Construction method of meteor trail communication channel

Abstract

The invention discloses a construction method of a meteor trail communication channel module, mainly solving the problem of seamless compatibility between the traditional channel model with the simulation of the traditional communication transmission mechanism and a key technology. The construction method comprises the following steps of: firstly, dividing a meteor trail communication channel into a sparse underdense subchannel, an underdense multi-path subchannel, an underdense cluster subchannel, a meteor shower subchannel, an over-dense meteor subchannel without Rayleigh fading and an over-dense subchannel containing Rayleigh fading; respectively constructing channel models, wherein the high precision of each subchannel approaches to the physical characteristics of actual representative channel; then combining the six subchannels according to the actually measured statistical probability; and finally, acquiring a channel computer model capable of embodying various physical characteristics of a practical meteor trail channel. The invention has the advantages of simple calculation, easy expansion, easy modification and seamless compatibility link simulation and can improve the communication quality of the meteor trail.

Description

technical field [0001] The invention belongs to the technical field of communication, relates to a meteor trail communication channel, and is used for research on meteor trail communication. Background technique [0002] Meteor trail communication is a kind of over-the-horizon wireless communication method that realizes long-distance communication by using the ionization trail formed by meteoroids entering the atmosphere at high speed and frictional combustion at high altitude to reflect and scatter VHF radio waves. It has a special status in emergency communication, and it is the minimum means of emergency communication guarantee in case of physical or electronic attack. [0003] Meteor trail communication channel has significant unconventional and complex time-varying characteristics, and the particularity of the channel directly determines the effectiveness of the theoretical technology and transmission system adopted by the meteor trail communication system. Meteor trai...

AI Technical Summary

Problems solved by technology

In this method, a large number of mathematical formulas are usually used to predict and calculate the physical characteristics of the meteor channel. The existing meteor channel models at home and abroad include the SMRD empirical model of sudden meteor radiation density established by Russia's Kazan University and the international model of the United States. Meteorlink and other physical models of meteor channels established by application companies and computer science companies, but these models are mainly based on atmospheric physics and celestial body distribution characteristics. The purpose of modeling is to predict and describe the characteristics of meteor trail channels, which cannot be compared with existing The communication transmission system and key technology simulation are seamlessly compatible, so that there is no usable channel model in the study of meteor trail communication, and the modulation technology, communication protocol and coding scheme under this communication mode cannot be studied, which greatly limits Meteor communication quality improvement

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