| 基于最优化方法的地下圆柱目标定位与识别 |
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| 引用本文： | 雷文太,黄春琳. 基于最优化方法的地下圆柱目标定位与识别[J]. 计算机仿真, 2009, 26(7): 1-4 |
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| 作者姓名： | 雷文太 黄春琳 |
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| 作者单位： | 中南大学信息物理工程学院,湖南长沙,410083;国防科技大学电子科学与工程学院,湖南长沙,410073 |
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| 摘 要： | 地下管道、空洞等圆柱形目标的定位和识别是探地雷达走向实用的一个亟待解决的问题.提出了一种在频域运用最大似然估计进行圆柱目标定位和识别的方法.在一阶Born近似下建立了各孔径点处回波信号和目标的位置参数和电磁参数之间的关系,将目标的未知参数估计问题归结为全局搜索-目标函数极值的最优化问题.通过对仿真数据和实测数据的处理,结果显示该方法可以精确估计出目标的位置参数和电磁参数,有效地进行圆柱目标的定位和识别.
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| 关 键 词： | 探地雷达 目标定位 目标识别 |
Underground Cylindrical Objects Position Estimation and Recognition Based on Optimization Technique |
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| LEI Wen-tai,HUANG Chun-lin. Underground Cylindrical Objects Position Estimation and Recognition Based on Optimization Technique[J]. Computer Simulation, 2009, 26(7): 1-4 |
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| Authors: | LEI Wen-tai HUANG Chun-lin |
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| Affiliation: | 1. School of Info-physics and Geomatics Engineering;Central South University;Changsha Hunan 410083;China;2. School of Electronic Science and Engineering;National University of Defense Technology;Changsha Hunan 410073;China |
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| Abstract: | In the application of ground penetrating radar,a pivotal problem is the localization and recognition of cylindrical objects such as tracts and cavities.In this paper,a maximum-likelihood estimation method is presented to solve this problem.By using estimation theory,this problem is transferred to the estimation of target's position and electromagnetic parameters.Based on first order Born approximation,the relationship between target's parameters and echo signals is established and a maximum-likelihood estim... |
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| Keywords: | Ground penetrating radar Target localization Target recognition |
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