Three-dimensional sonar imaging system based on graph processor and three-dimensional image method thereof

A graphics processor and imaging system technology, applied in radio wave measurement systems, instruments, sound wave re-radiation and other directions, can solve problems such as high cost, high development difficulty, and complex hardware structure, with high difficulty and low development difficulty. , the effect of strong expansion

Active Publication Date: 2014-02-19
中国船舶重工集团公司第七二六研究所
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Problems solved by technology

[0004] The existing 3D sonar imaging device is realized by multi-chip FPGA (Field-Programmable Gate Array, that is, Field Programmable Gate Array), the hardware structure is complicated, and the development is difficult and expensive

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  • Three-dimensional sonar imaging system based on graph processor and three-dimensional image method thereof

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Embodiment Construction

[0018] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.

[0019] Such as figure 1 As shown, the three-dimensional sonar imaging system based on a graphics processor of the present invention includes a signal down-sampling module, a cache module, a parallel beamforming module based on a graphics processor, a broadband pulse compression module based on a graphics processor, and a three-dimensional display module, the signal down-sampling module is used to move the underwater acoustic signal received by the underwater acoustic sensor (such as sensor array, etc.) channel sampling data; the cache module is used to preserve the multi-channel sampling data received from the signal down-sampling module; the parallel beamforming module based on the graphics processor reads the multi-channel echo data from the cache module, and uses For calculating freq...

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Abstract

The invention discloses a three-dimensional sonar imaging system based on a graph processor and a three-dimensional image method thereof. The three-dimensional sonar imaging system comprises a signal down-sampling module and the like which are sequentially connected. The signal down-sampling module is used for transferring an underwater acoustic signal received by an underwater acoustic sensor from high frequency to low frequency and converting the underwater acoustic signal into a digital signal convenient to process by a computer. A high-speed buffer module is used for storing multi-channel sampling data received from the signal down-sampling module. A parallel beam forming module based on an image processor reads multi-channel echo data from the high-speed buffer module. A wideband pulse compression module based on the image processor processes frequency domain signals output by the parallel beam forming module in different spatial angle directions. A three-dimensional display module receives output information of a beam forming module based on the image processor and output information of the wideband pulse compression module based on the image processor. The system and the method have the advantages of being low in cost, high in performance, strong in expansibility and the like.

Description

technical field [0001] The invention belongs to the field of underwater acoustic detection, and in particular relates to a three-dimensional sonar imaging system based on a graphics processor (Graphics Processing Unit, GPU) and a three-dimensional imaging method thereof. Background technique [0002] Sonar is a device that uses underwater sound waves to detect and locate targets. At present, the main functions of general sonar systems are the detection of underwater targets and the two-dimensional positioning of targets in azimuth and distance. With the development of marine development and military application requirements, such as for offshore engineering implementation, submarine pipeline detection, frogman detection, underwater vehicle navigation, etc., the requirement for three-dimensional positioning of underwater targets was put forward, and three-dimensional sonar was born. . [0003] Three-dimensional sonar generally uses a two-dimensional array to receive sound w...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S15/89
CPCG01S7/6245G01S15/89
Inventor 印明明刘平香刘珏
Owner 中国船舶重工集团公司第七二六研究所
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