基于决策理论算法的单载波多载波数字调制识别技术研究  

Research of Identification Technology of Digital Modulated by Single Carrier and Multicarrier Based on Decision Theory Algorithm

作　　者：杨发权[1] 李赞[2] 罗中良[3] 

机构地区：[1]佛山科学技术学院电子与信息工程学院,广东佛山528000 [2]西安电子科技大学综合业务网理论及关键技术国家重点实验室,陕西西安710071 [3]惠州学院电子科学系,广东惠州516007

出　　处：《中山大学学报（自然科学版）》2013年第1期17-22,共6页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：国家科技重大专项资助项目(2010ZX03006-002-04);国家自然科学基金资助项目(61072070);教育部博士学科点基金资助项目(20110203110011);ISN国家重点实验室自主课题资助项目(ISN1101002);高等学校学科创新引智计划(B08038);广东省科技计划资助项目(2011B010200030;2012B010100038)

摘　　要：研究基于决策理论算法的单载波多载波无线数字调制信号的特征参数提取与自动识别技术,提出了适合单载波多载波数字调制识别的决策分类器及相应识别步骤。在瞬时相位提取时,首次采用去相位折叠算法纠正相位折叠的影响,提高了特征参数的准确性。仿真结果表明,该方法取得较好的识别效果,且系统易于实现,在信号识别中具有广泛的应用前景。The characteristic parameter extraction and automatic identification technology of wireless dig- ital signal modulated by single carrier and multicarrier based on decision theory algorithm are researched mainly and then the decision classifier, the identification steps corresponding which suitable for single carrier and multicarrier digital modulation recognition are put forward. A phase folding algorithm to cor- rect the influence of phase folding was first used in instantaneous phase extraction and the accuracy of characteristic parameters was improved. The simulation results show it has good recognition effect, the system is easy to realize and it has a broad prospect of application in the signal recognition.

关 键 词：决策理论算法 单载波多载波数字调制 特征参数提取 调制识别 

分 类 号：TN911[电子电信—通信与信息系统]