基于ADL5385的128QAM发送器设计  

Design of 128QAM transmitter based on ADL5385

作　　者：张骞 

机构地区：[1]解放军广州通信学院,广东广州510500

出　　处：《电子设计工程》2009年第3期111-113,共3页Electronic Design Engineering

摘　　要：幅度与相位相结合的多进制正交幅度调制(MQAM)技术利用载波幅度和相位传递信息比特,具有充分利用带宽、抗噪声能力强等优点,广泛应用于电视、微波通信、光传输等系统。MQAM发送器是研究MQAM调制解调技术的基础。ADL5385是一款硅半导体单片正交调制器件,其频率范围为50～2 200 MHz。探讨了利用ADL5385设计的155Mb/s(STM-1)128样点QAM发送器,为研究MQAM提供借鉴。MQAM technology transmits information bits by means of amplitude and phase of carrier at the same time ,which has many advantages as using bandwidth fully and having more anti-noisy eharacteristics.MQAM has been used in the systems of TV, microwave communication and light transmission.To design MQAM transmitter is the base of studying modulation and demodulation technology of MQAM.ADL5385 is a silicon quadrature modulator for use from 50MHz to 2200MHz produced by analog deviees,lnc.The paper discusses the designation of 155Mbps （STM-1）128QAM transmitter using ADL5385 which makes reference for MQAM study.

关 键 词：ADL5385 STM-1 多进制正交幅度调制(MQAM) 发送器 

分 类 号：TD672[矿业工程—矿山机电]