| 引用本文: | 夏智勋,盛湘饶,唐国金.用建模前估计法辨识飞行器的气动参数.[J].国防科技大学学报,1998,20(6):8-11.[点击复制] |
| Xia Zhixun,Sheng Xiangrao,Tang Guojin.Identification of Aerodynamic Coefficients by Estimation-Before-Modeling Technique[J].Journal of National University of Defense Technology,1998,20(6):8-11[点击复制] |
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| 用建模前估计法辨识飞行器的气动参数 |
| 夏智勋, 盛湘饶, 唐国金 |
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(国防科技大学 航天技术系 湖南 长沙 410073)
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| 摘要: |
| 给出了一种利用飞行器飞行试验实测数据估算飞行器气动参数的建模前估计算法, 完成了某轴对称无控飞行器的非线性气动参数辨识。计算结果表明: 该方法计算过程简单、迅速, 可以作为快速估算飞行器气动参数的有力手段, 尤其适合于辨识大攻角下的气动参数。 |
| 关键词: 气动参数, 辨识, 建模 |
| DOI： |
| 投稿日期：1998-02-27 |
| 基金项目: |
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| Identification of Aerodynamic Coefficients by Estimation-Before-Modeling Technique |
| Xia Zhixun, Sheng Xiangrao, Tang Guojin |
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(Department of Aerospace Technology, NUDT, Changsha, 410073)
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| Abstract: |
| A nonlinear aerodynamic model has been identified by applying the estimation-before-modeling (EBM) technique to flight testing data. The two-part algorithm contains a nonlinear state estimator and a curve-fitting procedure. The results show that this technique is useful for quick determination of aerodynamic coefficients, and particularly applicable to nonlinear flight regimes, such as high angle-of-at tack regime. |
| Keywords: aerodynamic coefficients, identification, modelling |
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