warning of the typhoon. In the typhoon networking product generation system based on the actual situation of the typhoon monitoring and early warning, and developed a three-dimensional network of Typhoon radar display system. This article describes the typhoon, weather radar, networking products background knowledge and development status, several algorithms and techniques for Typhoon display system, and then expounded the whole system development process the last typhoon instance it effect test. The main research content and preliminary conclusions are as follows: (1) one for the Typhoon 3D networking products interpolation. Attunement for networking products and the problem of uneven distribution in the vertical direction, the horizontal and vertical section structure used during different interpolation methods, nearest neighbor interpolation algorithm and bilinear interpolation algorithm typhoon three-dimensional structure show. Authentication through the practical application of this method can effectively reduce the the interlayer distortion interpolation to increase the resolution interlayer, to obtain a good application effect. (2) for the Typhoon Typhoon asymmetric direction recognition algorithm to determine, by calculating the analysis area over the center of the typhoon azimuth i and its symmetrical direction azimuth (i 180) CR data of the mean difference, the difference is the direction of the largest the largest non-symmetrical direction can quickly and accurately get the maximum asymmetric axis of symmetry, to solve previously difficult to quantify a matter of judgment. (3) in the the typhoon networking product generation system based on design and implement a the Typhoon radar three-dimensional network display system. The display system taking into account the needs of real-time processing and analysis of historical data, to achieve real-time monitoring of the Typhoon 3D networking products, animation shows the superposition of wind farms and other functions, and the use of slice interpolation algorithm, typhoons asymmetric direction recognition algorithm to achieve the maximum axis of symmetry and non-automatic positioning of the axis of symmetry of its facets, is a comprehensive display of the integrated display system of the typhoon three-dimensional structure. Meteorological operations has been applied. (4) by typhoon cases examined the effect of the practical application of the display system, \, while according to the horizontal and vertical image typhoon, we can clearly understand the spatial structure of the typhoon, according to the echo changes and the movement of the axis of symmetry analysis of the extinction of change and the change of the moving path of the introduction of wind inside consistent with the actual situation.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radar > Radar: zoning > Agriculture radar, weather radar
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