| 摘要 |
<p>The invention concerns side scan sonars with synthetic antenna. It consist in fixing at the two ends of the physical antenna (202) of such a sonar two transmitting transducers (211, 221) operating in interferometer mode. The forward speed of the sonar is selected so that the zero positions of the physical receiver antenna coincide with one of the two side lobes of the radiation pattern of the synthetic antenna and that the zero positions of the physical pattern of the interferometer transmitter antenna coincide with the other side lobes. It increases the range, and therefore the hourly coverage, of such a sonar for a given speed.</p> |
