Joint carrier recovery and adaptive equalization for high-order QAM

被引：0
|
作者：
Tian, JH [1 ]
Shen, B [1 ]
Li, Z [1 ]
Su, RN [1 ]
Zhang, QL [1 ]
机构：
[1] Fudan Univ, State Key Lab ASIC & Syst, Shanghai, Peoples R China
来源：
2005 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS), VOLS 1-6, CONFERENCE PROCEEDINGS | 2005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：
In this paper, an improved joint carrier recovery and adaptive equalization algorithm for high-order quadrature amplitude modulation (QAM) is proposed. It combines a dual-mode adaptive equalization algorithm and an optimal frequency/phase detection algorithm, which operate in an optimal four-step sequence. Computer simulation and FPGA implementation demonstrate that this algorithm is robust even under low signal noise ratio (SNR) and especially suitable for high-order QAM receivers. The algorithm can acquire carrier frequency offset up to 300kHz@256QAM over typical coaxial cable channels.
引用
收藏
页码：928 / 931
页数：4
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