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- Title
基于简化惯导的地下管线轨迹测量方法.
- Authors
李昊; 陈強; 徐一雄
- Abstract
In view of the high cost of current underground pipeline trajectory measurement system based on inertial navigation principle, the cost of the system was effectively reduced by reducing the number of inertial sensors. Firstly, the fonnula of using only uniaxial angular velocity and biaxial acceleration data to restore pipeline trajectory was derived. Then, the complete ensemble empirical mode decomposition with adaptive noise was used to process the original data of inertial sensors. Finally, the pipeline trajectory was reconstructed by using the derived formula and the processed data. In the 75 m long test pipeline, the maximum deviation of the reconstruction track is less than 0.2% of the total length, and the cost of the sensor is reduced by half, which has strong practical value.
- Subjects
HILBERT-Huang transform; UNDERGROUND pipelines; INERTIAL navigation systems; ANGULAR velocity; OPTICAL gyroscopes
- Publication
Journal of Shanghai University of Engineering Science / Shanghai Gongcheng Jishu Daxue Xuebao, 2022, Vol 36, Issue 4, p364
- ISSN
1009-444X
- Publication type
Article