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    • 15. 发明授权
    • Sonar method and apparatus
    • 声纳法和仪器
    • US4561076A
    • 1985-12-24
    • US498778
    • 1983-05-27
    • Herbert Gritsch
    • Herbert Gritsch
    • G01S15/87G01S15/89
    • G01S15/87G01S15/003
    • A method and apparatus for underwater ranging with the aid of sonic pulses, by irradiating a given transmitting area with sonic energy pulses from a transmitter mounted in a marine vessel, receiving sonic energy echoes reflected from bodies in the transmitting area in a manner which is selective with respect to direction in a plurality of receiving sectors arranged in a fan shape, and associating the received echoes with respective reflection centers within the respective receiving sectors on the basis of associated sonic pulse travel times. Reception is carried out on a second marine vessel different from the vessel carrying the transmitter and which travels at a rearward offset position from the vessel carrying the transmitter at such a distance therefrom that the receiving sectors cover at least part of the given transmitting area, and the azimuthal width of the transmitting area is made very small. The associating operation includes determining the relative distance between the two vessels and the direction of the transmitting area, relative to the heading of the second vessel, at least at the moment of transmission of each sonic pulse, in order to associate the reflection centers with the echoes.
    • 一种通过借助于声波脉冲进行水下测距的方法和装置,通过用安装在海洋船舶中的发射器的声能脉冲辐射给定的发射区域,以选择性的方式接收从发射区域中的物体反射的声能回波 相对于以风扇形状布置的多个接收扇区中的方向,并且基于相关联的声波脉冲行进时间将接收到的回波与各个接收扇区内的各个反射中心相关联。 接收在不同于承载变送器的船只的第二船只船上进行,并且在距离运送发射机的船只在向后偏移位置处行进,距离接收扇区覆盖给定传送区域的至少一部分,以及 传输区域的方位角宽度非常小。 关联操作包括至少在每个声波脉冲的传输时间确定两个容器之间的相对距离和相对于第二容器的航向的发射区域的方向,以便将反射中心与 回声。