摘要
视频信号传输时所需的传输带宽大,对实时性要求高。摄像头采集到视频信号后,通过发射机经无线信道到达接收机,在接收端恢复出视频信号。学生可以切身感受信号传输质量,认识信道的特性以及电路的特性对信号质量的影响。实验涵盖了基带信道编码和译码、调制和解调、射频收发、天线、无线信道等无线通信系统的所有内容。支持设计性和综合性实验,可进行基带硬件开发、射频电路设计、射频系统设计,满足不同层次学生的需求,帮助其更好地掌握无线通信理论知识。
Video signal transmission requires a large transmission bandwidth and high real-time performance. After the video signal is acquired by the digital camera, it is transmitted through wireless channel by the transmitter and resumed in the receiver. The students can sense the transmission quality and get to know the influence of the wireless channel and radio frequency circuits. The content of wireless communications, such as channel coding and decoding, modulation and demodulation, radio frequency front-end, antenna, wireless channel are covered by this experiment totally. The designing and comprehensive experiments are supported, and the hardware development, radio frequency circuits design and radio frequency system design are included. The experiment can meet the demand of the students at different levels and help them to master the knowledge of wireless communications well.
作者
魏建军
刘乃安
黑永强
幸新鹏
唐军
李晓辉
WEI Jianjun;LIU Naian;HEI Yongqiang;XING Xinpeng;TANG Jun;LI Xiaohui(School of Telecommunications Engineering,Xidian University,Xi’an 710071,China)
出处
《实验技术与管理》
CAS
北大核心
2020年第11期69-71,78,共4页
Experimental Technology and Management
基金
国家自然科学基金面上项目(61876143)
教育部产学合作协同育人项目(201901163010)。
关键词
视频信号
无线传输
编码解码
调制解调
射频前端
video signal
wireless transmission
coding and decoding
modulation and demodulation
radio frequency front end
