一种基于高频近似计算的舰船目标强散射源分析方法

A Method to Analyze The Strong Scattering Source of Ship Target Based on Approximate High-frequency Calculation

介绍了一种易于工程实现的舰船目标强散射源分析方法。该方法利用物理光学法、物理绕射理论和等效电磁流法等高频近似方法计算舰船目标后向散射回波,并通过二维雷达成像来分析其强散射源分布。通过仿真实验实现了舰船目标雷达后向散射回波计算与二维成像,并分析了强散射源分布,实验结果证明了该方法的可行性。

This paper introduces a method to analyze the strong scattering source of ship target,the method can be easily realized in engineering. The approximate high-frequency methods such as physical optical （PO） method,physical theory of diffraction （PTD）,and method of equivalent currents （MEC） are adopted to calculate the backscattering echo of ship target,and the two-dimen- sional radar imaging is used to analyze the strong scattering source distribution. This paper realizes the calculation of radar backscattering echo and two-dimensional imaging of ship target through the simulation experiment,and analyzes the distribution of strong scattering source. The experiment results prove the feasibility of this method.