| 摘要 |
PURPOSE:To suppress the production of a virtual image generated by the reflection at the sea bottom as for as possible, by making a number of installed oscillator elements sloped to the direction of an arrangement respectively. CONSTITUTION:A number of oscillator elements 1 are located with a slope of an angle 0 at the external side of the transceiver 2. Further, in case of transmission wave, it is made to all the radial directions with nondirectivity. Further, in case of wave reception, the directivity toward the specified direction can be obtained by using a plurality of oscillator elements 1 adjacent each other and adjusting the phase each other. |
