Method and sonar device for determining the speed of movement of a naval vehicle in relation to the sea bed
US10073175B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 24, 2015 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Aug 7, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/588
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Sonar intended to be carried by a naval vehicle including at least one element for transmitting an acoustic signal, at least one element for receiving the acoustic signal transmitted and reflected on the sea bed and at least two phase centers (PC1, PC2) that are disposed along a first and a second axis (v1, v2), respectively, forming an interferometric antenna. The sonar includes elements for determining the speed of movement of the vehicle as a function of the computed value of the relative trim angle (β) formed between a straight line (d1) that is perpendicular to the axes (v1, v2) of the phase centers and a straight line (d2) that is perpendicular to the sea bed (F) and of the value determined for the angle of sight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.