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An off-board verification system for phased array weather radar calibration

A weather radar and verification system technology, applied to radio wave measurement systems, instruments, etc., can solve the problems of inability to calibrate multiple times in real time and high cost, and achieve low cost, high precision, and good use effect

Active Publication Date: 2022-03-08
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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  • An off-board verification system for phased array weather radar calibration
  • An off-board verification system for phased array weather radar calibration
  • An off-board verification system for phased array weather radar calibration

Examples

Experimental program
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Embodiment

[0050] 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.

[0051] a) The radar starts up normally;

[0052] 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".

[0053] 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 an off-board verification system for phased array weather radar calibration. After the detection data of the phased array weather radar system is collected by a data acquisition unit, it is network-transmitted to the radar product generation system in the form of basic data. After processing the data and processing the products, the radar product generation system transmits them to the display terminal or other data centers designated by the customer. There is a data fusion module, the data processing of the external verification system is provided with a common natural target acquisition module, the data processing of the common natural target acquisition module is provided with a spatial analysis module and an intensity analysis module, and the external verification system There is a systematic error analysis and verification module in the data processing. The invention automatically calculates and acquires qualified natural targets, performs statistics and calculation of system errors, and completes the system error verification of the whole radar machine.

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 Patents(China)
IPC IPC(8): G01S7/40
CPCG01S7/40
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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