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Phased array weather radar calibration machine external verification system

Active Publication Date: 2021-11-23
NANJING NRIET IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Due to field tests or actual observations, it is generally impossible to meet the conditions for two radars to be observed on the same site, and the cost of using drone calibration is high, and it is impossible to calibrate multiple times in real time

Method used

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  • Phased array weather radar calibration machine external verification system
  • Phased array weather radar calibration machine external verification system
  • Phased array weather radar calibration machine external verification system

Examples

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Embodiment

[0052] According to a certain observation result of a phased array radar, the data of the same observation network and foreign radars at the corresponding time are obtained, and the off-board verification of the system error of the radar is carried out through the off-board verification system of the product generation system.

[0053] a) The radar starts up normally;

[0054] b) Select the off-board verification module on the product generation system, click "Verification Settings", and in the pop-up interface, select the target radar for off-board verification and the data path of the reference radar, such as a phased array radar data name It is "QZBADBVT200823210241730.040.gz", while foreign radar data has its own format and is stored by parameter. The data corresponding to the time and time is named "2020082321020400dBZ.vol".

[0055] c) Data processing starts "data fusion module 2", data fusion module 2 provides radar data according to external verification system 1, auto...

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Abstract

The invention discloses a phased array weather radar calibration machine external verification system, wherein detection data of a phased array weather radar system is acquired by a data acquisition unit and then is transmitted to a radar product generation system in the form of base data through a network, and the radar product generation system is adopted to process the data and process a product, and then transmitting to a display terminal or a customer-specified other data center is carried out. The radar product generation system is provided with an off-machine verification system, the data processing of the off-machine verification system is provided with a data fusion module, and the data processing of the off-machine verification system is provided with a common natural target acquisition module. A space analysis module and a strength analysis module are arranged in the data processing of the common natural target acquisition module, and a system error analysis and verification module is arranged in the data processing of the off-machine verification system. According to the system, natural targets meeting conditions are obtained through automatic calculation, statistics and calculation of system errors are carried out, and system error verification of the whole radar is completed.

Description

technical field [0001] The invention relates to the technical field of phased array weather radar, in particular to an external verification system for phased array weather radar calibration. Background technique [0002] The detection principle of the phased array weather radar is the same as that of the conventional Doppler weather radar. It transmits electromagnetic waves in a certain direction through the transmitter and antenna. When the electromagnetic waves encounter the target (raindrops, snow, ice crystals, hail, etc.), The backscattered energy returns to the radar antenna and is received by the receiver to obtain the target signal strength. [0003] CN201910370672.4 (public date 20190628) discloses a phased array weather radar internal calibration system, including: a signal transceiver component for signal acquisition and signal output after calibration; a calibration unit for generating excitation signals and Send the excitation signal to the signal transceiver ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40
Inventor 耿利宁刘新安张兴海陆建兵王钱雨辰
Owner NANJING NRIET IND CORP
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