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Filtering Outliers in GNSS Time Series Data in Real-Time Bridge Monitoring
Real-time GNSS data plays a crucial role in structural health monitoring and early warning in bridge displacement monitoring. Outliers in the range of observations may lead to wrong assessments and maintenance plans. However, outliers are un-avoiding in GNSS time series data caused by various reasons and need to remove for further steps of analysis. The paper studies the ability to filter outliers of two algorithms, including moving average and moving median with different sizes of moving windows. At the same time, the paper also compares the sensitivity of both algorithms with the same set of data and moving windows. The study uses real-time displacement data from P5U GNSS devices of the CHC navigation brand in Dachongyong Bridge, Naning province, China. The results show that these two algorithms can be applied for filtering outliers, and the sensitivity is compared together as well.
Filtering Outliers in GNSS Time Series Data in Real-Time Bridge Monitoring
Real-time GNSS data plays a crucial role in structural health monitoring and early warning in bridge displacement monitoring. Outliers in the range of observations may lead to wrong assessments and maintenance plans. However, outliers are un-avoiding in GNSS time series data caused by various reasons and need to remove for further steps of analysis. The paper studies the ability to filter outliers of two algorithms, including moving average and moving median with different sizes of moving windows. At the same time, the paper also compares the sensitivity of both algorithms with the same set of data and moving windows. The study uses real-time displacement data from P5U GNSS devices of the CHC navigation brand in Dachongyong Bridge, Naning province, China. The results show that these two algorithms can be applied for filtering outliers, and the sensitivity is compared together as well.
Filtering Outliers in GNSS Time Series Data in Real-Time Bridge Monitoring
Lecture Notes in Civil Engineering
Nguyen-Xuan, Tung (editor) / Nguyen-Viet, Thanh (editor) / Bui-Tien, Thanh (editor) / Nguyen-Quang, Tuan (editor) / De Roeck, Guido (editor) / Vu, Ngoc Quang (author) / Le, Van Hien (author)
International Conference on Sustainability in Civil Engineering ; 2022 ; Hanoi, Vietnam
Proceedings of the 4th International Conference on Sustainability in Civil Engineering ; Chapter: 67 ; 657-663
2023-08-13
7 pages
Article/Chapter (Book)
Electronic Resource
English
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