发明名称 |
Sonar receivers |
摘要 |
A sonar receiver comprises an inwardly curved reflector arranged to direct received sonar signals onto a transducer system. The transducer system comprises an array of transducers distributed over an inwardly curved path facing the reflector. Each transducer is responsive to sonar signals received from a particular direction to provide an output signal indicative of a reflecting object, the amplitude of which signal is related to distance of the reflecting object.
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申请公布号 |
US4433396(A) |
申请公布日期 |
1984.02.21 |
申请号 |
US19810300128 |
申请日期 |
1981.09.08 |
申请人 |
PLESSEY OVERSEAS LIMITED |
发明人 |
JOHNSON, PHILLIP L. M.;WALDEN, JOHN R. |
分类号 |
G01S15/42;G10K11/28;(IPC1-7):G01S7/54 |
主分类号 |
G01S15/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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