介质圆柱的单站微波成像方法

刘昆; 郭在华

介质圆柱的单站微波成像方法

刘昆,
郭在华

成都信息工程学院电子工程学院, 中国气象局大气探测重点实验室, 四川成都 610225

详细信息

作者简介:
刘昆(1979-),男,安徽人,2008年获得西南交通大学电磁场与微波技术专业博士学位。现任成都信息工程学院电子工程学院讲师,主要研究方向为计算电磁学,电磁散射与逆散射,优化算法研究。

通信作者:
刘昆 E-mail:liukun@cuit.edu.cn

中图分类号: TN957.5
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出版历程
- 收稿日期: 2010-07-14
- 网络出版日期: 2020-12-30
- 发布日期: 2011-06-29

A near-field monostatic microwave imaging method for dielectric cylinder

Electronic Engineering College of Chengdu University of Information Technology, Key Laboratory of Atmospheric Sounding of China Meteorological Administration, Chengdu Sichuan 610225, China

摘要

摘要: 提出一种对介质圆柱实现单站微波成像的方法。该方法通过时域有限差分法进行电磁场正过程的仿真计算，采用整数微分进化策略实现逆过程的寻优计算。分别分析TE模式和TM模式的近场散射信号得到介质成像目标在电磁波传播方向上尺寸大小的估计，并以此为依据，确定成像目标的尺寸范围，从而确定逆过程的寻优区间。该方法无需像传统成像方法围绕成像目标设置多个发射/接收天线以获取成像信息，从而大大减少了成像的必要条件。采用该方法，在TE模式和TM模式下分别对介质圆柱目标进行仿真成像，获得了良好的效果。
- 微波成像 /
- 时域有限差分法(FDTD) /
- 整数微分进化策略(IDES)
Abstract: A new monostatic microwave imaging method for 2D dielectric cylinder in time domain is proposed. In this method, finite difference time domain (FDTD)and integer differential evolution strategy are used as an appropriate electromagnetic solver and global optimization method. A coarse radius solution of the dielectric object is achieved with the analysis of the TM mode and TE mode near-field. And then, with this solution as an initial guess for integer differential evolution strategy, the optimization is used to obtain the accurate solution. The main advantage of this method is its single-illumination single-view approach. It is not like the traditional method to obtaining the total shape information by multi-illumination multi-view approach. Thereby, imaging requirements is reduced greatly. Performance of the proposed method is demonstrated and discussed from dielectric cylinder profile reconstruction cases.
- microwave imaging /
- finite-difference time-domain /
- integer differential evolution strategy (IDES)

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参考文献(10)

REKANOS I T, RAISANEN A. Microwave imaging in the time domain of buried multiple scatterers by using an FDTD-based optimization technique[J]. IEEE Trans. Magn., 2003, 39(3):1381-1384.

DONELLI M, A MASSA. Computational approach based on a particle swarm optimizer for microwave imaging of two-dimensional dielectric scatterers[J]. IEEE Trans. Microw. Theory Techn., 2005, 53(5):1761-1776.

刘昆, 廖成, 卫涛, 等. 基于时域有限元近场单站导体柱微波成像[J]. 电波科学学报, 2008, 23(5):969-972. LIU Kun, LIAO Cheng, WEI Tao, et al. Near-field monostatic microwave imaging of conductor cylinder based on time-domain finite element[J]. Chinese Journal of Radio Science, 2008, 23(5):969-972. (in Chinese)

QING Anyong. Electromagnetic inverse scattering of multiple perfectly conducting cylinders by differential evolution strategy with individuals in groups(GDES)[J]. IEEE Transactions on Antennas and Propagation, 2004, 52(5):1223-1229.

REKANOS I T, RAISANEN A. Microwave Imaging in the time domain of buried multiple scatterers by using an FDTD-based optimization technique[J]. IEEE Transactions on Magnetics, 2003, 39(3):1381-1384.

WEI Tao. Study for Ultra Wideband Microwave Imaging of Conductor Objects[D]. Chengdu:Doctorate dissertation of SouthWest Jiaotong University, 2008.

CUI T J, CHEW W C, YIN X X, et al. Study of resolution and super resolution in electromagnetic imaging for half-space problems[J]. IEEE Trans. Antennas Propag., 2004, 52(6):1398-1411.

DONELLI M, FRANCESCHINI G, MARTINI A, et al. An integrated multiscaling strategy based on a particle swarm algorithm for inverse scattering problems[J]. IEEE Trans. Geosci. Remote Sensing, 2006, 44(2):298-312.

廖成, 卫涛, 陈伟. 整数微分进化策略及其在微波成像中的应用[J]. 西南交通大学学报, 2007, 42(6):647-652. LIAO Cheng, WEI Tao, CHEN Wei. Integer coded differential evolution strategy and application to microwave imaging[J]. Journal of Southwest Jiaotong University, 2007, 42(6):647-652. (in Chinese)

CAORSI S, DONELLI M, MASSA A, et al. Detection of buried objects by an electromagnetic method based on a differential evolution approach[C]//Proceedings of the 21st IEEE Instrumentation and Measurement Technology Conference, 2004:1107-1111.

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最新公告

介质圆柱的单站微波成像方法

作者简介:
刘昆(1979-),男,安徽人,2008年获得西南交通大学电磁场与微波技术专业博士学位。现任成都信息工程学院电子工程学院讲师,主要研究方向为计算电磁学,电磁散射与逆散射,优化算法研究。

通信作者:
刘昆 E-mail:liukun@cuit.edu.cn

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A near-field monostatic microwave imaging method for dielectric cylinder

计量

目录

最新公告

介质圆柱的单站微波成像方法

作者简介: 刘昆(1979-),男,安徽人,2008年获得西南交通大学电磁场与微波技术专业博士学位。现任成都信息工程学院电子工程学院讲师,主要研究方向为计算电磁学,电磁散射与逆散射,优化算法研究。

通信作者: 刘昆 E-mail:liukun@cuit.edu.cn

计量

出版历程

A near-field monostatic microwave imaging method for dielectric cylinder

计量

出版历程

目录

作者简介:
刘昆(1979-),男,安徽人,2008年获得西南交通大学电磁场与微波技术专业博士学位。现任成都信息工程学院电子工程学院讲师,主要研究方向为计算电磁学,电磁散射与逆散射,优化算法研究。

通信作者:
刘昆 E-mail:liukun@cuit.edu.cn