A Verification Method of Airborne Meteorological Radar Rainfall Detection Result

Abstract

The invention discloses a method for verifying the rain detection result of an airborne weather radar, belonging to the technical field of airborne weather radar verification. Step 1. Select the airborne weather radar detection result M that needs to be verified and the corresponding aircraft longitude, latitude, heading, weather radar range and scanning range; Step 2. The detection range of the selected ground weather radar station can cover the airborne weather radar detection range, and obtain the ground rainfall detection result N; Step 3, coordinate the ground rainfall detection result N, and calculate the resolution of the latitude and longitude of the pixel point; Step 4, calculate the constraint function of the airborne weather radar coverage area; Step 5, according to the constraints The function obtains the restricted area, and carries out coordinate conversion to the pixel points in the restricted area, and generates the reference map P; Step 6, compares and verifies the reference map P with the airborne weather radar rainfall detection result M; the present invention selects suitable rainfall by quantitatively The goal is to effectively reduce the number of flight test sorties and reduce the cost of flight test verification.

Description

Technical field[0001]The invention belongs to the technical field of airborne weather radar system verification, and specifically relates to a method for verifying rain detection results of an airborne weather radar.Background technique[0002]The airborne weather radar system (WXR) can detect precipitation and turbulence in front of the aircraft, and can also detect the terrain conditions in front of and below the aircraft. To show it on the monitor. The pilot selects a safe route based on the radar image information to ensure the safety and comfort of the flight.[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 past flight test verifications of airborne weather radars, the detection distance was often the main focus. The rainfall intensity detection results were not evaluated quantitatively, but based on human experience to...

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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