Method for carrying out EOF analysis by using improved Argo buoy data

An improved, data-based technology, applied in data processing applications, vibration measurement in fluids, instruments, etc., can solve problems such as missing sound velocity profiles

Active Publication Date: 2021-02-09
SHANDONG UNIV OF SCI & TECH
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  • Summary
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Problems solved by technology

This will lead to the absence of the sound velocity profile in the deep-sea area below 2000 meters when performing deep-sea measurements

Method used

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  • Method for carrying out EOF analysis by using improved Argo buoy data
  • Method for carrying out EOF analysis by using improved Argo buoy data
  • Method for carrying out EOF analysis by using improved Argo buoy data

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Embodiment 1

[0034] The preferred embodiment of the present invention provides a method for EOF analysis using improved Argo buoy data, using the basic Argo sounding data processing method: empirical orthogonal function analysis method.

[0035] The empirical orthogonal function analysis method, also known as the EOF analysis method, uses the EOF analysis method to decompose a certain number of sound velocity profile sample sequences into orthogonal space vectors and time vectors, and usually only needs to use the first few modes. Any profile in the sequence can be reconstructed more accurately, and this processing method greatly reduces the parameters required to describe the vertical structure of the sound velocity profile. In recent years, many scholars have proved the effectiveness and feasibility of this method to a certain extent, and proposed that the EOF function is the most effective function to describe the sound velocity profile. Its solution process is as follows:

[0036] Ass...

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Abstract

The invention relates to the technical field of ocean underwater acoustic modeling, in particular to a method for performing EOF analysis by using improved Argo buoy data, which comprises the following steps: decomposing a certain number of acoustic velocity profile sample sequences into orthogonal space vectors and time vectors by using an EOF analysis method; and generally, any section in the sequence can be reconstructed more accurately only by using the first few modes, so that the parameters required for describing the vertical structure of the sound velocity section are greatly reduced by the processing method. In the research in recent years, many scholars prove the effectiveness and feasibility of the method to a certain extent, and propose that the EOF function is the most effective function for describing the sound velocity profile.

Description

technical field [0001] The invention relates to the technical field of marine hydroacoustic modeling, in particular to a method for EOF analysis using improved Argo buoy data. Background technique [0002] On Earth, oceans cover nearly three-quarters of the planet's surface. Today, when human survival resources are increasingly scarce, the rich energy, minerals and biological resources in the ocean have become the sweet pastry in the eyes of human beings all over the world, making the detection and development of marine resources the focus of marine scientific research. As the main carrier and means of underwater remote information transmission, sound waves can form an effective spatial and temporal distribution structure of the sound field in the ocean. The correct interpretation and rational use of the information structure of the acoustic field in the ocean can enable humans to understand and explore the ocean more effectively. [0003] During the propagation of sound w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/26G01H3/00G01H5/00
CPCG06Q10/04G06Q50/26G01H5/00G01H3/00Y02A90/10
Inventor 李倩倩宋熙昭罗宇施剑高鑫
Owner SHANDONG UNIV OF SCI & TECH
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