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Wind shear identification method

An identification method and windshear technology, which is applied in the field of windshear identification to achieve the effects of improving accuracy, increasing identification speed, and ensuring flight safety

Active Publication Date: 2017-05-31
LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA
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  • Abstract
  • Description
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Problems solved by technology

[0006] The purpose of the present invention is to provide a method for identifying windshear to solve at least one technical problem existing in existing methods for identifying windshear

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Embodiment Construction

[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention relates to the field of airborne weather radars, in particular to a wind shear identification method. The method includes the steps of firstly, preprocessing radial speed data detected at a preset position to remove noise points and isolated points in the radial speed data; secondly, calculating spectral width according to the preprocessed radial speed data, and judging whether the spectral width is larger than a preset value or not; if so, determining that wind shear possibly exists at the preset position, and performing the third step; if not, then determining that wind shear does not exist; thirdly, performing wind shear identification on the preprocessed radial speed data through a region growing method. The wind shear identification method has the advantages that a dangerous resultant wind shear region can be positioned fast, accurately and clearly, dangerous weather can be pre-warned in real time on an airborne weather radar, and the flight safety of an airplane can be guaranteed.

Description

technical field [0001] The invention relates to the field of airborne weather radar, in particular to a windshear identification method. Background technique [0002] Wind shear is one of the main factors that threaten the flight safety of aircraft, and quite a few air accidents are caused by low-altitude wind shear. Wind shear refers to the sudden change of wind speed and direction in the horizontal or vertical direction. The weather phenomena that cause wind shear mainly include: clear air turbulence (thermal bubbles, stratocumulus, cumulus), frontal weather (cold front, warm front), Severe convective weather (multiple cells, supercells, squall lines, downbursts), near-surface gust fronts and radiation inversion wind shear, etc. Therefore, wind shear has the characteristics of small scale, strong suddenness and high intensity. [0003] In small and medium-scale weather systems, the convergence and divergence process of wind often exists in the shear area, and the strong ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/95G01S7/41
CPCG01S7/41G01S13/953Y02A90/10
Inventor 刘心刚钱君于超鹏
Owner LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA
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