Efficient carrier recovery for high-order QAM

被引：0
|
作者：
Zhi, Liu
Zhou, Jiang
Qing, Li
Zeng Xiaoyang
机构：
来源：
ICCE: 2007 DIGEST OF TECHNICAL PAPERS INTERNATIONAL CONFERENCE ON CONSUMER ELECTRONICS | 2007年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel carrier recovery algorithm for high-order quadrature amplitude modulation (QAM) is proposed in this paper. Besides the traditional decision-directed phase detector, the algorithm employs an improved polarity-based phase detector to extend the acquisition range of carrier frequency offset. And when combined with a dual-mode adaptive equalization algorithm, it can be used in the application over multi-path channels. Simulation results demonstrate that it can deal with carrier frequency offset up to 960kHz@256QAM over AWGN channels and 690kHz@256QAM over typical coaxial cable channels at a baud rate of 6.9Msps. Meanwhile, its complexity is quite low.
引用
收藏
页码：351 / 352
页数：2
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