Research Article
Extraction Method of Vibroseis Phase Signal Based on Time-Varying Narrowband Filtering
@INPROCEEDINGS{10.1007/978-3-031-28867-8_4, author={Haochen Zhang and Chen Xian}, title={Extraction Method of Vibroseis Phase Signal Based on Time-Varying Narrowband Filtering}, proceedings={Advanced Hybrid Information Processing. 6th EAI International Conference, ADHIP 2022, Changsha, China, September 29-30, 2022, Proceedings, Part II}, proceedings_a={ADHIP PART 2}, year={2023}, month={3}, keywords={Time-Varying narrowband filtering Vibroseis Seismic phase signal Extraction method Sinusoidal signal Harmonic interference noise}, doi={10.1007/978-3-031-28867-8_4} }- Haochen Zhang
Chen Xian
Year: 2023
Extraction Method of Vibroseis Phase Signal Based on Time-Varying Narrowband Filtering
ADHIP PART 2
Springer
DOI: 10.1007/978-3-031-28867-8_4
Abstract
When the phase travel time value increases continuously, the accuracy of the vibroseis phase signal extraction method will be disturbed. Aiming at this problem, a time-varying narrow-band filtering based vibroseis phase signal extraction method is designed. Calculate the linear sine signal expression formula, build a vibroseis simulation model, in the entire relevant time domain, the scanning signal satisfies the set frequency bandwidth, extract the characteristics of the noise generation mechanism, use the time-varying narrowband filter to scan the global seismic phase, and near-field data As a reference model, set the seismic phase signal extraction mode. Experimental results: The average extraction accuracy of the vibroseis phase signal extraction method in this paper and the other two vibroseis phase signal extraction methods are: 76.798%, 66.359%, and 66.694%, respectively, indicating that the band becomes narrower when fully combined. After filtering technology, the accuracy of the designed vibroseis phase signal extraction method has been improved.
