System for canceling interferers from broadband active sonar signals using adaptive beamforming methods
US6058075A · kind A · utility
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Key dates
| Filing date | Mar 4, 1999 |
| Grant date | May 2, 2000 |
| Priority date | — |
| Expiry date | Mar 4, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S367/905
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An adaptive beamforming system for broadband sonar with a convergence time on the order of the pulse duration and effective interference nulling capabilities which enhance desirable echoes. The method uses an element based time implementation algorithm in which beam data that is formed in the direction of each interferer is successively subtracted from the element data using an adaptive FIR filter. The system can be applied to impulsive source sonar data and passive sonar data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.