Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Seawater sound velocity profile continuation method and device

A technology of sound velocity profile and sea water, applied in measuring devices, measuring propagation velocity, measuring ultrasonic/sonic/infrasonic waves, etc., to achieve high-precision results

Pending Publication Date: 2022-01-11
HARBIN ENG UNIV
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] Aiming at the problem of how to use relatively few historical seawater sound velocity profile measurement data to extend the seawater sound velocity profile, the present invention provides a seawater sound velocity profile continuation method based on low-rank matrix completion

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
  • Seawater sound velocity profile continuation method and device
  • Seawater sound velocity profile continuation method and device
  • Seawater sound velocity profile continuation method and device

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0053] Specific embodiment: Obtain the seawater sound velocity profile data actually measured by the CTD measuring device (Sea-Bird SBE 9) of Sea-Bird Company in the experiment numbered EX1708 of the Okeanos Explorer scientific research ship; specific , the obtained seawater sound velocity profile data are as follows figure 2 shown.

[0054] In order to verify the validity of the seawater sound velocity profile continuation method provided in this embodiment, a piece of seawater sound velocity profile data is selected as a control group, and the remaining seawater sound velocity profile data are used as historical data.

[0055] The shallow data at 750 meters of the control group is used as the section to be extended, and the data at 750 meters to 1800 meters of the control group are used to verify the extension effect

[0056] The seawater sound velocity profile continuation method provided in this embodiment is applied to the historical data and the data of the control gro...

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 seawater sound velocity profile continuation method and device, solves the problem of how to carry out seawater sound velocity profile continuation by using relatively less historical seawater sound velocity profile measurement data, and belongs to the field of marine environment parameter estimation. The method comprises the following steps of: acquiring a historical seawater sound velocity profile data set, to-be-continued seawater sound velocity profile data and a seawater depth A required to be continued, wherein the historical seawater sound velocity profile data set comprises complete historical seawater sound velocity profile data measured for multiple times; screening out the historical seawater sound velocity profile data with seawater depth greater than A from the historical seawater sound velocity profile data set; selecting an interpolation interval, and performing linear interpolation on the historical seawater sound velocity profile data and to-be-continued seawater sound velocity profile data according to the selected interpolation interval; and constructing a to-be-completed matrix by using the interpolated to-be-continued seawater sound velocity profile data and the interpolated historical seawater sound velocity profile data, and completing the to-be-completed matrix by using a low-rank matrix completion algorithm to complete seawater sound velocity profile continuation.

Description

technical field [0001] The invention relates to a seawater sound velocity profile continuation method based on low-rank matrix completion, belonging to the field of marine environment parameter estimation. Background technique [0002] The continuation of the seawater sound velocity profile is to estimate the deeper part of the seawater sound velocity vertical distribution in various ways according to the actually measured information of the shallower part of the seawater sound velocity vertical distribution. One of the main factors of the characteristics of the underwater sound field, the normal operation of various sonar equipment represented by the multi-beam sounding system needs to know the more accurate vertical distribution of seawater sound velocity. At present, the main methods to obtain the vertical distribution of the sound velocity in seawater are: to carry out the survey by the measurement equipment such as the sound velocity profiler or CTD (Conductivity Temper...

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 Applications(China)
IPC IPC(8): G01H5/00G06F17/16
CPCG01H5/00G06F17/16
Inventor 蔡魁杰郑顺华孙大军郑翠娥于淼王煜卿
Owner HARBIN ENG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com