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/10.37155/2717-5197-0308-6

Abstract

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

PDF

References

[1]Jekeli C. Inertial Navigation Systems with Geodetic Application[M]. Berlin:deGruyter,2001
[2]Kwon, J.H. Gravity Compensation Methods for Precision INS[C]. Department of Civil and Environmental Engineering and Geodetic Science. Columbus, Ohio, 2004.6.8.
[3]Grejner-Brzeinska, D.A, Yi, Toth,C. Enhanced Gravity Compensation for Improved Inertial Navigation Accuracy[C]. Department of Civil and Environment Engineering and Geodetic Science. Ohil, 2003.9.13.
[4]宁津生.地球重力场模型及其应用[J].冶金测绘,1994.3(2):1-8.
[5]卢鑫.长航时高精度惯性导航系统重力补偿研究[D].国防科学技术大学,2010.11.

Copyright © 2022 秦岭 Creative Commons License Publishing time:2021-08-31
This work is licensed under a Creative Commons Attribution 4.0 International License