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Detection performance trial flight verification method for onboard meteorological radar

A technology of airborne weather radar and verification method, which is applied in the field of airborne weather radar detection performance test flight verification, and can solve problems such as lack of verification benchmarks and non-manual controllability

Inactive Publication Date: 2015-06-24
CHINESE FLIGHT TEST ESTAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Meteorological targets change over time and are not controllable by humans. Therefore, previous airborne weather radar test flights lacked verification benchmarks (including: distribution of meteorological target positions, radar echo intensity and speed at each point in the target, etc.), and only Object detection for qualitative inspection

Method used

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  • Detection performance trial flight verification method for onboard meteorological radar
  • Detection performance trial flight verification method for onboard meteorological radar
  • Detection performance trial flight verification method for onboard meteorological radar

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Embodiment Construction

[0012] A kind of airborne meteorological radar detection performance test flight verification method of the present invention, such as figure 1 shown, including:

[0013] S101. During the test flight, record the radar picture of the airborne weather radar aimed at the weather target in the air.

[0014] The recorded radar picture of the weather target includes the location of the weather target and the radar echo intensity of the weather target. The radar echo intensity is represented by the basic reflectivity in meteorology, which is proportional to the 6th power of the diameter of the precipitation particles in the unit volume of the meteorological target, and its value reflects the scale and density distribution of the precipitation particles inside the meteorological target, and the unit is dBz.

[0015] S102. Extract the position of the meteorological target detected by the ground weather radar and the radar echo intensity of the meteorological target, and convert the p...

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Abstract

The invention relates to the field of radar, and provides a detection performance trial flight verification method for onboard meteorological radar. The detection performance trial flight verification method for the onboard meteorological radar is used for verifying or calibrating the onboard meteorological radar. According to the technical scheme, the detection performance trial flight verification method for the onboard meteorological radar includes the steps that a radar image of the on-board meteorological radar for an aerial weather target is recorded in the trial flight; the position of the weather target detected by ground meteorological radar and radar echo intensity of the weather target are extracted and converted to an onboard meteorological radar coordinate system to generate a reference map; the reference map is compared with the image, recorded in the trial flight, of the onboard meteorological radar.

Description

technical field [0001] The invention relates to the radar field, in particular to an airborne weather radar detection performance test flight verification method. Background technique [0002] Airborne weather radar is an airborne radar used to detect cloud and rain conditions and other meteorological elements in the air. It can measure and display areas such as thunderstorms, storms or turbulent areas in front of the aircraft. [0003] Meteorological targets change over time and are not controllable by humans. Therefore, previous airborne weather radar test flights lacked verification benchmarks (including: distribution of meteorological target positions, radar echo intensity and speed at each point in the target, etc.), and only Object detection is qualitatively checked. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a flight test verification method for the detection performance of the airborne weather radar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40
CPCG01S7/40G01S7/4004G01S13/953
Inventor 涂如欣刘选民梁相文于天超崔冰凌刘刚利杨涛
Owner CHINESE FLIGHT TEST ESTAB