| 基于改进3D-ESPRIT算法的GTD模型参数估计与目标识别 |
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| 引用本文： | 徐嘉华,张小宽,郑舒予,宗彬锋,郑书昌. 基于改进3D-ESPRIT算法的GTD模型参数估计与目标识别[J]. 系统工程与电子技术, 2021, 43(2): 336-342. DOI: 10.12305/j.issn.1001-506X.2021.02.07 |
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| 作者姓名： | 徐嘉华 张小宽 郑舒予 宗彬锋 郑书昌 |
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| 作者单位： | 1. 空军工程大学防空反导学院, 陕西 西安 7100512. 空军工程大学研究生院, 陕西 西安 7100513. 西安建筑科技大学, 陕西 西安 710055 |
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| 基金项目： | 国家自然科学基金(61701528);目标与环境电磁散射辐射国防科技重点实验室(STES201401-1)资助课题。 |
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| 摘 要： | 针对低信噪比条件下,传统的基于旋转不变技术的三维信号参数估计(three-dimensional estimating signal parameter via rotational invariance techniques,3D-ESPRIT)算法和平方前后向平滑的3D-ESPRIT(quadratic-forwa...
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| 关 键 词： | 参数估计 散射中心 几何绕射理论散射中心模型 3D-ESPRIT算法 目标识别 |
| 收稿时间： | 2020-05-19 |
GTD model parameter estimation and target recognition based on improved 3D-ESPRIT algorithm |
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| XU Jiahua,ZHANG Xiaokuan,ZHENG Shuyu,ZONG Binfeng,ZHENG Shuchang. GTD model parameter estimation and target recognition based on improved 3D-ESPRIT algorithm[J]. System Engineering and Electronics, 2021, 43(2): 336-342. DOI: 10.12305/j.issn.1001-506X.2021.02.07 |
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| Authors: | XU Jiahua ZHANG Xiaokuan ZHENG Shuyu ZONG Binfeng ZHENG Shuchang |
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| Affiliation: | 1. Air and Missile Defense College, Air Force Engineering University, Xi'an 710051, China2. Graduate school, Air Force Engineering University, Xi'an 710051, China3. Xi'an University of Architecture and Technology, Xi'an 710055, China |
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| Abstract: | Aiming at the problem that the traditional three-dimensional estimating signal parameter via rotational invariance techniques(3D-ESPRIT)algorithm and quadratic-forward-backward 3D-ESPRIT(Q-FB-3D-ESPRIT)algorithm significantly reduce the estimation accuracy of geometric theory of diffraction(GTD)model parameters under the condition of low signal to noise ratio(SNR),an improved polarized-Q-FB-3D-ESPRIT(PQ-FB-3D-ESPRIT)algorithm is proposed.Compared with the above two traditional algorithms,the improved algorithm increases the use of target polarization information and effectively extends the length of available electromagnetic scattering data.The simulation results show that the parameter estimation accuracy of the improved algorithm is higher than that of the other two algorithms,especially in the case of low SNR.In addition,the radar target recognition based on scattering center model is studied,and the simulation results further verify the feasibility of the proposed algorithm. |
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| Keywords: | parameter estimation scattering center geometric theory of diffraction(GTD)scattering center model three-dimensional estimating signal parameter via rotational invariance techniques(3D-ESPRIT)algorithm target recognition |
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