Full lightning cloud cloud-to-ground lightning recognition method

An identification method, the technology of cloud-to-ground lightning, applied in the electrical field, can solve the problems of influence and limit the understanding of the richness of thunderstorm activities

Inactive Publication Date: 2015-04-29
WUHAN UNIV
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AI Technical Summary

Problems solved by technology

However, it cannot provide cloud flash information and cannot observe the development process of early lightning electromagnetic radiation such as cloud flash, which affects and limits the understanding of the richness of thunderstorm activities.

Method used

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  • Full lightning cloud cloud-to-ground lightning recognition method
  • Full lightning cloud cloud-to-ground lightning recognition method
  • Full lightning cloud cloud-to-ground lightning recognition method

Examples

Experimental program
Comparison scheme
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Embodiment

[0044] Further illustrate below in conjunction with accompanying drawing and embodiment:

[0045] Such as figure 1 The full lightning cloud-to-ground lightning identification method first adopts a specific waveform parameter extraction method to extract the collected lightning electric field waveform parameters. Then use the extracted lightning waveform parameters to carry out weight comprehensive judgment. The type of lightning discharge is given according to the judgment result.

[0046] The extraction method of lightning electric field waveform parameters is as follows: figure 2 Shown:

[0047] (1) Rise time: Tr=Tp1-Ta1, the difference between the waveform 10% peak rising edge time Ta1 and the peak time Tp1;

[0048] (2) Falling time: Tf=Tb1-Tp1, difference between peak time Tp1 and waveform 10% peak falling edge time Tb1;

[0049] (3) Pulse width: Td=Tb1-Ta1, difference between 10% peak falling edge time Tb1 and waveform 10% peak rising edge time Ta1;

[0050] (4) F...

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Abstract

The invention relates to a full lightning cloud cloud-to-ground lightning recognition method. The method can be used for recognizing different lightning types, includes intracloud discharging and cloud-to-ground discharging recognition and recognition of a special cloud lightning event (NBE) and can be used for conventional cloud-to-ground lightning and position cloud lightning. A specific waveform parameter extraction method is adopted to extract collected lightning field waveform parameters, the extracted lightning waveform parameters are utilized for comprehensive judgment, and lightning discharging types are given according to judgment results.

Description

technical field [0001] The invention belongs to the electrical field, in particular to a method for identifying full lightning cloud-to-ground lightning. Background technique [0002] In the "International Decade for Disaster Reduction" established by the United Nations in 1987, lightning was one of the ten most harmful disasters to human beings. For a long time, lightning has posed a great threat to the natural resources that human beings depend on for survival and the material civilization created by human beings. Especially today, with the widespread use of microelectronic devices, the direct and indirect disasters caused by lightning are becoming more and more serious. Therefore, the research on lightning is becoming more and more serious. More and more attention has been paid to it. The lightning location network LLS operated in my country covers most areas of our country and can monitor ground lightning very well. However, it cannot provide cloud flash information and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/08G01R29/02G01R29/04
Inventor 蔡力王建国樊亚东周蜜李显强裴立献李泉新肖静郑钟楠
Owner WUHAN UNIV
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