摘要
在单向抛物方程法的逆算法即逆绕射抛物方程法的基础上,研究了双向抛物方程法的逆算法,对障碍物引起的后向场进行了逆绕射运算,并根据该逆绕射场分布来确定障碍物的位置和高度.基于此逆算法对刃峰形障碍物的定位问题进行了数值仿真求解,分析了天线高度和刃峰位置的变化对定位精度的影响.数值结果表明双向抛物方程逆算法能用于对障碍物进行定位,且对单刃峰的定位精度很高.
In this paper, an inverse algorithm of two-way parabolic equation (2WPE) method is presented and investigated on the basis of the inverse algorithm of one-way parabolic equation (1WPE) method, i.e. inverse diffraction parabolic equation method. At a certain receiving point, the backward-fields reflected by obstacles are obtained and inversely propagated, and then the location and height of the obstacles can be determined by the inverse diffraction fields. Simulation results of the inverse algorithm of 2WPE method for the scenario of single knife-edge is provided. For single knife-edge, the effects of the antenna height and the knife-edge location on the positioning accuracy is analyzed, and the accuracy is very high. Copyright © 2015 by Editorial Department of Chinese Journal of Radio Science
出处
《电波科学学报》
EI
CSCD
北大核心
2015年第6期1108-1115,共8页
Chinese Journal of Radio Science
基金
广东省自然科学基金(S2013040013643)
国家自然科学基金(61401106
41376041)
教育部博士点基金(20130171110024)
广州市科技计划项目科学研究专项(2014J4100206)
关键词
双向抛物方程
逆算法
定位
刃峰
Algorithms
Diffraction
Partial differential equations
