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Air-ground channel modeling method and apparatus

A channel simulation, air-to-ground technology, applied in transmission monitoring, electrical components, transmission systems, etc., can solve the problem of low validity of the Longley-Rice model, and achieve the effect of improving the validity

Active Publication Date: 2017-07-28
BEIJING RUNKE GENERAL TECH
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Problems solved by technology

[0003] Since air-ground communication is an integral part of wireless communication, at present, the channel model of air-ground communication adopts an existing wireless channel model: the Longley-Rice model, but the Longley-Rice model is less effective in the use of air-ground communication

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] An embodiment of the present invention provides an air-to-ground channel modeling method, such as figure 1 As shown, the method includes:

[0029] S100. Determine surface terrain feature information that affects air-to-ground channel transmission in the current environment;

[0030] Specifically, analyze the geographic location and surface terrain of the current air-to-ground channel modeling environment. The current environment may be in open areas, urban ...

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Abstract

The invention discloses an air-ground channel modeling method and apparatus. The method comprises the following steps: determining surface terrain feature information affecting air-ground channel transmission in the current environment; obtaining known information of a transmitting end and a receiving end, weather information of the current environment and confidence coefficient information of a channel simulation scene, wherein the known information of the transmitting end and the receiving end comprises: position information of the transmitting end and the receiving end, related indexes of a transmitting and receiving antenna and related features of radio waves; extracting influence parameters affecting air-ground modeling according to the surface terrain feature information, the known information of the transmitting end and the receiving end, the weather information of the current environment and the confidence coefficient information of the channel simulation scene, wherein the influence parameters comprise transmission loss corresponding to a radio wave transmission mode and transmission attenuation corresponding to transmission path shielding; and constructing an air-ground channel model based on the influence parameters. The influence of the surface terrain in the vicinity of the receiving end to the radio wave transmission is considered in the model, thereby improving the validity of the model.

Description

technical field [0001] The present invention relates to the technical field of wireless channel modeling, in particular to an air-ground channel modeling method and device. Background technique [0002] Air-ground communication refers to the mutual communication between air vehicles and ground stations. The evaluation, simulation and analysis of air-ground communication need to be based on the established air-ground communication channel model. [0003] Since air-ground communication is an integral part of wireless communication, the channel model of air-ground communication currently adopts an existing wireless channel model: the Longley-Rice model, but the Longley-Rice model is less effective in the use of air-ground communication. Contents of the invention [0004] In view of this, the present invention provides an air-ground channel modeling method and device to improve the effectiveness of the air-ground channel model. [0005] In order to achieve the above purpose, ...

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Application Information

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IPC IPC(8): H04B17/391
CPCH04B17/391H04B17/3913
Inventor 付斌谈树峰周琳
Owner BEIJING RUNKE GENERAL TECH
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