Method, device and system for underwater acoustic communication
US11757538B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2020 |
| Grant date | Sep 12, 2023 |
| Priority date | — |
| Expiry date | Jun 5, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63G2008/004
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for underwater acoustic communication includes steps of S1: capturing a synchronization signal using a cross-correlation operation; S2: performing time forward shifting and reversing processing and time backward shifting and reversing processing, respectively, on the synchronization signal to obtain a forward shifted time reversal coefficient and a backward shifted time reversal coefficient; S3: performing a convolution operation of the forward shifted time reversal coefficient and the backward shifted time reversal coefficient, respectively, with a subsequently captured information sequence to obtain a forward shifted time reversal output and a backward shifted time reversal output; S4: processing the forward shifted time reversal output and the backward shifted time reversal output, respectively, with a forward shift equalizer and a backward shift equalizer to obtain two sets of equalizer outputs; and S5: selecting one of the two sets of equalizer outputs with a smaller error for data decoding to obtain a desired signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.