Modern Defense Technology ›› 2026, Vol. 54 ›› Issue (5): 102-112.DOI: 10.3969/j.issn.1009-086x.2026.05.008

• PAPERS • Previous Articles     Next Articles

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

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
  • 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。

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

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

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