A method for automatically judging lightning electromagnetic pulse types

Abstract

The invention discloses a method for automatically judging lightning electromagnetic pulse types. The method comprises the steps of coupling the characteristic parameters to serve as a characteristicpulse substrate; comparing the pulse signal (target) with the selected characteristic pulse substrate; determining the similarity between the target signal and the substrate to determine the type of the pulse; giving different thresholds according to the pulse characteristics and the client requirements to classify the obtained similarity values. The high-similarity section is the pulse of the same type as the substrate, the high classification accuracy can be ensured by increasing the number of pulse characteristic substrates, an efficient, intelligent and brand-new technical means is provided, and the method is not only limited to the field of lightning electromagnetic pulse signal type recognition, but also has good application prospects in other intelligent analysis and utilization.

Description

technical field [0001] The invention belongs to the technical field of signal detection and intelligent identification, and relates to a method for automatically identifying lightning electromagnetic pulse types. Background technique [0002] The process of lightning is accompanied by strong electromagnetic pulse radiation. Obtaining different types of electromagnetic pulse signals radiated by different processes of lightning through the recording of lightning electromagnetic pulse signals by various equipment can reveal the physical process of lightning occurrence. When recording lightning magnetic field pulse signals, it is found that each A pulse signal waveform with generally similar characteristics in a lightning process, the same characteristic waveform corresponds to a similar physical process, so in the study of lightning magnetic field signals, the statistics of some special similar characteristic pulse sequences are the key to scientific researchers in the field of ...

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Problems solved by technology

[0002] The process of lightning is accompanied by powerful electromagnetic pulse radiation. Obtaining different types of electromagnetic pulse signals radiated by different processes of lightning through the recording of lightning electromagnetic pulse signals by various devices can reveal the physical process of lightning occurrence. When recording lightning magnetic field pulse signals, it is found that each A pulse signal waveform with generally similar characteristics in a lightning process, the same characteristic waveform corresponds to a similar physical process, so in the study of lightning magnetic field signals, the statistics of some special similar characteristic pulse sequences are the key to scientific researchers in the field of lightning The problem we have been facing is that a large amount of data screening and statistics take up a lot of time, which makes the work efficiency extremely low. Manual recognition causes visual fatigue and cannot make a unified standard interpretation, and there will be misjudgments, missed judgments and other adverse results.

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