基于高阶循环累积量的SQAM信号调制识别算法

冯祥; 李建东

doi:10.3724/SP.J.1146.2005.00602

基于高阶循环累积量的SQAM信号调制识别算法

doi: 10.3724/SP.J.1146.2005.00602

冯祥,
李建东

基金项目:

国家自然科学基金和微软亚洲研究院联合资助项目(60372048)，国家自然科学基金重大项目(60496316)，高等学校优秀青年教师教学科研奖励计划，教育部科学技术研究重点项目(104171)和国家863 计划重大课题(2005AA123910)资助课题

计量
- 文章访问数: 3821
- HTML全文浏览量: 98
- PDF下载量: 1372
- 被引次数: 0
出版历程
- 收稿日期: 2005-05-30
- 修回日期: 2005-10-15
- 刊出日期: 2007-01-19

Robust Modulation Classification Algorithm Based on Higher-Order Cyclic Cumulants for SQAM Signals with Frequency Offset

摘要

摘要: 该文利用通信信号的循环平稳特性，在循环累积量域内构造信号分类特征，提出了一种基于高阶循环累积量的调制识别算法，实现对SQAM信号分类。算法对载波频率偏差、时延和相位旋转具有稳健性，并可在多信号环境且存在载波频偏的情况下实现对感兴趣信号的识别。理论分析和仿真结果均证明了算法的正确性和有效性。
- 调制识别;高阶循环累积量;循环平稳性;SQAM
Abstract: An algorithm based on higher-order cyclic cumulants for the automatic classification of SQAM signals is proposed. The algorithm utilizes the cyclostationary property of communication signals and presents classification feature in cyclic cumulants domain. It is robust to the presence of carrier frequency offsets, time delay and phase offsets. Interesting signals can also be classified under the presence of interference signals and carrier frequency offsets. The efficiency of the proposed classification algorithm is verified via theoretical analysis and extensive simulations.

HTML全文

参考文献(1)

[1] Swami A and Sadler B M. Hierarchical digital modulation classification using cumulants [J].IEEE Trans. on Communications.2000, 48(3):416-429 [2] Marchard P, Lacoume J L, and Martret C. Classification of linear modulations by a combination of different orders cyclic cumulants [C]. in Proc. Workshop on HOS, Banff, Canada, 1997: 47-51. [3] Spooner C M. On the utility of sixth-order cyclic cumulants for RF signal classification [C]. in Proc. of the 34th Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, USA, 2001: 890-897. [4] Spooner C M. Classification of cochannel communication signal using cyclic cumulants [C]. in Proc. of the 29th Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, USA, 1995: 531-536. [5] Dobre O A, Bar-Ness Y, and Su W. Higher-order cyclic cumulants for high order modulation classification [C]. in Proc. IEEE MILCOM, Boston, USA, 2003: 112-117. [6] Dobre O A, Bar-Ness Y, and Su W. Robust QAM modulation classification algorithm using cyclic cumulants [C]. in Proc. IEEE WCNC, Atlanta, USA, 2004: 745-748. [7] 陈卫东. 基于循环累量不变量的MPSK信号调制识别算法[J].电子与信息学报.2003, 25(3):320-325浏览 [8] 韩钢. 自适应单载波、多载波调制中信号盲检测技术研究 [D]. [博士论文], 西安: 西安电子科技大学, 2003. Han Gang. Research on blind signal detection techniques in adaptive single- and multi-carrier modulation [D]. [Ph.D. Dissertation], Xidian University, 2003. [9] Gardner W A and Spooner C M. The cumulant theory of cyclostationary time-series, Part I: Foundation [J].IEEE Trans. on Signal Processing.1994, 42(12):3387-3408 [10] Spooner C M and Gardner W A. The cumulant theory of cyclostationary time-series, Part II: Development and Applications [J].IEEE Trans. on Signal Processing.1994, 42(12):3409-3429 [11] Dandawate V and Giannakis G B. Asymptotic theory of mixed time averages and kth-order cyclic-moment and cumulant statistics [J].IEEE Trans. on Information Theory.1995, 41(1):216-232 [12] 张贤达, 保铮. 非平稳信号分析与处理[M]. 北京: 国防工业出版社, 1998: 355-358.

施引文献

资源附件(0)

访问统计