Reactive wind shear false alarm suppression method fused with meteorological radar information

Abstract

The invention provides a reactive wind shear false alarm suppression method fused with meteorological radar information. The reactive wind shear false alarm suppression method comprises the following steps of 1, performing wind field inversion on wind field information; 2, wind field information is introduced for turbulence judgment, integral duration is corrected, and a predictive wind shear F factor is extracted; 3, calculating a reaction formula wind shear F factor according to a reaction formula wind shear mode, and comparing the F factor with an alarm threshold to obtain a wind shear alarm result; 4, calculating and comparing the reaction type wind shear F factor and the F factor of the aircraft position point in wind field inversion, if the integral average difference value of the reaction type wind shear F factor and the prediction type wind shear F factor is greater than the tolerance, detecting the maneuvering action type, and finishing the correction of the reaction type wind shear F factor; if the integral average difference value of the reactive formula wind shear F factor and the F factor of the aircraft position point in the wind field inversion is smaller than the tolerance, generating a wind shear alarm; and step 5, obtaining a corrected F factor.

Description

technical field [0001] The invention relates to the technical field of radar, in particular to a reactive windshear false alarm suppression method for fusing meteorological radar information. Background technique [0002] According to the alarm principle, the windshear detection system is divided into two categories: predictive type (forward-looking type) and reactive type (current state type). Based on the predictive windshear function of airborne meteorological radar, windshear characteristic parameters such as echo power, Doppler wind speed, and spectral width are extracted from radar echoes to judge the existence and danger of windshear. Capable of detecting windshear information on distant routes. [0003] Reactive windshear is when the aircraft is in the wind shear wind field, the airspeed, angle of attack, sideslip angle provided by the air data computer (ADC), and the aircraft speed and attitude information provided by the inertial reference system (IRS) , to calcu...

AI Technical Summary

Problems solved by technology

[0004] If the standard F-factor method is used for reactive windshear, there will be certain limitations. Specifically, it is easily affected by turbulence and will generate windshear false alarms. In addition, the maneuvering actions of the aircraft during flight will also generate windshear false alarms.

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