A method for simulating underwater acoustic signals, an underwater acoustic signal simulator, and imaging sonar

A technology of underwater acoustic signal and simulation method, which is applied in the field of acoustic signal simulation, can solve problems such as difficult underwater debugging, and achieve the effect of saving costs and simplifying debugging work

Active Publication Date: 2019-09-03
THE THIRD RES INST OF CHINA ELECTRONICS TECH GRP CORP
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Before it is put into use, it is necessary to debug the equipment of the underwater imaging sonar. In the prior art, the imaging sonar needs to be debugged in the water. a certain impact

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
  • A method for simulating underwater acoustic signals, an underwater acoustic signal simulator, and imaging sonar
  • A method for simulating underwater acoustic signals, an underwater acoustic signal simulator, and imaging sonar
  • A method for simulating underwater acoustic signals, an underwater acoustic signal simulator, and imaging sonar

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0061] Optionally, based on the first embodiment of the underwater acoustic signal simulation method, step S12 in this embodiment specifically includes:

[0062] S121. Establishing a spatial scattering model for underwater beam irradiation;

[0063] In this embodiment, in order to simulate the underwater environment on land, it is necessary to establish a spatial scattering model of underwater beam irradiation.

[0064] S122. Calculate the delay time of each channel signal by using the two-way Doppler effect formula of the imaging sonar through the established underwater beam irradiation space scattering model.

[0065] Wherein, the two-way Doppler effect formula in this embodiment is as follows:

[0066]

[0067]

[0068] In the formula, t 0 represents the starting time, t R , t T Respectively represent receiving and transmitting time, c is the sound velocity of sound wave in water. here r mp and r np Respectively represent the distance of the scattering voxel p ...

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

An embodiment of the invention discloses a submarine sound signal simulation method which is used for debugging an imaging sonar on the land, simplifies the debugging and reduces the cost. The embodiment of the present invention includes calculating a delay time of each channel signal based on an imaging distance between a target object and the imaging sonar; calculating a delay phase of each channel signal based on an imaging direction between the target object and the imaging sonar; simulating an submarine sound signal responsive to the imaging sonar when the target object receives a detection signal sent by the sonar based on the delay time and the delay phase; and sending the simulated submarine sound signal to the imaging sonar to enable the imaging sonar to use the submarine sound signal to simulate the target object. Embodiments of the invention also provide a submarine sound signal simulator and an imaging sonar used for debugging the imaging sonar on the land, simplifying the debugging and reducing the cost.

Description

technical field [0001] The invention relates to the technical field of acoustic signal simulation, in particular to an underwater acoustic signal simulation method, an underwater acoustic signal simulator and imaging sonar. Background technique [0002] Underwater imaging sonar can generate high-definition sonar images that are almost equivalent to image quality images in water with zero visibility. Underwater imaging sonar is widely used, such as underwater pipeline detection, underwater search, underwater engineering facility inspection, etc. [0003] Before it is put into use, it is necessary to debug the underwater imaging sonar. In the prior art, it is necessary to put the imaging sonar in the water for debugging. certain impact. Contents of the invention [0004] An embodiment of the present invention provides a method for simulating an underwater acoustic signal, which can simulate an underwater acoustic signal when performing imaging sonar debugging, and can compl...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/52G01S15/89
Inventor 刘德铸
Owner THE THIRD RES INST OF CHINA ELECTRONICS TECH GRP CORP
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