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

页码：339 / 342

页数：4

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