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    • 3. 发明公开
    • Sonar system
    • 声纳系统
    • EP0619501A3
    • 1995-12-06
    • EP94301363.1
    • 1994-02-25
    • RAYTHEON COMPANY
    • Bick, E. TheodoreCarter, Scott D.Edgerton, Bradford W.Suglia, Cheryl A.
    • G01S15/89G01S15/93
    • G01S15/93Y10S367/909
    • A system for providing advance warning of underwater navigation hazards that threaten safe ship passage includes a sonar transmitter/receiver (16) adapted for mounting on the ship in a forward looking direction. A processor (24), in response to sonar returns produced by the sonar transmitter/receiver (16), produces a sonar produced slope profile (49) of a region of the sea bottom in front of the path of the vessel. A memory (44) stores a slope profile (52) of the region of the sea bottom in front of the vessel, such profile being developed from chartered depth data. The stored charted depth data developed slope profile (52) is compared with the sonar return produced slope profile (49) to determine whether the sonar produced slope profile and the chartered depth data slope profile are consistent with each other. If the sonar return produced slope profile in a region of the sea bottom is greater that a predetermined threshold level (selected to identify a potential forward undersea hazard) and the chartered depth data generated profile of such region does not indicate this potential hazard, an anomaly is identified and a signal indicating such anomaly is produced.
    • 4. 发明公开
    • Sonar system
    • Sonarsystem。
    • EP0619501A2
    • 1994-10-12
    • EP94301363.1
    • 1994-02-25
    • RAYTHEON COMPANY
    • Bick, E. TheodoreCarter, Scott D.Edgerton, Bradford W.Suglia, Cheryl A.
    • G01S15/89G01S15/93
    • G01S15/93Y10S367/909
    • A system for providing advance warning of underwater navigation hazards that threaten safe ship passage includes a sonar transmitter/receiver (16) adapted for mounting on the ship in a forward looking direction. A processor (24), in response to sonar returns produced by the sonar transmitter/receiver (16), produces a sonar produced slope profile (49) of a region of the sea bottom in front of the path of the vessel. A memory (44) stores a slope profile (52) of the region of the sea bottom in front of the vessel, such profile being developed from chartered depth data. The stored charted depth data developed slope profile (52) is compared with the sonar return produced slope profile (49) to determine whether the sonar produced slope profile and the chartered depth data slope profile are consistent with each other. If the sonar return produced slope profile in a region of the sea bottom is greater that a predetermined threshold level (selected to identify a potential forward undersea hazard) and the chartered depth data generated profile of such region does not indicate this potential hazard, an anomaly is identified and a signal indicating such anomaly is produced.
    • 提供威胁安全船舶通行的水下航行危害提前预警系统,使用一个适用于沿前进方向安装在海上船上的声纳收发器。 响应于由声纳收发器产生的声纳返回而产生在船的路径前面的海底区域的斜率分布。 从图表数据开发的斜率分布存储在存储器中。 将存储的图表数据斜率分布与产生的斜率分布进行比较,以确定船舶前面的斜率分布是否符合图表数据开发的斜率分布。 优选地,系统使用海底背景混响的估计。