摘要
为实现QPSK应用到无线激光通信中,该文对QPSK系统性能进行了理论研究。介绍了QPSK调制解调原理,对高斯白噪声信道的系统性能进行了研究,分析对比了在高斯白噪声信道下的系统误码性能。为基于副载波QPSK无线激光通信系统的研究奠定了理论基础。
For the application of the QPSK(Phase-Shift-Keying) to the wireless laser communication,this paper emphasizes the system of QPSK's performance,theoretically.In the paper,the principle of the QPSK's modulation and demodulation were introduced in brief and the performance of the system at white Gaussian noise(AWGN) channel was also analyzed carefully.The above results provide the theoretical foundation for the wireless laser communication system based on the QPSK with sub-carrier.
出处
《电脑知识与技术》
2011年第3X期1995-1996,共2页
Computer Knowledge and Technology
关键词
无线激光通信
QPSK调制解调
系统性能
误码性能
wireless laser communication
modulation and demodulation of QPSK
performance of system
performance of BER
