| 机动目标的时频变换ISAR成像仿真 |
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| 引用本文： | 郭琨毅,盛新庆,唐波.机动目标的时频变换ISAR成像仿真[J].北京理工大学学报,2009,29(2):152-156. |
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| 作者姓名： | 郭琨毅 盛新庆 唐波 |
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| 作者单位： | 北京理工大学,信息科学与技术学院电磁仿真中心,北京,100081;北京科技大学,通信与信息学院,北京,100083 |
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| 摘 要： | 针对机动飞行目标的成像难点,实施了基于时频变换的逆合成孔径雷达(ISAR)成像处理方案.与传统的点目标模型的回波模拟方法不同,该方案采用全波数值方法计算目标在飞行过程中瞬时位置、姿态下的散射场数据,再依据延时顺序将离散时刻的散射场数据叠加,最终获得雷达的回波数据.数值仿真结果验证了该方案的可行性.
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| 关 键 词： | 逆合成孔径雷达 机动目标 成像 时频变换 |
| 收稿时间： | 2008/3/20 0:00:00 |
ISAR Imaging Simulation Based on Time-Frequency Transform for Maneuvering Targets |
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| GUO Kun-yi,SHENG Xin-qing and TANG Bo.ISAR Imaging Simulation Based on Time-Frequency Transform for Maneuvering Targets[J].Journal of Beijing Institute of Technology(Natural Science Edition),2009,29(2):152-156. |
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| Authors: | GUO Kun-yi SHENG Xin-qing and TANG Bo |
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| Institution: | 1.Center for Electromagnetic Simulation;School of Information Science and Technology;Beijing Institute of Technology;Beijing 100081;China;2.School of Communication and Information;University of Science and Technology Beijing;Beijing 100083;China |
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| Abstract: | Two key problems for inverse synthetie aperture radar(ISAR) imaging simulation of maneuvering targets are the high accurate simulation of raw signal and high resolution imaging processing.Instead of the traditional point-target model for raw signal simulation,full-wave numerical method is used to compute the scattering field of maneuvering targets under instantaneous position and attitude.Following a sequence of time delay,the raw signal is obtained by overlapping the scattering field on discrete time.Accor... |
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| Keywords: | inverse synthetic aperture radar(ISAR) maneuvering targets imaging time-frequency transformation |
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