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含有导频的OFDM信号子载波的调制方式识别方法 被引量：6

Modulation Identification Method of the Subcarriers with Pilots for OFDM Signals
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摘要 针对多径信道下含有导频的正交频分复用(OFDM)信号子载波调制方式难识别的问题,提出一种含有导频的OFDM信号子载波调制方式识别方法.该方法在OFDM信号的等效模型下,首先利用高阶累积量的组合特征识别出OFDM信号中的空子载波信号和纯导频子载波信号,然后利用两个基于矢量图最小环带模值方差的特征对提取出来的受导频影响较小的调制子载波信号进行调制方式的识别.仿真结果表明,该方法在多径信道下是有效可行的. A new modulation recognition method of the subcarriers with pilots for orthogonal frequency di- vision multiplexing （0FDM） signals is proposed. The method firstly identifies null subcarrier signals of the OFDM and the pure pilot subcarrier signals by combination features of higher order cumulants in the equivalent model of OFDM. Then, it recognizes the modulated subcarrier signals which are less affected by pilots using comparing the variance of sequences in the minimum ring of vectogram. Simulation shows that the proposed method is effective and feasible in the muhipath channels.
作者 刘明骞 李兵兵 赵雷 赵岩
机构地区 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 北京邮电大学信息与通信工程学院
出处 《北京邮电大学学报》 EI CAS CSCD 北大核心 2012年第4期42-45,共4页 Journal of Beijing University of Posts and Telecommunications
基金 国家自然科学基金项目(61271299) 国家高技术研究发展计划项目(2007AA01Z288) 高等学校学科创新引智计划项目(B08038)
关键词 调制识别 正交频分复用 高阶累积量 矢量图 modulation identification orthogonal frequency division multiplexing higher order cumu- lant vectogram
分类号 TN911.7 [电子电信—通信与信息系统]
  • 相关文献

参考文献5

  • 1Yucek T, Arslan H. A novel sub-optimum maximum- likelihood modulation classification algorithm for adaptive OFDM systems [ C ]//Proceeding of Wireless Communica- tions and Networking Conference. Atlanta: IEEE, 2004: 739 -744.
  • 2Huang Qishan, Peng Qicong, Shao Huaizhong, et al. A novel blind modulation classification algorithm for adap- tive OFDM systems [ C ]// Eleventh National Youth Con- ference on Communication. Mianyang: China Institute of Communication, 2006: 216-222.
  • 3Edfors O, Sandell M, Beek J, et al. OFDM channel esti- mation by singular value decomposition[J]. IEEE Trans On Comm, 1998, 46(7) : 931-939.
  • 4张路平,王建新.MQAM信号调制方式盲识别[J].电子与信息学报,2011,33(2):332-336. 被引量：28
  • 5刘明骞,李兵兵,王婧舒.多径信道下的OFDM信号带宽盲估计[J].华中科技大学学报（自然科学版）,2011,39(10):79-82. 被引量：5

二级参考文献22

  • 1冯祥,李建东.基于高阶循环累积量的SQAM信号调制识别算法[J].电子与信息学报,2007,29(1):125-128. 被引量：13
  • 2叶健,吴月娴,葛临东.基于高效自适应聚类算法的调制识别研究[J].计算机工程与设计,2007,28(3):506-508. 被引量：6
  • 3奚家熹,王宗欣.基于Hilbert变换的MQAM信号调制体制识别[J].通信学报,2007,28(6):1-6. 被引量：9
  • 4Dobre O A, Abdi A, and Bax-Ness Y, et al. Survey of automatic modulation classification techniques: classical approaches and new trends. IET Commun., 2007, 1(2): 137-156.
  • 5Kam-Tim W and Chi-Wah K. Clustering based distribution fitting algorithm for Automatic Modulation Recognition. IEEE Symposium on Computers and Communications, Aveiro, Portugal, 2007: 13-18.
  • 6Liu L K and Xu J D. A novel Modulation classification method based on high order cumulants. International Conference on Wireless Communications, Networking and Mobile Computing, Wuhan, China, 2006: 1-5.
  • 7Liu Y and Zhang Z P. High order QAM signals recognition based on layered modulation. International Conference on Communications, Circuits and Systems, Milpitas, USA, 2009: 73-76.
  • 8Shi Q H, Gong Y, and Guan Y L. Asynchronous classification of high-order QAMs. IEEE Wireless Communications and Networking Conference, Las Vegas, USA, 2008:1188-1193.
  • 9Xu Z N and Bai W L. A novel blind recognition algorithm for modulated M-QAM signals. International conference on communications and mobile computing, Kunming, China, 2009:461-465.
  • 10丁美玉,阔永红,高新波.数字信号处理——时域离散随机信号处理[M].西安:西安电子科技大学出版社,2002:136—144.

共引文献31

同被引文献36

  • 1韩钢,李建东,李长乐.自适应OFDM中信号盲检测技术[J].西安电子科技大学学报,2006,33(4):602-606. 被引量：12
  • 2张贤达.现代信号处理[M] .北京:清华大学出版社,2012:199-200.
  • 3Yang Lihua,Ren Guangliang,Qiu Zhiliang.A novel doppler frequency offset estimation method for DVB-T system in HST environment [ J ]. IEEE Transactions on Broadcast- ing,2012,58 ( 1 ) : 139-143.
  • 4Yerramalli S, Stojanovic M, Mitra U. Partial FFT demodu- lation: a detection method for highly Doppler distorted OFDM systems [ J ]. IEEE Transactions on Signal Pro- cessing,2012,60 ( 11 ) :5906-5918.
  • 5Gorcin A,Arslan H. Identification of OFDM signals under multipath fading channels [ C ]// Proceedings of Military Communication Conference. Piscataway : IEEE,2012 : 1-7.
  • 6Zhang Qi-yun, Dobre O A, Rajan S, et al. Recognition of single and muhicarrier digital modulations [ C ] // Pro- ceedings of Instrumentation and Measurement Technology Conference. Piscataway : IEEE ,2012 : 1676-1680.
  • 7Yiicek T, Arslan H. A novel sub-optimum maximum-like- lihood modulation classification algorithm for adaptive OFDM systems [ C] //Proceedings of Wireless Communi- cations and Networking Conference. Piscataway: IEEE, 2004:739-744.
  • 8Dennis M L, Sie K T, Asoke K, et al. Naive Bayes classifi- cation of adaptive broadband wireless modulation schemes with higher order cumulants[ C] //Proceedings of 2nd In- ternational Conference on Signal Processing and Commu- nication Systems. Piscataway : IEEE ,2008 : 1-5.
  • 9Haring L, Chen Y, Czylwik A. Efficient modulation classi- fication for adaptive wireless OFDM systems in TDD mode [ C]//Proceedings of Wireless Communications and Net- working Conference. Piscataway : IEEE ,2010 : 1-6.
  • 10Dai W,Wang Y Z,Wang J. Joint power estimation and modu- lation classification using second-and higher statistics [ C ]//Proceedings of Wireless Communications and Net- working Conference. Piscataway :IEEE,2(X)2:155-159.

引证文献6

二级引证文献15

北京邮电大学学报
2012年 第4期

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