Synthetic sonar antenna

Details Synthetic sonar antenna Synthetic sonar antenna

G - Physics

01

S

G01S 15/89 (2006.01) G01S 7/52 (2006.01)

Patent

CA 2494653

The invention relates to a synthetic sonar antenna and particularly to the self-calibration of such an antenna. The number of sensors of the reception antenna (101) is minimized by fixing the reduced pitch between the sensors, which is imposed by the precision of the self-calibration, exclusively at the two ends of the antenna. In an alternative embodiment, the reduced pitch is fixed to only one end of the antenna. The inventive synthetic sonar antenna allows the self-calibration to be made more precise by means of a smaller number of sensors than in prior art.

L'invention concerne une antenne sonar synthétique et plus particulièrement à l'autocalibration d'une telle antenne. Elle consiste à minimiser le nombre de capteurs de l'antenne de réception (101) en fixant le pas réduit entre les capteurs, imposé par la précision de l'autocalibration, uniquement aux deux extrémités de l'antenne. Selon une variante, le pas réduit est fixé qu'à une seule extrémité de l'antenne. Elle permet d'augmenter la précision de l'autocalibration avec un nombre de capteurs plus petit que dans l'art antérieur.

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