发表机构
Departamento de Matemática Aplicada a las TIC, ETSI de Telecomunicación, Universidad Politécnica de Madrid（马德里理工大学电信工程学院应用数学系）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
针对工业应用需精细采样计算单基地雷达角扫掠RCS的需求，本文提出一种降阶模型，结合开源积分方程求解器，实现快速全波RCS评估，通过多个雷达目标验证了方法的潜力。
AI 中文摘要
雷达散射截面（RCS）是雷达工程中的基础参数，决定了雷达系统对给定目标的可探测性。近期对极低可观测性（VLO）目标的关注度不断提升，因此需着力开发数值工具以准确预测理想电导体目标的电磁散射，积分方程方法是该任务的常用手段。然而，单基地RCS在单一角度下的全波计算耗时较长，更遑论以精细采样计算特定角区间内的RCS，而这正是工业应用的实际需求。本文提出一种用于快速全波单基地RCS评估的降阶模型，可轻松获取目标角域内的精细细节；采用开源积分方程求解器作为黑箱，获取不可穿透物体在特定入射角下的电磁散射结果。多个雷达目标将展示该模型阶数降阶方法的潜力与能力。
英文摘要
The radar cross section (RCS) is a fundamental parameter in radar engineering, as it determines the detectability of a given target by a radar system. Increasing interest in very low observability (VLO) targets has arisen recently. As a result, especial effort is put in developing numerical tools to accurately predict the electromagnetic scattering from perfect electric conductor objects. Integral equation methods are commonly used in this task. However, full-wave computation of the monostatic RCS at a single angle can be rather time-consuming, nevermind computing the RCS in a specific angular interval with a fine sampling. In fact, this is what is needed in industrial applications. A reduced-order model for fast full-wave monostatic RCS evaluation is proposed to easily achieve fine details in the desired angular domain. An open source integral equation solver, taken into account as a black box, is used to get the electromagnetic scattering in non-penetrable objects at some specific incident angles. Several radar targets will show the possibilities and capabilities of these model order reduction approaches.
