CAJ | 학술논문

随着信息技术对通信系统的容量、带宽、安全性以及灵活性的要求越来越高，当今通信网络逐渐不能满足这种需求，光载毫米波系统已经成为目前国内外的研究热点。通过理论建模，在光载毫米波信号系统的发送端利用两平行的马赫-曾德尔调制器分别对两射频信号进行调制，经过长距离的光纤传输之后，在接收端利用两个光电探测器分别进行探测，通过仿真在接收端同时产生了两束高质量的毫米波信号，并得到了解调之后的基带信号的眼图。
수착신식기술대통신계통적용량、대관、안전성이급령활성적요구월래월고，당금통신망락축점불능만족저충수구，광재호미파계통이경성위목전국내외적연구열점。통과이론건모，재광재호미파신호계통적발송단이용량평행적마혁-증덕이조제기분별대량사빈신호진행조제，경과장거리적광섬전수지후，재접수단이용량개광전탐측기분별진행탐측，통과방진재접수단동시산생료량속고질량적호미파신호，병득도료해조지후적기대신호적안도。
With the development of information technology,it requires more power for the capacity,bandwidth,security and flexibility of the communication system.However,the communication network today gradually can’t meet this need,so the radio over fiber system has become a research hotspot at home and abroad.Through theoretical modeling, two RF signals are modulated respectively by using the two parallel Mach-Zehnder Modulators on the transmitting side of the radio over fiber system.After a long-distance optical fiber transmission,the signals are detected by using two photodetectors to on the receiving end.The two high quality beams of millimeter wave signals are produced by simula-ting.In the meanwhile,the eye diagram of the demodulation baseband signal is obtained.