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Discrete Dynamics in Nature and Society
Volume 2015 (2015), Article ID 479804, 6 pages
http://dx.doi.org/10.1155/2015/479804
Research Article

Wind Shear Target Echo Modeling and Simulation

1School of Computer Science and Engineering, Chongqing University of Technology, Chongqing 400054, China
2Postdoctoral Research Station of Information and Communication Engineering, Chongqing University, Chongqing 400030, China

Received 3 December 2014; Revised 19 March 2015; Accepted 23 March 2015

Academic Editor: Filippo Cacace

Copyright © 2015 Xiaoyang Liu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Wind shear is a dangerous atmospheric phenomenon in aviation. Wind shear is defined as a sudden change of speed or direction of the wind. In order to analyze the influence of wind shear on the efficiency of the airplane, this paper proposes a mathematical model of point target rain echo and weather target signal echo based on Doppler effect. The wind field model is developed in this paper, and the antenna model is also studied by using Bessel function. The spectrum distribution of symmetric and asymmetric wind fields is researched by using the mathematical model proposed in this paper. The simulation results are in accordance with radial velocity component, and the simulation results also confirm the correctness of the established model of antenna.