高分辨距离像回波模拟与验证

doi:10.16182/j.issn1004731x.joss.20-FZ0463

系统仿真学报 ›› 2020, Vol. 32 ›› Issue (11): 2218-2225.doi: 10.16182/j.issn1004731x.joss.20-FZ0463

• 物理效应/模拟器仿真技术 • 上一篇下一篇

高分辨距离像回波模拟与验证

李小琳^1,2, 程禹¹, 臧海飞¹, 汪书阁¹, 刘栗¹, 袁晴晴¹

1.上海机电工程研究所,上海 201109;
2.上海大学,上海 200072

收稿日期:2020-04-28 修回日期:2020-07-10 出版日期:2020-11-18 发布日期:2020-11-17
作者简介:李小琳(1979-),男,河南开封,博士生,高工,研究方向为通信与信息工程、半实物仿真技术等;程禹(1993-),男,河北,硕士,研究方向为仿真控制。

Echo Simulation and Verification of High Resolution Range Profile

Li Xiaolin^1,2, Cheng Yu¹, Zang Haifei¹, Wang Shuge¹, Liu Li¹, Yuan Qingqing¹

1. Shanghai Electro-Mechanical Engineering Institute,Shanghai 201109,China;
2. Shanghai University,Shanghai 200072,China

Received:2020-04-28 Revised:2020-07-10 Online:2020-11-18 Published:2020-11-17

摘要/Abstract

摘要： 为了在试验室环境下实现对高分辨距离像的回波模拟和成像验证,构建了多散射点和宽带LFM(Linear Frequency Modulation)回波信号模型,描述了回波模拟过程中关键的时域卷积和精确延时实现方法。根据被试设备不同的信号带宽形式,应用宽带回波模拟器对相应的高分辨距离像回波进行了射频实现。通过与目标特性建模软件的数字仿真结果进行对比,验证了高分辨距离回波模拟的逼真度。以某飞机类扩展目标为研究对象进行了仿真验证,实现了优于0.1 m的距离分辨率。

关键词: 宽带, 高分辨, 一维距离像, 精确延时

Abstract: In order to realize the echo simulation and verification of high-resolution range profile in laboratory environment, the multi-scattering point model and wideband LFM echo signal model are given, and the time-domain convolution and high-precision delay realization methods in echo simulation process are described. According to the different signal bandwidth forms of the tested equipments, a wideband echo simulator is used to realize the corresponding high-resolution range image echo. By comparing with the digital simulation results of the target characteristic modeling software, the fidelity of the high-resolution range echo simulation is verified. Simulation verification is carried out with an aircraft expansion target as the research object, and the range resolution better than 0.1 m is achieved.

Key words: wideband, high-resolution, one-dimensional range profile, high-precision delay

中图分类号:

TN957.51

李小琳, 程禹, 臧海飞, 汪书阁, 刘栗, 袁晴晴. 高分辨距离像回波模拟与验证[J]. 系统仿真学报, 2020, 32(11): 2218-2225.

Li Xiaolin, Cheng Yu, Zang Haifei, Wang Shuge, Liu Li, Yuan Qingqing. Echo Simulation and Verification of High Resolution Range Profile[J]. Journal of System Simulation, 2020, 32(11): 2218-2225.

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高分辨距离像回波模拟与验证

Echo Simulation and Verification of High Resolution Range Profile

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