时变海场景双基SAR回波实时模拟方法研究

doi:10.16182/j.issn1004731x.joss.19-FZ0446

系统仿真学报 ›› 2020, Vol. 32 ›› Issue (11): 2176-2184.doi: 10.16182/j.issn1004731x.joss.19-FZ0446

时变海场景双基SAR回波实时模拟方法研究

刁桂杰^1,2, 倪虹², 刘哲², 李洋³

1.复杂系统控制与智能协同技术重点实验室,北京 100074;
2.北京机电工程研究所,北京 100074;
3.火箭军装备部装备项目管理中心,北京 100085

收稿日期:2019-04-10 修回日期:2019-08-25 出版日期:2020-11-18 发布日期:2020-11-17
作者简介:刁桂杰(1982-),男,河北吴桥,博士,高工,研究方向为射频仿真、SAR仿真;倪虹(1974-),女,北京,硕士,研究员,研究方向为射频仿真、目标及干扰仿真;刘哲(1991-),女,河北邯郸,硕士,研究方向为射频仿真。

Research on Real-time Simulation Method of Bi-SAR Echo in Time-varying Sea Scene

Diao Guijie^1,2, Ni Hong², Liu Zhe², Li Yang³

1. Science and Technology on Complex System Control and Intelligent Agent Cooperation Laboratory,Beijing 100074,China;
2. Beijing Electro-mechanical Engineering Institute,Beijing 100074,China;
3. Equipment Project Management Center of Rocket Equipment Department,Beijing 100085,China

Received:2019-04-10 Revised:2019-08-25 Online:2020-11-18 Published:2020-11-17

摘要/Abstract

摘要： 基于时变海场景双站散射机理,结合双基合成孔径雷达(SAR,Synthetic Aperture Radar)成像几何模型,提出了一种时变海场景双基SAR射频回波信号实时模拟方法。针对时变海场景的复杂耦合散射,采用多径近似理论建立了双基SAR海面目标回波信号模型,提取了时变海面双基SAR系统响应函数,结合高性能计算技术、同步动态随机存取(SDRAM)技术以及全系统交换设计,实现了时变海场景双基SAR射频回波信号实时模拟,最后仿真测试结果验证了该方法的有效性。

关键词: 时变海场景, 双基SAR, 射频回波, 实时模拟

Abstract: Based on bistatic scattering mechanism and the geometric relationship of bistatic synthetic aperture radar (Bi-SAR), a real-time simulation method of Bi-SAR radio frequency echo in time-varying sea scene is proposed. For the couple scattering in time-varying sea scene, a Bi-SAR echo signal model is established on the basis of multipath scattering model. The Bi-SAR system response function for time-varying sea target is calculated in real-time, using high performance computing technology, high-capacity real-time access technology and full-switching system designing. The simulation results show the effectiveness of the method.

Key words: time varying sea scene, bistatic synthetic aperture radar, radio frequency echo, real-time simulation

中图分类号:

TP391.9

刁桂杰, 倪虹, 刘哲, 李洋. 时变海场景双基SAR回波实时模拟方法研究[J]. 系统仿真学报, 2020, 32(11): 2176-2184.

Diao Guijie, Ni Hong, Liu Zhe, Li Yang. Research on Real-time Simulation Method of Bi-SAR Echo in Time-varying Sea Scene[J]. Journal of System Simulation, 2020, 32(11): 2176-2184.

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时变海场景双基SAR回波实时模拟方法研究

Research on Real-time Simulation Method of Bi-SAR Echo in Time-varying Sea Scene

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