| 摘要: |
| 传统的基于RCS数据的卫星尺寸估计方法主要采用椭球体模型进行等效，这种估计方法对矩形体卫星尺寸估计不够准确。本文主要研究矩形体卫星的尺寸估计技术，基于构成矩形体卫星的矩形平板的RCS等效公式，研究矩形平板的长和宽与RCS序列特征的关系；通过矩形体卫星运动姿态建模，实现卫星在轨运动姿态角计算。在上述研究基础之上，提出基于RCS数据的矩形体卫星尺寸估计方法，能够实现利用RCS数据对矩形体卫星的长和宽进行估计。实验结果表明，该方法能有效提升矩形体卫星的尺寸估计准确度，为空间目标特征识别提供新的方法和思路。 |
| 关键词: 矩形体卫星 雷达截面积 卫星姿态 尺寸估计 |
| DOI：DOI:10.3969/j.issn.1672-2337.2025.05.010 |
| 分类号:TN951 |
| 基金项目:国防科技创新特区项目（No.CX2023-02-04-00） |
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| Research on Size Estimation of Rectangular Satellite Based on RCS Data |
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ZHANG Xian, YANG Bowei
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School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310007, China
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| Abstract: |
| The traditional satellite size estimation method based on RCS data mainly uses ellipsoid model for equivalence, which is not accurate enough for estimating the size of rectangular satellites. This article mainly studies the size estimation technology of rectangular satellite. Based on the RCS equivalent formula of the rectangular flat plate that constitutes the rectangular satellite, the relationship between the length and width of the rectangular flat plate and the RCS sequence characteristics is studied; By modeling the motion attitude of a rectangular satellite, the calculation of the satellite’s in orbit motion attitude angle has been achieved. Based on the above research, a method for estimating the size of rectangular satellite based on RCS data is proposed, which can estimate the length and width of rectangular satellite by using RCS data. The experimental results show that this method can effectively improve the accuracy of size estimation for rectangular satellites, providing a new method and idea for spatial target feature recognition. |
| Key words: rectangular satellite radar cross section satellite attitude size estimation |
