Time division multiplexing unmanned aerial vehicle swarm communication method based on chaotic spread spectrum

Abstract

According to the time division multiplexing unmanned aerial vehicle swarm communication method based on chaotic spread spectrum provided by the invention, a chaotic spread spectrum system is introduced based on a time division multiplexing communication system, the number of user information which can be transmitted in an original unit time slot is increased from 1 to N, and the number of effective users in a whole system period is increased from M to N * M; the problems that a time division multiple access communication system is low in transmission rate and long in communication period are effectively solved. The chaotic sequence has approximately ideal self-correlation and cross-correlation characteristics, and can effectively solve the problem of large interference among users in a swarm unmanned aerial vehicle system.

Description

technical field [0001] The invention belongs to the field of wireless digital communication, and in particular relates to a time-division multiplexing unmanned aerial vehicle bee colony communication method based on chaotic spread spectrum. Background technique [0002] Modern and future UAV warfare is no longer purely armed confrontation, nor is it purely single-system combat, but swarm warfare with swarm UAV systems as the main combat force. Swarm combat is mainly a combat method in which unmanned aerial vehicles of a certain scale are organized autonomously and independently according to combat tasks to form an attacking swarm, and attack the enemy through contact and coordination between members. The UAV swarm combat system puts forward higher requirements for the communication system as the core of UAV information interaction, and mainly completes the transmission of formation collaborative control information, cooperative reconnaissance information, and cooperative pos...

AI Technical Summary

Problems solved by technology

[0003] The swarm communication system needs to solve the problems of low rate, long period, small number of users and multiple access interference in the multi-user communication system, so as to realize accurate real-time data sharing among multiple users of swarm drones

At present, the UAV swarm communication system usually adopts the time division multiplexing system to realize multi-user information transmission. The time division multiplexing system can effectively solve the problem of multiple access interference. As long as a sufficient number of time slots are allocated, the corresponding number of user information can be transmitted. However, with the increase of the number of users, problems such as long communication cycle of the whole system and low transmission rate of a single user are exposed.

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