| Issue |
E3S Web Conf.
Volume 131, 2019
2nd International Conference on Biofilms (ChinaBiofilms 2019)
|
|
|---|---|---|
| Article Number | 01036 | |
| Number of page(s) | 6 | |
| DOI | https://doi.org/10.1051/e3sconf/201913101036 | |
| Published online | 19 November 2019 | |
A method for detecting and locating the gross error of tidal based on wavelet analysis
1
32023 Troop, Aerospace Photogrammetry, Dalian 116021, China
2
Department of Military Oceanography and Hydrography & Cartography, Dalian Naval Academy, Dalian 116018, China
3
Key Laboratory of Hydrographic Surveying and Mapping of PLA, Dalian Naval Academy, Dalian 116018, China
* Corresponding author: zjin_vic@163.com
Tidal harmonic constants are necessary data for the evaluation of tidal model, tidal prediction and chart datum. Compared with the wavelet multi-scale analysis model, a new method is put forward to detect and locate tidal discrete and continuous gross error. Based on the properties of the wavelets, the wavelet suitable for detecting the gross error of tidal is selected. And taking db6 wavelet as an example, the feasibility and effectiveness of this method are proved by experiments. The results show that the method can not only simultaneously detect and locate discrete gross error and continuous gross based on high frequency information, and can detect and locate the systematic deviation caused by the zero drift according to the low frequency information. Experimental result shows that the method is more simple, the efficiency and accuracy of detecting and locating gross error are improved.
© The Authors, published by EDP Sciences, 2019
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