现代防御技术 ›› 2026, Vol. 54 ›› Issue (5): 102-112.DOI: 10.3969/j.issn.1009-086x.2026.05.008

• 论文 • 上一篇    下一篇

球面高斯径向基的空间目标RCS稀疏重构

魏明山1, 吕青1, 全刚1, 刘光花2   

  1. 1.中国人民解放军63623部队
    2.中国人民解放军63601部队
  • 收稿日期:2025-07-09 修回日期:2025-09-06 出版日期:2026-10-28 发布日期:2026-11-03
  • 作者简介:魏明山(1974-),男,甘肃兰州人。高工,学士,研究方向为航天测控和雷达识别技术。

Sparse Reconstruction of Space Target RCS Based on Spherical Gaussian Radial Basis

Mingshan WEI1, Qing LÜ1, Gang QUAN1, Guanghua LIU2   

  1. 1.PLA 63623 Troop
    2.PLA 63601 Troop
  • Received:2025-07-09 Revised:2025-09-06 Online:2026-10-28 Published:2026-11-03

摘要:

雷达散射截面RCS是当前空间目标识别领域的重要技术手段,但单一航迹RCS观测因视角受限难以全面表征目标特性。针对单站雷达获取的未知目标多航迹RCS数据稀疏性问题,借鉴高程等地理信息区域化稀疏重构插值思想,用球面径向基函数建立了目标RCS的分布模型,通过广义交叉验证准则进行了高斯基函数带宽因子选择,实现了多航迹稀疏测量下的目标区域RCS重构。研究为多视角RCS数据的特征级融合提供了理论基础,对空间目标特性库构建及识别应用具有实践指导价值。

关键词: 雷达目标散射截面, 稀疏重构, 球面径向基函数, 广义交叉验证准则, 核函数

Abstract:

Radar cross section (RCS) is a critical technical approach in the field of space target recognition, yet single-track RCS observations struggle to comprehensively characterize target properties due to limited viewing angles. To address the sparsity of multi-track RCS data acquired by a monostatic radar for unknown targets, this study draws inspiration from the idea of regionalized sparse reconstruction interpolation used for geographic information such as elevation and establishes a distribution model of target RCS using spherical radial basis functions (SRBFs). The generalized cross-validation (GCV) criterion is adopted to optimize the bandwidth factor of Gaussian basis functions, achieving the reconstruction of target region RCS from sparse multi-track measurements. This research provides a theoretical foundation for feature-level fusion of multi-perspective RCS data, offering practical guidance for the construction of space target signature databases and their applications in target recognition.

Key words: radar cross section (RCS), sparse reconstruction, spherical radial basis functions (SRBFs), generalized cross-validation (GCV) criterion, kernel function

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