标题： 使用通用电磁仿真器生成真实物体的SAR图像 显示英文标题

标题： Generation of SAR Image for Real-life Objects using General Purpose EM Simulators

摘要： 在与机载雷达相关的应用中，仿真一直扮演着重要的角色。 这主要是因为缺乏所需数据以及在受控环境下收集数据的困难双重原因。 一个简单的例子就是纯多极化雷达数据的采集。 即使雷达硬件设计和信号处理领域已经取得了显著的发展，直到现在，纯多极化数据的采集仍然是雷达系统设计师面临的挑战。 直到最近，雷达信号回波的计算机模拟能力只对少数人可用。 这是因为一些主流电磁（EM）模拟器的成本高昂，其次是因为许多此类EM模拟器面向的是限制性市场。 然而，由于电磁仿真领域的快速发展，许多通用的EM模拟器现在可以用来模拟真实目标的雷达回波。 本文阐述了使用通用EM模拟器生成地面目标合成孔径雷达（SAR）图像数据库的步骤。 同时通过一些示例图像展示了使用通用EM模拟器生成的SAR图像的质量。 显示英文摘要

摘要： In the applications related to airborne radars, simulation has always played an important role. This is mainly because of the two fold reason of the unavailability of desired data and the difficulty associated with the collection of data under controlled environment. A simple example will be regarding the collection of pure multipolar radar data. Even after phenomenal development in the field of radar hardware design and signal processing, till now the collection of pure multipolar data is a challenge for the radar system designers. Till very recently, the power of computer simulation of radar signal return was available to a very selected few. This was because of the heavy cost associated with some of the main line electro magnetic (EM) simulators for radar signal simulation, and secondly because many such EM simulators are for restricted marketting. However, because of the fast progress made in the field of EM simulation, many of the current generic EM simulators can be used to simulate radar returns from realistic targets. The current article expounds the steps towards generating a synthetic aperture radar (SAR) image database of ground targets, using a eneric EM g simulator. It also demonstrates by the help of some example images, the quality of the SAR mage generated i using a general purpose EM simulator.