摘要
多电平正交幅度调制(Quadrature Amplitude Modulation,QAM)对载波的相位噪声非常敏感。针对WiMAX通信系统研究了相位噪声对QAM性能的影响,推导了16QAM误码率公式。实际设计制作了针对WiMAX通信系统的本振源,并在WiMAX完整的通信系统中进行了实测,并与理论值进行了比较。
The Quadrature Amplitude Modulation is sensitive to the phase noise, so affection of QAM by phase noise in the WiMAX system has been researched, formula of bit error rate to 16QAM has been derived. A local oscillator to the WiMAX system has been designed, tested, and compared with the theoretical value.
出处
《微计算机信息》
北大核心
2008年第4期241-242,314,共3页
Control & Automation
基金
上海市科委重大攻关项目<宽带无线接入系统研发与应用示范>的资助(05dz15008)
