MIMO (multiple input multiple output) based high-resolution underwater target detection device and method

A technology for underwater targets and detection devices, applied in measurement devices, sound wave reradiation, radio wave measurement systems, etc., can solve many problems such as detection time and complex sonar systems

Inactive Publication Date: 2012-07-25
ZHEJIANG UNIV
View PDF4 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in order to improve the resolution of the target, it can be achieved by increasing the aperture of the transmitting and receiving array, but the expansion of the aperture of the array requires more transmitting and receiving equipment, a more complex sonar system des

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
  • MIMO (multiple input multiple output) based high-resolution underwater target detection device and method
  • MIMO (multiple input multiple output) based high-resolution underwater target detection device and method
  • MIMO (multiple input multiple output) based high-resolution underwater target detection device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] The present invention will be further described below in conjunction with the accompanying drawings and specific examples.

[0056] The MIMO-based high-resolution underwater target detection device of the present invention includes:

[0057] - signal transmitters for transmitting quadrature signals;

[0058] - a power amplifier for amplifying the power of the quadrature signal;

[0059] ——The transmitting transducer array is used to convert the amplified orthogonal signal from an electrical signal to an acoustic signal, and transmit the acoustic signal to the water area to be detected;

[0060] - the receiving hydrophone array is used to receive the echo of the acoustic signal emitted by the transmitting transducer array, and convert the echo of the acoustic signal into an electrical signal;

[0061] - a signal receiver, used to receive and store the electrical signal converted by the receiving hydrophone array;

[0062] ——The signal processor is used to receive the ...

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 an MIMO (multiple input multiple output) based high-resolution underwater target detection device and method. According to the invention, a potential target is actively detected through a plurality of mutually-orthogonal detection waveforms transmitted by a transmitting transducer array in a hydroacoustic environment, and a hydrophone-array received target echo is received. Through MIMO processing, a method for carrying out detection and estimation on an MIMO frame is established, and the extension of waveform diversity gains and virtual array apertures is obtained. By using the MIMO based underwater target detection method disclosed by the invention, in the process of carrying out hydroacoustic target detection, compared with conventional phase control, a higher detection resolution and higher parameter identification performance can be obtained.

Description

technical field [0001] The invention relates to a MIMO-based high-resolution underwater target detection method, is a new sonar signal processing method, and belongs to the field of underwater acoustic target detection and positioning. Background technique [0002] The existing underwater target detection methods based on the horizontal transceiver array structure are all phased array structures. The transmitting array sends the same detection signal to a certain direction, and detects all interested directions by scanning, and the receiving array receives the signal echo. , realize target detection and localization by beamforming and matched filtering of the received signal. The target resolution of the phased array detection method is proportional to the array aperture of the receiving array. Therefore, in order to improve the resolution of the target, it can be achieved by increasing the aperture of the transmitting and receiving array, but the expansion of the aperture ...

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): G01S15/04G01S7/539
Inventor 潘翔郭小虎
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