| 利用分形合维数的OFDM信号与单载波信号识别研究 |
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| 引用本文： | 曾芳玲,张海川.利用分形合维数的OFDM信号与单载波信号识别研究[J].信号处理,2019,35(11):1904-1910. |
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| 作者姓名： | 曾芳玲 张海川 |
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| 作者单位： | 国防科技大学电子对抗学院 |
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| 基金项目： | 国家自然科学基金资助项目（61272333,61473237）；安徽省自然科学基金资助项目（1308085QF99, 1408085MF129）
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| 摘 要： | 针对OFDM信号与单载波信号的特点，首次把分形理论应用于OFDM信号的识别上，提出一种利用分形盒维数的OFDM信号和单载波信号的识别方法。通过对通信信号中分形盒维数的数学分析，分别计算出OFDM信号和常见单载波信号的分形盒维数，把分形盒维数作为特征值，采用基于分形盒维数的识别方法完成OFDM信号与单载波信号的识别。仿真结果表明，提出的方法具有计算复杂度低、识别准确度高等的特点。
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| 关 键 词： | 多载波 单载波 分形盒维数 特征值 盲识别 |
| 收稿时间： | 2016-05-13 |
The study on identification for OFDM signal and single carrier signal with fractal dimension box |
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| Affiliation: | College of Electronic Engineering, National University of Denfense Technology |
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| Abstract: | Aiming at the characteristic of OFDM signal and single carrier signal, we firstly applied the fractal theory to the identification for OFDM signal and proposed the identification method for OFDM with fractal dimension box. By mathematically analyzing the fractal dimension box of communication signal, we separately compute the fractal dimension box of OFDM signal and common used single carrier signal and use the fractal dimension box as identification feature to identify the OFDM signal and single carrier signal. The experimental results show that the proposed method has lower computation load and higher identification performance. |
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