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Thunder and lightning orientation positioning optimization method based on deviation elimination

A technology of directional positioning and optimization method, which is applied in the measurement of electrical variables, electromagnetic field characteristics, measuring devices, etc., can solve the problems of reducing the directional accuracy and affecting the results of lightning strike positioning, and achieves the effect of reducing the impact and improving the lightning strike positioning accuracy.

Active Publication Date: 2016-03-16
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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Problems solved by technology

[0009] However, once the signal peak value used in the orientation algorithm contains interference components, the orientation accuracy will be reduced, which in turn will affect the result of lightning strike location

Method used

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  • Thunder and lightning orientation positioning optimization method based on deviation elimination
  • Thunder and lightning orientation positioning optimization method based on deviation elimination
  • Thunder and lightning orientation positioning optimization method based on deviation elimination

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Embodiment Construction

[0022] combined with image 3 , 4 The specific implementation method of the present invention will be described.

[0023] 1. Acquisition of signal waveform peak value and surrounding data:

[0024] The two sets of signal waveforms output by the orthogonal loop magnetic field antenna are sampled at the same frequency. When extracting multiple sets of data near the respective peaks of the two sets of signal waveforms (for example, more than five sets of data), it should be understood that the peaks of the two sets of signals appear at the same place.

[0025] The peak value of the east-west direction component output by the perpendicular magnetic field antenna and the value of the nearby waveform data, the unit is KA: 215, 213, 209, 205, 195, 186, 164, 135, 128, 113;

[0026] The peak value of the north-south component output by the orthogonal magnetic field antenna and the value of the nearby waveform data, the unit is KA: 114, 111, 109, 107, 98, 95, 83, 79, 68, 59.

[0027...

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Abstract

The invention relates to a thunder and lightning orientation positioning optimization method based on deviation elimination. The method comprises the following steps of step1, collecting two groups of signal waveform peak values output by an orthogonal annular magnetic field antenna and surrounding data; step2, according to the signal waveform collected in the step1, acquiring a plurality of direction-of-arrive presumption results; step3, eliminating a deviation of the direction-of-arrive presumption results in the step2; and step4, averaging the residual direction-of-arrive presumption results in the step3.

Description

technical field [0001] The invention relates to an optimization method for lightning orientation and location based on eliminating deviation. Background technique [0002] During the propagation of the radiated electromagnetic wave generated by the ground lightning to space, the electromagnetic wave waveform is distorted due to the different conductivity of the surface (earth, river, ocean, etc.). At the same time, due to the existence of communication electromagnetic waves and noise, the electromagnetic wave waveform collected by the signal receiving device of the lightning location system contains a large number of interference components. In order to reduce or avoid the influence of these interference components on the lightning strike location positioning results, it is necessary to optimize the collected electromagnetic wave signals. [0003] At present, the lightning location system has provided a large amount of data for the study of lightning activity and the design...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/08
CPCG01R29/0842
Inventor 田野傅明利
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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