Lightning location method based on lightning multi-variant data auto-correlation time difference algorithm

Abstract

The application discloses a lightning location method based on a lightning multi-variant data auto-correlation time difference algorithm. The method comprises the following steps: performing noise suppression preprocessing on electromagnetic wave signals monitored by each monitoring station; cutting synchronous data of each monitoring station; solving auto-correlation time difference t among the synchronous data; performing lightning position calculation according to a time difference location equation, wherein the time difference location equation is as shown in the specification, (x, y, z, t) represents the generation position and generation time of a radiation source; (xi, yi, zi) represents the position of the ith observation station; ti represents time of signals measured at the ith observation station; and c is an electromagnetic wave propagation speed in the atmosphere. The lightning location method based on the lightning multi-variant data auto-correlation time difference algorithm provided by the application is small in calculated amount, high in speed, high in flexibility and high in locating precision and has extremely high practical value in the field of lightning study.

Description

technical field [0001] The present application relates to the technical field of lightning location, in particular to a lightning location method based on the multivariate data autocorrelation time difference algorithm of lightning. Background technique [0002] The occurrence of lightning may cause many hazards. For example, it may cause the tripping of the transmission line of the power grid. Troubleshoot the fault point. Areas with frequent lightning and lightning are usually located in mountainous areas, and line inspection and maintenance personnel have to travel over mountains and mountains, which is time-consuming and labor-intensive. The failure of some key lines may cause serious consequences such as delaying power transmission and reducing the safety and stability of the power grid. In order to improve the troubleshooting efficiency of lightning-induced faults and reduce the consequences of lightning, people continue to study lightning location. [0003] Existin...

AI Technical Summary

Problems solved by technology

The characteristic of this method is that it can locate cloud flashes and ground flashes at the same time, and can understand the general discharge process of lightning, but the detection distance is short, it is difficult to commercialize, and it can only be used for scientific research

The thunder location method uses the propagation speed of sound in the air and the propagation speed of light in the air. After the lightning occurs, the observer will first see the lightning process and then hear the thunder, and use this time difference to estimate the distance between the lightning occurrence location and the observer. The distance, this method can only be used for estimation, not for precise positioning

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