Patent · US Active

Method of signal processing for high resolution bathymetric sidescan sonar

US7315487B2 · kind B2 · utility

0Cited by

3References

5Claims

0Family size

Assignee

INSTITUTE OF ACOUSTICS, CHINESE ACADEMY OF SCIENCES · CN

Inventors

Weiqing Zhu · Beijing, CN
Xiaodong Liu · Beijing, CN
Wen Xu · Beijing, CN

Key dates

Filing date	Jul 21, 2006
Grant date	Jan 1, 2008
Priority date	—
Expiry date	Jul 21, 2026

Classification

Technology area (CPC G)Physics
CPC primaryG01S15/8927
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A processing method of this invention relates to an angle of arrival estimation technique, where by a high resolution bathymetric sidescan sonar signal process method it measure the micro-geomorphy of the sea bottom. That is the multi-subarray sub-space fitting method. The invention shows that when the array elements number is fixed, no matter there is mutual coupling or not between array elements, there exists one subarray which has the smallest phase estimation standard deviation, the method of this invention overcomes the phase error caused by mutual coupling and enhances the measurement precision.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.