The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 2021
Filed:
Mar. 13, 2015
Thales, Courbevoie, FR;
THALES, Courbevoie, FR;
Abstract
A synthetic aperture sonar moving along a first axis comprises an emitting device configured to emit, in each ping, at least one acoustic pulse toward an observed zone in a set of sectors comprising at least one sector. The sonar comprises a first physical receiving antenna extending along the first axis allowing measurements of backscattered signals to be acquired and a processing device configured to form, over R pings, for each sector, synthetic aperture beams from measurements of signals backscattered by the observed zone and generated by acoustic pulses emitted in the sector. The sonar comprises at least one gyrometer. The processing device is configured to correct for variations in the movement of the first receiving antenna during the formation of the synthetic aperture beams of the set of sectors by carrying out an autocalibration by intercorrelation of the successive pings.