期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：252
期号：4
页码：1-8
DOI：10.1088/1755-1315/252/4/042060
出版社：IOP Publishing
摘要：With the rapid growth of automobiles, subways and high-speed rails have brought great convenience to our lives, but they also posegreat challenges to existing communication systems. The mobile terminal moves at a high speed, causing the channel fading to exhibit rapid time-varying characteristics, bringing multipath effects and Doppler effects, causing problems such as "short transmission distance", "long delay", and "low resolution" in the communication system. In view of the above problems, the system adopts the 802.11a protocol standard in wireless communication as the theoretical basis of communication. Through theoretical simulation and software and hardware design, a COFDM wireless communication system based on zero-IF architecture is developed. The system can stably receive real-time video captured by the high-definition camera in the transmitter when the receiver moves at high speed.
