Sediment classification method and system based on bottom echo information of deep-sea multibeam water column

US12360270B1 · kind B1 · utility

Assignee

• SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY · CN

Inventors

• Xiaodong Cui · Dongguan, CN
• Feihu Zhang · Beijing, CN
• Fanlin Yang · Shandong, CN
• Xianhai Bu · Shandong, CN
• Tianyu Yun · Shandong, CN
• Feng Wang · Beijing, CN
• Wenjun Li · Beijing, CN

Key dates

• Filing date: Nov 8, 2024
• Grant date: Jul 15, 2025
• Expiry date: Nov 8, 2044

Classification

• Technology area (CPC G): Physics
• CPC primary: G01V2210/661
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Disclosed is a sediment classification method and system based on bottom echo information of a deep-sea multibeam water column, falling within the technical field of seabed sediment classification. Multidimensional features of seabed multibeam time series are extracted by using multibeam water column data, and multidimensional features of seabed spots are constructed by fusing an angle response curve; double-waveform spectrum comparison of original sample point waveform with seabed measured point waveform is performed, and two groups of corresponding waveforms are matched by using Cosine Similarity to expand original sample points; and the reliability of classification results is improved. In the present disclosure, the transformation from hard to soft classification is realized, and the seabed habitat inversion of complex mixed sediment in a deep sea is further realized.