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Anti-frogman sonar transducer array

A transducer array and transducer technology, which is applied in the re-radiation of sound waves, instruments, and utilization of re-radiation, etc., can solve the problems of small aperture of the transducer array and unsatisfactory anti-frogman detection sonar detection effect, etc. , to achieve the effects of improving receiving sensitivity, suppressing volume reverberation, and reducing the number of array elements

Active Publication Date: 2017-04-19
NAVAL UNIV OF ENG PLA
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  • Description
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Problems solved by technology

At present, the transducer base arrays commonly used in anti-frogman sonar at home and abroad include a cylindrical array for transmitting and receiving, and a triangular array for transmitting and receiving separately. The detection effect is still not ideal

Method used

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  • Anti-frogman sonar transducer array

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Embodiment Construction

[0019] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention and do not constitute any limitation on the protection scope of the present invention.

[0020] Such as figure 1 As shown, 1 is the column structure array of the transmitting transducer base array in this embodiment, 2, 3, 4, and 5 are the four arms of the cross array of the receiving transducer base array, 6 is the electronic chamber housing, and 7 is the base.

[0021] A transducer matrix for anti-frogman sonar, comprising an electronic chamber housing, a transmitting transducer matrix, a receiving transducer matrix and a base. Such as figure 1 As shown, the transmitting transducer array is installed on the lower part of the electronic box housing 6 , and the receiving transducer array is installed on the base 7 . The transmitting tra...

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Abstract

The present invention belongs to the sonar small target detection technology field, in particular discloses an anti-frogman sonar transducer array. The anti-frogman sonar transducer array comprises an electronic storehouse shell, an emission transducer array, a reception transducer array and a pedestal. The pedestal is arranged on the electronic storehouse shell, the emission transducer array is a plurality of column structure arrays which are distributed in the circumference direction of the lower part of the electronic storehouse shell, the reception transducer array is a horizontal direction cross array arranged on the pedestal, and the column structure arrays of the emission transducer array are vertical with the reception transducer array. According to the present invention, by a reception and emission separated mode, the emission transducer array covers a circumference 360-degree direction via the plurality of column structure arrays which are distributed in the circumference direction of the electronic storehouse shell, and a vertical directivity open angle of the emission transducer array is controlled by the number of the array elements of each column of the column structure arrays or the phases of the signals added at each array element, so that the narrow beam scanning of a vertical plane can be realized, and the reverberation interference coming from the sea surface and the sea floor is suppressed effectively.

Description

technical field [0001] The invention belongs to the technical field of sonar small target detection, and relates to a transducer array for anti-frogman sonar. Background technique [0002] Underwater frogman detection has become an important research field of safety assurance, and is the key to the development of small target detection sonar at home and abroad. It is of great significance to the security and defense of key water areas such as coastal defense, ports, large ships, and offshore oil drilling platforms. . Deploying underwater acoustic detection systems in important waters, using underwater acoustics as an information carrier, to detect, locate and identify intrusion targets is currently the most important means of combating threats from underwater frogmen, vehicles, and underwater robots. At present, various countries have invested a lot of power in the research of sonar technology for the detection of small targets such as frogmen and underwater robots. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/521G01S7/523G01S15/02
CPCG01S7/521G01S7/523G01S15/02
Inventor 苑秉成詹昊可邢瑞林李跃鹏
Owner NAVAL UNIV OF ENG PLA
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