| 基于时隙差的电磁散射机理分解技术 |
| |
| 引用本文： | 李建周,刘祥威. 基于时隙差的电磁散射机理分解技术[J]. 系统工程与电子技术, 2020, 42(3): 513-520. DOI: 10.3969/j.issn.1001-506X.2020.03.002 |
| |
| 作者姓名： | 李建周 刘祥威 |
| |
| 作者单位： | 西北工业大学电子信息学院, 陕西 西安 710129 |
| |
| 基金项目： | 陕西省重点研发计划国际科技合作项目(2017KW-007);2017年度CALT Foundation基金资助课题 |
| |
| 摘 要： | 目标总散射场往往包含多种不同的散射机理,分解不同的散射机理,对于复杂目标电磁散射认知、特征和目标识别及散射特性控制具有重要意义。基于不同散射机理回波到达接收机具有时隙差这一物理基础,实现了镜面散射、多次散射等散射机理的分解。最后给出了多个模型的仿真实例,在其时频分析结果、雷达成像和雷达散射截面对比结果中,可以清楚地观察到不同散射机理得到了有效的分解,验证了本文方法的可行性和正确性。
|
| 关 键 词： | 散射机理分解 时隙差 时频分析 目标识别 |
| 收稿时间： | 2019-03-04 |
Decomposition of scattering mechanisms based on time slot difference |
| |
| Jianzhou LI,Xiangwei LIU. Decomposition of scattering mechanisms based on time slot difference[J]. System Engineering and Electronics, 2020, 42(3): 513-520. DOI: 10.3969/j.issn.1001-506X.2020.03.002 |
| |
| Authors: | Jianzhou LI Xiangwei LIU |
| |
| Affiliation: | School of Electronics and Information, Northwestern Polytechnical University, Xian 710129, China |
| |
| Abstract: | The target total scattering field often contains many different scattering mechanisms. Decomposing different scattering mechanisms will improve the knowledge of electromagnetic scattering for complex targets, and will be of great significance for feature recognition and scattering characteristics control. In this paper, the different scattering mechanisms such as specular scattering and multiple scattering are decomposed based on the physical basis of the arrival of the echoes of the different scattering mechanisms. Finally, several examples are given. From the time-frequency analysis results, radar imaging and radar cross section comparison results, it can be clearly observed that different scattering mechanisms are effectively decomposed, which proves the feasibility and correctness of the proposed method. |
| |
| Keywords: | scattering mechanism decomposition time slot difference time-frequency analysis target recognition |
|
| 点击此处可从《系统工程与电子技术》浏览原始摘要信息 |
|
点击此处可从《系统工程与电子技术》下载全文 |
|
