| GLSFBC-OFDM信号调制识别算法 |
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| 引用本文： | 战金龙,郭永明,卢建军. GLSFBC-OFDM信号调制识别算法[J]. 电信科学, 2012, 28(6): 63-67 |
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| 作者姓名： | 战金龙 郭永明 卢建军 |
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| 作者单位： | 1. 西安邮电大学通信与信息工程学院,西安,710061
2. 国家无线电频谱管理研究所,西安,710061 |
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| 基金项目： | 国家科技重大专项基金资助项目，陕西省自然科学基金资助项目，陕西省教育厅科研计划基金资助项目，智能机器人湖北省重点实验室开放基金资助项目 |
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| 摘 要： | 提出了频率选择性衰落信道条件下区分GLSFBC结构的多载波信号(OFDM)和单载波信号(MFSK、MPSK、MQAM)的调制识别算法。该算法基于接收信号的高阶累积量,只需直接对接收的中频信号进行识别处理,不需要发射信号和信道的先验知识。仿真结果表明,在SNR高于7 dB时识别率可以达到90%。
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| 关 键 词： | 调制识别 高阶累积量 OFDM GLSFBC |
Modulation Recognition for GLSFBC-OFDM Signals |
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| Zhan Jinlong , Guo Yongming , Lu Jianjun. Modulation Recognition for GLSFBC-OFDM Signals[J]. Telecommunications Science, 2012, 28(6): 63-67 |
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| Authors: | Zhan Jinlong Guo Yongming Lu Jianjun |
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| Affiliation: | 1(1.Institute of Communication and Information Engineering,Xi’an University of Posts and Telecommunications,Xi’an 710061,China;2.The National Research Institute of Radio Spectrum Management,Xi’an 710061,China) |
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| Abstract: | A novel recognition algorithm is proposed over frequency selective fading channels to distinguish multi-carrier(OFDM) and single carrier(MFSK、MPSK、MQAM) signals of GLSFBC structure.The proposed algorithm is based on high-order cumulants,only needs to directly process the received IF signals,and doesn’t need to know the piror information of transmit signal and channel.Simulation results show that 90% correct classification rate could be reached when SNR is above 7 dB. |
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| Keywords: | modulation recognition high-order cumulants OFDM GLSFBC |
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