太阳光通信系统研究及样机研制OA

In the field of military information confrontation,in recent years,scholars have proposed the concept of integrated operations across air,space,land,and sea,expanding the electromagnetic spectrum,space,and cyberspace into the battlefield.By using directed energy such as lasers,microwaves,and ion beams to suppress battlefield power,the enemy's information networks across air,sea,land,and space can be disabled.This paper explores the research of a communication system and key technologies using sunlight as a carrier,which belongs to covert and secure information communication,and can play a significant role in battlefield information confrontation.The research challenges are:first,the poor spectral purity of sunlight and the high background light noise make it unsuitable for communication;second,research in this area is very limited both domestically and internationally,with almost no references available.This paper studies the basic principles and components of the solar light communication system and conducts detailed simulations of the system's power link relationship.Under a communication bandwidth of 10 MHz,the minimum received optical power can reach-50 dBm,while the signal-to-noise ratio can reach about 20 dB.Atmospheric channel simulations indicate that the red spectrum should be selected as the communication band.The solar light communication system's components for light collection,emission,and reception were designed in detail,with prototype testing to verify technical indicators.The experiments employed a switching modulation method,achieving data transmission at a communication speed of 10 kbps within a communication distance of 200 m.The results show that solar light communication is entirely feasible and capable of long-distance communication.