Electromagnetic wave optimization model based on particle filter algorithm

Abstract

The invention relates to the field of particle filter algorithms, in particular to an electromagnetic wave optimization model based on a particle filter algorithm. The method comprises the following steps: performing certain limitation on the cross sectional area of a coal mine tunnel, the concentration and the property of dust particles and fog particles in tunnel air, the propagation frequency of electromagnetic waves and the like; improving an underground electromagnetic wave transmission model, and obtaining fitting values of three parameters through a particle filtering algorithm through multiple iterations, wherein the influence of the change of the cross section size of the roadway on propagation characteristics is different along with the difference of polarization directions, the cross section area of the roadway is increased, attenuation of electromagnetic waves is reduced, and the dust concentration is as small as possible. According to the method, more description parameters are introduced into the coal mine underground electromagnetic wave optimization model, an optimization model more suitable for coal mine underground electromagnetic wave transmission is established, and the method has important significance in effectively preventing coal mine gas accidents and guaranteeing the safety of coal miners, so the model can better fit the real underground electromagnetic wave propagation condition.

Description

technical field [0001] The invention is based on the field of particle filter algorithms, and in particular relates to an electromagnetic wave optimization model based on particle filter algorithms. Background technique [0002] In the actual underground environment of coal mines, wireless transmission is affected by various complex factors such as operating frequency, conductor, shaft wall reflection, and on-site electromagnetic interference. Electromagnetic wave transmission attenuation model, but the model has only one parameter, and the description of the transmission attenuation model of electromagnetic waves in coal mines is not accurate. This paper introduces more descriptive parameters, establishes an optimization model that is more suitable for the transmission of electromagnetic waves in coal mines, and fits the transmission of electromagnetic waves. Contents of the invention [0003] In order to solve the problem that the existing technology lacks the serious a...

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Problems solved by technology

[0002]In the actual underground environment of coal mines, wireless transmission is affected by various complex factors such as operating frequency, conductor, shaft wall reflection, and on-site electromagnetic interference, and there are differences in the transmission of electromagnetic waves. The degree of attenuation is currently more common based on the electromagnetic wave transmission attenuation model based on the intensity of the received signal indication, but this model has only one parameter, and the description of the transmission attenuation model of electromagnetic waves in coal mines is not accurate

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