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电磁目标的探测对通信而言有着十分重要的意义。本文描述一种收敛迅速、结果准确、抗强随机噪声的探测二维电磁目标的新方法。首先从体等效原理出发得到一个积分方程组，此方程组可求解散射问题。随后，对此方程组求变分，变形后得到散射场变化与介电参数变化之间关系的矩阵方程，即反演方程。文中列举了几个例子，通过数值实验结果证明本法收敛速度快、反演精度高、适应复杂目标的能力强，能抗强随机噪声干扰
The detection of electromagnetic targets is of great importance to communications. This paper describes a new method of detecting two-dimensional electromagnetic targets with fast convergence, accurate results and strong random noise. First of all, from the body equivalent principle, we get an integral equation system, which can solve the scattering problem. Subsequently, the system of equations is divided into points, and the matrix equation of the relationship between the change of the scattering field and the change of the dielectric parameters is obtained, that is, the inversion equation. A few examples are given in this paper. The results of numerical experiments show that this method has the advantages of fast convergence rate, high precision of inversion, strong ability of adapting to complicated targets, robust against random noise