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Dynamic Error Elimination Method for Strapdown Dynamic Gravimetry
DOI:10.1109/LGRS.2022.3168063.png)
摘要
En 中文
In view of the fact that there are dynamic errors in the strapdown dynamic gravimetry, based on the analysis of the error mechanism of the strapdown dynamic gravimetry, a general model to compensate the dynamic error of the strapdown dynamic gravimetry is proposed, and the constraints are established by using the correlation analysis; then, the parameters of the model are estimated. The effectiveness of the proposed method is verified by using the strapdown airborne gravimetry data under the undulated flight conditions. The results show that the repeatability of the repeated gravity measurements under 160-s filtering is improved from 1.41 to 0.70 mGal, while the result under 300-s filtering is 0.62 mGal. It shows that this method can effectively eliminate the dynamic error while maintaining the spatial resolution.
Keyword:
Gravity
Gravity measurement
Mathematical models
Filtering
Dynamics
Earth
Aircraft
Correlation analysis
dynamic error
repeatability
strapdown dynamic gravimetry
期刊
IF:
16.4
论文数:
1.0W
被引数:
5.1K
机构
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