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1 result(s) for "四元数微分方程"
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四元数微分方程的高分辨率卫星遥感影像外方位元素求解
通过对高分辨率卫星遥感影像成像机理进行分析,提出一种基于四元数微分方程的外方位元素求解方法。该方法采用四元数描述影像成像姿态,建立基于四元数微分方程的成像几何模型。为求解该模型,引入3个独立的解算参数,计算过程中不直接求解姿态四元数,而是解算参数,使得未知数个数与现有方法相同,并采用Tikhonov正则化理论进一步求解方程。试验结果表明该方法正确可靠,具有很好的稳定性和适应性,解算参数的引入效果显著,对定位精度有一定的提高,并且完全避免了三角函数运算。