正交幅度调制(QAM)信号的解调技术与实现

摘要

设计并用芯片实现了一个QAM的解调系统,该系统涉及下变频模块、A/D模块、码元时钟恢复模块、载波恢复模块和自适应均衡模块、前端纠错模块等。%In this paper, a QAM demodulation system is discussed and an ICimplementation is presented. The system includes downconvert module, A/D module, timing and carrier recovery module, equalizer and FEC module, etc.