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Weather radar calibration method and system based on unmanned aerial vehicle

A weather radar and calibration method technology, applied in unmanned aerial vehicles, radio wave measurement systems, motor vehicles, etc., can solve the problems of inaccurate air calibration results, inability to work, and high erection costs, and achieve the elimination of radar cross-sectional area standards. The effect of calibration error, strong adaptability and high accuracy

Active Publication Date: 2020-08-14
CMA METEOROLOGICAL OBSERVATION CENT
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Problems solved by technology

[0009] The embodiment of the present invention provides a method and system for calibrating weather radar based on unmanned aerial vehicles, which solves the problems of high erection cost and inability to work under special terrain conditions in the existing signal source method, and solves the problems of the existing metal ball calibration The method has the problem of inaccurate calibration results in the air

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  • Weather radar calibration method and system based on unmanned aerial vehicle
  • Weather radar calibration method and system based on unmanned aerial vehicle
  • Weather radar calibration method and system based on unmanned aerial vehicle

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] Such as figure 1 As shown, the present invention provides a kind of weather radar calibration method based on unmanned aerial vehicle, and this method comprises:

[0030] S101. Control an unmanned aerial vehicle equipped with an on-board calibration device to fly to a predetermined space position by means of wireless communication through the ground console.

[0031] In order to get rid of the traditional signal source calibration method’s dependence o...

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Abstract

The embodiment of the invention provides a weather radar calibration method and system based on an unmanned aerial vehicle. The method is characterized in that the method comprises the steps: controlling an unmanned aerial vehicle provided with an airborne calibration device to fly to a predetermined spatial position in a wireless communication mode through a ground console; and controlling the airborne calibration device to calibrate a weather radar at the predetermined spatial position in a wireless communication mode through the ground console. Through the method, problems that an existingsignal source method is high in erection cost and cannot work under the special terrain condition can be solved; meanwhile, a problem that an existing metal ball calibration method is inaccurate in calibration result is solved.

Description

technical field [0001] The invention relates to the technical field of weather radar calibration, in particular to an unmanned aerial vehicle-based weather radar calibration method and system. Background technique [0002] At present, the signal source method and the metal ball method are mainly used for weather radar calibration. [0003] 1. The signal source method refers to setting up a signal source as a target in the far field, supporting the use of standard gain speakers, spectrum analyzers, vector network analyzers and other instruments, using the radar transmission signal power received by the signal source target and the radar receiving signal source The substitution relationship between the transmitted standard powers can be used to obtain the RCS value of the target to be measured, etc. [0004] 2. The metal ball method refers to the method of using a metal ball to calibrate the reflectivity of the radar. Usually, a balloon or a drone is used to carry the metal b...

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Application Information

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IPC IPC(8): G01S7/40B64C39/02
CPCG01S7/4052G01S7/4004B64C39/024G01S7/4082B64U2101/35B64U10/10B64U2201/20
Inventor 齐涛高玉春张雪芬何平周红根张富贵李斐斐
Owner CMA METEOROLOGICAL OBSERVATION CENT
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