Benthal three-dimensional sonar image imaging system based on multi-FPGA parallel processing

An image imaging and parallel processing technology, which is applied in the field of FPGA technology and distributed parallel computing, can solve the problems of signal integrity deterioration, system electromagnetic compatibility is difficult to guarantee, device speed and performance cannot be infinitely improved, etc.

Inactive Publication Date: 2010-01-13
ZHEJIANG UNIV
View PDF0 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although a single FPGA chip has achieved high computing performance, due to the limitation of semiconductor technology, the speed and performance of the device cannot be infinitely improved.
Moreover, due to the application of high-speed

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Benthal three-dimensional sonar image imaging system based on multi-FPGA parallel processing
  • Benthal three-dimensional sonar image imaging system based on multi-FPGA parallel processing
  • Benthal three-dimensional sonar image imaging system based on multi-FPGA parallel processing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Such as figure 1 As shown, the submarine three-dimensional sonar image imaging system based on multi-FPGA parallel processing uses an embedded processor as the data transmission processor 430, and uses a serial data transmission protocol to interconnect the sub-signal processor 410 and the main signal processor 420 , forming a master-slave distributed multi-FPGA parallel processing architecture. The data transmission processor 430 uploads the beam result data of the main signal processor to the PC at the trunk end, and the PC performs post-processing on the beam result data and displays it.

[0032] The sub-signal processor 410 performs data interaction with the main signal processor 420 through the serial data bus; the data transmission processor 430 performs data interaction with the main signal processor 420 through the serial data bus.

[0033] Such as figure 2 As shown, the software function modules in the data transmission processor include command parameter se...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a benthal three-dimensional sonar image imaging system based on multi-FPGA parallel processing. The system adopts a principal and subordinate distributed type structure, uses FPGA and an embedded type processor to complete the processing and the transmission of echo signals and comprises 48 subordinate signal processors, one principal signal processor and one data transmission processor. When the data transmission processor of the system receives a data collection starting command transmitted by an upper computer, multi-path analog-to-digital converters on the subordinate signal processors begin to work synchronously, carry out discrete Fourier transformation on data collected by the multi-path analog-to-digital converters and transmit a calculation result to the principal signal processor, the principal signal processor calculates the calculation result to obtain a wave beam energy matrix, and the wave beam energy matrix is transmitted to the data transmission processor and is finally transmitted to a PC machine at a host terminal. In the invention, the system generates 16384 real-time wave beam signals by synchronously collecting 2304 paths of echo signals and obtains three-dimensional sonar images by real-time signal processing.

Description

technical field [0001] The invention relates to FPGA technology and distributed parallel computing technology, in particular to a multi-FPGA parallel processing submarine three-dimensional sonar image imaging system. Background technique [0002] "Phased array three-dimensional acoustic camera sonar" is a new type of real-time three-dimensional image sonar, which uses one sound pulse to penetrate the entire observation volume, simultaneously generates 16384 real-time beam signals, and obtains three-dimensional sonar images through real-time signal processing. Up to 20 update rates per second. [0003] The imaging principle of the phased array three-dimensional acoustic camera sonar system is to use a digital beamformer to delay the echo signal and then perform a multiply-accumulate operation. [0004] Previous sonar imaging systems are usually implemented using a digital signal processor (Digital Signal Processor, DSP). DSP has the advantages of relatively mature technolog...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01S15/89
Inventor 陈耀武陈朋田翔
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap