电信科学 ›› 2012, Vol. 28 ›› Issue (6): 63-67.doi: 10.3969/j.issn.1000-0801.2012.06.016

• 研究与开发 • 上一篇    下一篇

GLSFBC-OFDM信号调制识别算法 *

战金龙1,郭永明2,卢建军1   

  1. 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
  • 出版日期:2012-06-15 发布日期:2017-06-28
  • 基金资助:
    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;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

Modulation Recognition for GLSFBC-OFDM Signals

Jinlong Zhan1,Yongming Guo2,Jianjun Lu1   

  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
  • Online:2012-06-15 Published:2017-06-28

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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%。

关键词: 调制识别, 高阶累积量, OFDM, GLSFBC

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.

Key words: modulation recognition, high-order cumulants, OFDM, GLSFBC

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