| 基于奇异值分解的多载波调制信号盲识别算法 |
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| 引用本文： | 于志明,郭黎利,赵冰.基于奇异值分解的多载波调制信号盲识别算法[J].吉林大学学报(工学版),2011,41(3):805-810. |
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| 作者姓名： | 于志明 郭黎利 赵冰 |
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| 作者单位： | 哈尔滨工程大学信息与通信工程学院,哈尔滨,150001 |
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| 基金项目： | 国家自然科学基金项目(60772129) |
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| 摘 要： | 针对高斯白噪声背景条件下,IFFT实现的多载波调制信号类内盲识别问题,提出了一种基于对构造数据矩阵进行奇异值分解的多载波调制信号盲识别算法。在无需知道任何多载波调制信号数据信息和扩频码类型及其长度等先验知识的条件下,根据构造数据矩阵的较大非零奇异值个数,按照简单的判定准则,即可准确判断多载波信号的类型,并取得了良好的效果。无需传统识别算法中特征提取之后复杂的分类器设计,简化了识别流程。理论分析和仿真均验证了算法的正确性和有效性。
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| 关 键 词： | 通信技术 构造矩阵 奇异值分解 多载波调制 非零奇异值 盲识别 |
Blind recognition algorithm of multi-carrier modulation signal based on singular value decomposition |
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| YU Zhi-ming,GUO Li-li,ZHAO Bing.Blind recognition algorithm of multi-carrier modulation signal based on singular value decomposition[J].Journal of Jilin University:Eng and Technol Ed,2011,41(3):805-810. |
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| Authors: | YU Zhi-ming GUO Li-li ZHAO Bing |
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| Affiliation: | YU Zhi-ming,GUO Li-li,ZHAO Bing(School of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | In order to solve the intra-class blind recognition problem of IFFT-based multi-carrier modulation signals under the conditions of white Gaussian noise background,a blind identification algorithm of multi-carrier modulation signal is proposed.This algorithm is based on singular value decomposition of structural matrix.Without any prior knowledge of data information,the type and length of the spreading code,this algorithm can determine the type of multi-carrier modulation signal accurately according to the n... |
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| Keywords: | communication structural matrix singular value decomposition multi-carrier modulation nonzero singular value blind recognition |
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