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基于优化理论的GPS定位解算算法

, PP. 1219-1223

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Abstract:

针对传统定位解算方法存在的问题,基于优化理论的思想提出了一种新的定位解算方法——基于优化理论的最大后验估计算法.介绍了该方法的基本原理,详细给出了算法的推导过程,该方法用优化理论的思路求解系统状态量的最大后验概率估计值.它是从系统状态量、观测量的联合概率密度函数出发,将估计问题转化成优化问题,用优化问题的解法对系统的状态进行估计.在此基础上,用仿真实验验证了该方法进行定位解算的有效性.实验结果表明该方法完全解决了定位解算中的非线性问题,并拥有较高的定位精度.

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