Airborne and ground-based meteorological radar data fusion display method

Abstract

The invention provides an airborne and ground-based meteorological radar data fusion display method. The method comprises the following steps: S1, obtaining ground-based meteorological radar data; s2, reflectivity information and position information are extracted from the ground-based meteorological radar data, and position relation mapping is completed; s3, converting the reflectivity information into polar coordinates with the position of the aerial carrier as an original point and the course of the aerial carrier as a central axis; s4, extracting all meteorological targets; s5, fusing the meteorological target with a meteorological target detected by an airborne meteorological radar; and S6, displaying the image. According to the display method, the detection capability and range of the airborne meteorological radar are supplemented by using the ground-based meteorological radar data, inherent weaknesses existing in radar detection are overcome, the problems that a meteorological target cannot be detected or dangerousness display is insufficient and the like are solved, the perception capability of a pilot to the weather in front of an aerial carrier is effectively improved, and the detection efficiency is improved. Pilots are helped to avoid dangerous weather, and flight safety is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of airborne weather radar, in particular to an airborne and ground-based weather radar data fusion display method. Background technique [0002] Conventional civil aviation airborne weather radar is an X-band forward-looking Doppler radar, which is used to detect dangerous weather in front of the aircraft and remind pilots to avoid it. With the development of civil aviation technology, in addition to requiring airborne weather radars to be able to detect weather targets more precisely, they also need a more powerful ability to perceive the environment. The current airborne weather radars still have some inherent weaknesses. For example: X-band has insufficient penetrating ability to strong weather and insufficient ability to display meteorological targets behind strong weather, which may easily lead to flight accidents; the display intensity of weather radar screen is determined by the position of the meteor...

AI Technical Summary

Problems solved by technology

For example: X-band has insufficient penetrating ability to strong weather and insufficient ability to display meteorological targets behind strong weather, which may easily lead to flight accidents; the display intensity of weather radar screen is determined by the position of the meteorological target irradiated by the beam. The echo intensity under the beam line-of-sight angle is different, and the weak display intensity does not mean that the target is not dangerous; the weather is affected by the curvature of the earth and terrain occlusion, and some meteorological targets may not be detected; the weather radar is limited by the detection capability, and it is not suitable for long-distance weather. Insufficient detection capability; weather radar is affected by the width of the antenna beam, and the long-distance weather detection shows insufficient strength

[0003] Therefore, it is necessary to provide a method that can solve the inaccurate problem of the airborne weather radar detection method used in the prior art

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