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经验贝叶斯岭估计在加速度计标定中的应用

DOI: doi:10.3969/j.issn.1006-7043.2011.05.006

Keywords: 加速度计, 正交双表g??2观测模型, 复共线性, 经验贝叶斯岭估计??

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Abstract:

针对高精度加速度计在重力场的标定试验,为了消除正交双表g??2观测模型引起系统复共线性的影响和提高加速度计模型系数的辨识精度, 文中提出了一种经验贝叶斯岭估计辨识方法并应用于正交双表误差模型的参数辨识中.从仿真分析和实验结果中看出,与传统的最小二乘法相比,经验贝叶斯岭估计能够消除系统的复共线性,可以分离出二次项系数??K????2,且辨识精度较高.

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