摘要
从分析海水性质对水下激光通信质量产生的影响出发,介绍了一种将时频调制技术应用于水下激光通信的方法,并对该方法的误码率性能通过计算机模拟与理论值进行比较分析。最后,讨论了分集重数与通信质量的影响和建议的适用范围,为水下激光通信抗衰落、高通信质量系统的设计提供参考。
From the analysis of the nature of seawater impact on the quality of underwater laser communication, a method that time-frequency shift keying（TFSK） applied in underwater laser communication is introduced in this paper. The comparison and analysis of BER performance for this method between the computer simulation and theoretical value are also given in this paper. In the final, the influence on communication from diversity numbers and the suggestion applicable scopes are discussed. This paper provides reference for the underwater laser communication system design of anti-fading and high-quality.
出处
《信息技术》
2009年第1期25-27,30,共4页
Information Technology
关键词
水下通信
分集接收技术
时频调制
4TFSK
underwater communication
diversity reception technique
time-frequency modulation
4TFSK
