Sparse optimization method based on cross-shaped three-dimensional imaging sonar array
US11874371B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2018 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | Apr 18, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/8993
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention a sparse optimization method based on cross-shaped three-dimensional imaging sonar array, comprising the following steps: first, constructing a beam pattern simultaneously applicable to a near field and a far field based on a cross-shaped array; then, constructing an energy function required by sparse optimization according to the beam pattern; then, introducing an array element position disturbance into a simulated annealing algorithm to increase the degree of freedom of the sparse process and increase the sparse rate of the sparse array, and using the simulated annealing algorithm to sparse optimization of the energy function; finally, after optimization, a sparse optimization cross-shaped array is obtained. The present invention ensures that the three-dimensional imaging sonar system has the desired performance at any distance, and greatly reduces the hardware complexity of the system. It provides an effective method to achieve high performance and ultra-low complexity 3D imaging sonar system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.