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Dominant gravity wave identification method based on LS spectrum and wavelet spectrum

A gravitational wave and wavelet spectrum technology, used in character and pattern recognition, special data processing applications, complex mathematical operations, etc., to achieve the effect of easy operation and accurate results

Inactive Publication Date: 2019-08-27
国耀量子雷达科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for identifying dominant gravitational waves based on LS spectrum and wavelet spectrum, aiming to solve the problem of quickly identifying the dominant atmospheric gravitational waves within the specified spectrum range in the area of ​​interest in massive observation data

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  • Dominant gravity wave identification method based on LS spectrum and wavelet spectrum
  • Dominant gravity wave identification method based on LS spectrum and wavelet spectrum
  • Dominant gravity wave identification method based on LS spectrum and wavelet spectrum

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Embodiment

[0029] The invention discloses a dominant gravity wave identification method based on LS spectrum and wavelet spectrum. The LS spectrum in the present invention refers to the Lomb-Scargle spectrum. The basic principle is: for given data in the time domain or space domain, use LS spectrum and wavelet spectrum to perform spectrum analysis respectively, and within a given spectrum range, select the alternatives based on the significance of the spectrum analysis. For gravitational waves, the two results are compared with each other, and the best result is selected as the dominant gravitational wave within the given data. Compared with the manual identification method or a single spectrum analysis threshold, it can run automatically, calculate quickly, effectively eliminate interference, and improve the identification efficiency of dominant gravity waves.

[0030] combine figure 1 , the present invention is based on the dominant gravitational wave identification method of LS spec...

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Abstract

The invention discloses a dominant gravity wave identification method based on an LS spectrum and a wavelet spectrum. For the data of a given time domain or a given space domain, the LS spectrum and the wavelet spectrum are respectively used for spectral analysis, the alternative gravity waves are respectively selected through the significance of spectral analysis in a given spectral range, the two results are compared with each other, and an optimal result is selected as a dominant gravity wave in the given data. Compared with a manual identification method or a single spectrum analysis threshold value, the method can automatically operate, quickly calculate, effectively eliminate interference, quickly identify the dominant gravity waves within a certain time-space range in the data, improves the identification efficiency of the gravity waves, and has important value for the parametric description of the atmospheric gravity waves and the development of the global atmospheric climate modes.

Description

technical field [0001] The invention relates to the field of atmospheric dynamics, in particular to a method for identifying dominant gravity waves based on LS spectrum and wavelet spectrum. Background technique [0002] Atmospheric gravity waves are one of the most common phenomena in the atmosphere. When the atmosphere is affected by terrain, convection, wind shear, jet current, frontal system, etc., disturbances will occur and deviate from the equilibrium state. The combined action of gravity and buoyancy makes the atmosphere oscillate in the form of waves, so it is often called gravity waves. During the uploading process, the amplitude of the atmospheric gravity wave will increase as the density of the atmosphere decreases, and the gravity wave will become unstable due to excessive amplitude or be broken due to encountering a critical layer. On the one hand, the fragmentation of gravity waves may lead to turbulence in the clear air. This phenomenon, invisible to the nak...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06F17/14
CPCG06F17/148G06F2218/06G06F2218/12
Inventor 贾铭蛟夏海云岳斌王冲袁金龙
Owner 国耀量子雷达科技有限公司
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