Verification method for rainfall detection result of airborne weather radar

Abstract

The invention discloses a verification method for a rainfall detection result of an airborne weather radar, and belongs to the technical field of airborne weather radar verification. The verification method comprises the following steps: selecting a detection result M to be verified of the airborne weather radar, a longitude, a latitude and a course of a corresponding airplane and a measuring range and a scanning range of the weather radar; 2, selecting a ground weather radar station of which the detection range can cover the detection range of the airborne weather radar, and obtaining a ground rainfall detection result N; 3, coordinatizing the ground rainfall detection result N, and calculating the resolution of latitudes and the longitudes of pixel points; 4, calculating a constraint function of a coverage region of the airborne weather radar; 5, obtaining a constraint region according to the constraint function, and performing coordinate conversion on the pixel points in the constraint region, thus generating a reference graph P; 6, comparing the reference graph P with the detection result M of the airborne weather radar for verification. According to the verification method disclosed by the invention, by quantitative selection of proper rainfall targets, the number of trial flights is effectively reduced, and the trial flight verification cost is lowered.

Description

technical field [0001] The invention belongs to the technical field of verification of airborne weather radar systems, and in particular relates to a verification method for rain detection results of airborne weather radars. Background technique [0002] The airborne weather radar system (WXR) can detect the precipitation and turbulence in front of the aircraft, and can also detect the terrain conditions in front of the aircraft. to display on the display. Pilots choose safe routes based on radar image information to ensure flight safety and comfort. [0003] Due to the variability and randomness of weather, the functional performance verification of airborne weather radar often requires multiple test flights, which is time-consuming and laborious. In the previous flight test verification of airborne weather radar, the detection distance was often mainly verified, and no quantitative assessment was made on the detection results of rainfall intensity. Instead, it was judged...

AI Technical Summary

Problems solved by technology

[0003] Due to the variability and randomness of weather, the functional performance verification of airborne weather radar often requires multiple test flights, which is time-consuming and labor-intensive

In the previous flight test verification of airborne weather radar, the detection distance was often mainly verified, and no quantitative assessment was made on the detection results of rainfall intensity. Instead, it was judged based on human experience whether the detection results of the airborne weather radar system were accurate and effective. blindness and high error rate

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