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    • 6. 发明公开
    • PROCÉDÉ ET DISPOSITIF DE MÉTROLOGIE POUR LA CALIBRATION DE LA GÉOMÉTRIE D'UN RÉSEAU DE BALISES ACOUSTIQUES SOUS-MARINES
    • 校准几何海洋水声信标组成的网络计量学的方法和装置
    • EP3004912A1
    • 2016-04-13
    • EP14738544.7
    • 2014-05-28
    • iXBlue
    • CHARLOT, DidierPENNEC, Sébastien
    • G01S1/76G01S15/87G01S7/52
    • G01S7/52004G01S1/76G01S15/874
    • The invention relates to a metrology method and device for calibrating the geometry of a network of Nb stationary underwater acoustic beacons (11, 12, 13, 14) defining a field of beacons, implementing a moving body (20) comprising means for receiving acoustic signals from each of the beacons of the network, respectively. According to the invention, the metrology method includes the following steps: acquiring Nm series of Nb acoustic measurements of the relative distance between the moving body and each beacon of the network, respectively, during a movement of the moving body; calculating a numeric function C from the series of acoustic measurements of the relative distances and parameters representing relative positions of the beacons; executing an algorithm for minimising the numeric function C in order to deduce therefrom an estimation of the values of the relative position parameters of each of the beacons of the network.
    • 用于校准的Nb固定水声信标(11,12,13,14)的一个网络的几何形状 - 定义的信标字段中,实现一个移动体(20)包括对从每个接收的声信号元件A计量方法和装置 分别网络的信标,。 计量方法,包括以下步骤:获取所述移动体的移动过程中NM系列移动体和所述网络,分别的每个信标之间的相对距离的铌声学测量的; 计算从所述系列的相对距离和表示信标的相对位置参数的声学测量的数值函数C; 为最小伊辛数字函数C为了算法的执行从每个网络的信标的相对位置的参数的值的估计推断那里。
    • 7. 发明公开
    • SONAR FRONTAL AMELIORE
    • EP2018579A2
    • 2009-01-28
    • EP07766048.8
    • 2007-05-15
    • Ixsea
    • JEAN, FrédéricMOSCA, Frédéric
    • G01S15/89
    • G01S15/89G01S7/524
    • The invention relates to a frontal sonar for observing marine life, characterised in that it comprises means used to insonify an area of the marine floor divided into M sectors and able to carry out a characteristic insonification of each of the sectors of the area during a recurrent use of the sonar; and reception means comprising a physical antenna consisting of a linear network of K transducers, said antenna being lacunary and therefore ambiguous in that it defines N image lobes. The invention is also characterised in that each of the characteristically insonified sectors is associated with a single image lobe defined by the antenna, thereby overcoming the ambiguity of the antenna.
    • 本发明涉及一种用于观察海洋生物的前方声纳,其特征在于,它包括用于将海底分成M个扇区的区域进行声波处理的装置,并且能够对经过周期性处理的区域中的每个扇区进行特征性声贯化 声纳的使用; 以及包括由K个换能器的线性网络组成的物理天线的接收装置,所述天线是有空隙的,因此它定义了N个图像波瓣。 本发明的特征还在于,每个特征性声化的扇区与由天线定义的单个图像波瓣相关联,从而克服了天线的模糊性。