Simple Approach for Joint Blind Equalization and Order Detection Suitable for QAM Signal

被引：0
|
作者：
Rao, Wei [1 ]
Lian, Jing-jing [1 ]
Xia, Fei [1 ]
Fan, Li [1 ]
Xu, Hui-jun [1 ]
Tan, Wen-qun [1 ]
Dai, Guo-xing [1 ]
机构：
[1] Nanchang Inst Technol, Dept Elect & Elect Engn, Nanchang, Peoples R China
来源：
IST: 2009 IEEE INTERNATIONAL WORKSHOP ON IMAGING SYSTEMS AND TECHNIQUES | 2009年
关键词：
blind equalization; order detection; cost function; SELF-RECOVERING EQUALIZATION;
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 blind equalization and order detection algorithm suitable for QAM signal is proposed. By exploiting the inherent structural relationship between the 4-QAM signal's coordinates and other higher-order QAM signals' coordinates, a novel cost function including channel blind equalization and signal order detection is defined. In such method, by changing the coordinates of input signals, higher-order QAM signal can be equalized by the statistics of 4-QAM and its order can be detected accurately. Examples of five modulation types - 4-QAM, 8-QAM, 16-QAM, 32-QAM and 64-QAM - are given. Simulation results show that the proposed algorithm achieves satisfactory performance.
引用
收藏
页码：339 / 342
页数：4
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