Radio wave path prediction method and device

Abstract

The invention discloses a radio wave path prediction method and device. The method comprises the steps of extracting corresponding building component information from a building information model; performing format conversion on the building component information; acquiring electromagnetic parameters of building components corresponding to the building component information, generating multi-source information, and constructing a three-dimensional electromagnetic building model after the multi-source information is expressed by a specific data structure; according to transmitter and receiver parameters, predicting an electromagnetic wave propagation principle and a sparse characteristic of a multipath channel, electromagnetic waves playing a main role in signal propagation in the three-dimensional electromagnetic building model, obtaining building components influencing propagation of the electromagnetic waves in the building components according to the predicted electromagnetic waves,and obtaining a telex sparse matrix according to the obtained building components; and predicting received signal information of each position point in the building according to the telex sparse matrix. By adopting the method, the multi-source information is extracted and fully utilized, so that the calculation efficiency is improved, and the complexity is reduced.

Description

technical field [0001] The invention relates to a radio wave path prediction method and device, belonging to the field of radio wave propagation prediction. Background technique [0002] In recent years, with the development of mobile communication 4G, 5G technology and wireless sensor networks, wireless mobile users have increased rapidly, and better signal coverage needs to be provided. However, the signal propagation environment is complex and the multipath effect is very serious. It is necessary to accurately predict signal propagation to analyze signal coverage and provide users with better wireless services. [0003] The current mainstream method is to use ray tracing technology to predict radio wave propagation, and predict the propagation characteristics of electromagnetic waves based on building structures, which helps to effectively analyze the channel parameters of each path. However, this method requires an accurate 3D scene database. When the scene database is ...

AI Technical Summary

Problems solved by technology

However, when the environment is complex, the number of ray paths found by these methods is relatively large

Among them, many ray paths carry low signal energy, which are invalid paths. In the process of finding these paths, storage space will be wasted and unnecessary calculations will be increased.

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