| OFDM信号的多重分形谱特征盲识别算法 |
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| 引用本文： | 安金坤,田斌,易克初,于全.OFDM信号的多重分形谱特征盲识别算法[J].华南理工大学学报(自然科学版),2011,39(7):50-55. |
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| 作者姓名： | 安金坤 田斌 易克初 于全 |
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| 作者单位： | 1. 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
2. 中国电子设备系统工程公司研究所,北京,100039 |
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| 基金项目： | 国家级重点实验室基金资助项目(9140C13050108DZ46); 高等学校学科创新引智计划项目(B08038) |
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| 摘 要： | 针对非合作通信条件下的调制方式识别问题,提出了一种正交频分复用(OFDM)信号的多重分形谱特征盲识别算法.该算法首先提取通信信号多重分形谱最大值对应的奇异性指数以及通信解析信号平方处理后经两次傅里叶变换的幅频信号的多重分形谱跨度作为信号特征参数,然后通过多层决策树分类器完成对OFDM信号和单载波信号的识别.该算法提取的...
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| 关 键 词： | 正交频分复用 调制方式识别 单载波信号 多重分形谱 决策树 |
Blind Identification Algorithm of OFDM Signals Based on Multifractal Features |
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| An Jin-kun,Tian Bin,Yi Ke-chu,Yu Quan.Blind Identification Algorithm of OFDM Signals Based on Multifractal Features[J].Journal of South China University of Technology(Natural Science Edition),2011,39(7):50-55. |
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| Authors: | An Jin-kun Tian Bin Yi Ke-chu Yu Quan |
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| Institution: | An Jin-kun1 Tian Bin1 Yi Ke-chu1 Yu Quan2 (1.State Key Laboratory of Integrated Service Networks,Xidian University,Xi'an 710071,Shaanxi,China,2.Institute of China Electronic Equipment System Engineering Corporation,Beijing 100039,China) |
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| Abstract: | Proposed in this paper is a blind identification algorithm of orthogonal frequency division multiplexing(OFDM) signals based on multifractal features,which is applied to the modulation identification in non-cooperative communication.In this algorithm,first,two items,namely the singularity exponent of the maximum multifractal value from communication signals and the span of multifractal from the amplitude of twice Fourier transform of squared analytic communication signals,are extracted as signal feature par... |
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| Keywords: | orthogonal frequency division multiplexing modulation recognition single-carrier signal multifractal decision tree |
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