长航时高精度惯导系统的垂线偏差补偿算法
秦岭 ( 航空工业第一飞机设计研究院 )
https://doi.org/10.37155/2717-5197-0308-6Abstract
本文通过分析常用重力场模型,在理想模型基础上,通过分层插值方法实时估算垂线偏差数据,该算法相比高阶球谐重力场模型计算而言,其实时性和数据存储复杂度都有很大优势,从仿真结果亦可得出其计算精度几乎没有损失,说明该算法的有效性在工程中具有较好的借鉴作用。
Keywords
重力场;垂线偏差;直接线性差值;最小二乘法Full Text
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