基于域积分方程的对比源反演算法在三维微波成像中的应用

Application of the Contrast Source Inversion Algorithm for Three Dimensional Microwave Imaging Based on Domain Integral Equation

描述了基于三维域积分方程的非线性对比源反演算法在三维微波成像中的应用,提出了在对比源反演算法中采用频率跳变的处理方法重建放置在暗室内的两个均质的三维电介质目标。三维实测微波数据由法国菲涅尔研究所提供,采用了多频率、多收发设置的测量方式。通过上述成像处理方法对三维实测数据的重建结果的展示和比较,验证了采用频率跳变方法的三维对比源反演算法的精确性和可行性,是一种非常有前景的解决三维微波成像问题的处理方法。

This paper describes the three-dimensional（3-D） domain integral equation based method,the nonlinear contrast source inversion（CSI） algorithm for the 3-D microwave imaging.The frequency Hopping（FH） approach is applied in the CSI algorithm for reconstructing two homogeneous 3-D dielectric targets in an anechoic chamber.The experimental microwave data are supplied from the Fresnel institute using the multi-frequency multi-bistatic measurements.The inversion results,which are presented and compared,verify the accuracy and feasibility of the 3-D CSI algorithm with the FH approach,which is a very promising method for the 3-D microwave imaging.