| 基于时频分布的扩展的二元相移键控信号解调算法 |
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| 引用本文： | 王红星,王洪利,毛忠阳.基于时频分布的扩展的二元相移键控信号解调算法[J].吉林大学学报(工学版),2011,41(5):1491-1496. |
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| 作者姓名： | 王红星 王洪利 毛忠阳 |
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| 作者单位： | 1. 海军航空工程学院电子与信息工程系,山东烟台,264001
2. 海军航空工程学院研究生管理大队,山东烟台,264001 |
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| 基金项目： | 国家自然科学基金项目(60772056) |
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| 摘 要： | 在已有的扩展二元相移键控(EBPSK)调制信号模型基础上,从非平稳信号分析方法入手,对EBPSK调制信号的时频分布特性进行了详细推导,建立了EBPSK信号相位跳变与时频分布幅度的关系模型,利用该模型提出了基于时频分布的EBPSK解调算法,并给出了相应的解调器结构。对基于时频分布的EBPSK信号解调器性能进行了分析,讨论了解调器的判决门限选取方法。分析表明,基于时频分布的EBPSK信号解调算法不但简化了EBPSK解调器结构,获得了优异的EBPSK调制系统差错性能,而且为通信信号的非平稳信号处理提供了新的可行方案。
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| 关 键 词： | 通信技术 非平稳信号分析 时频分布 相位跳变频带 扩展的二元相移键控 |
Analysis of EBPSK demodulation algorithm based on time-frequency distribution |
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| WANG Hong-xing,WANG Hong-li,MAO Zhong-yang.Analysis of EBPSK demodulation algorithm based on time-frequency distribution[J].Journal of Jilin University:Eng and Technol Ed,2011,41(5):1491-1496. |
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| Authors: | WANG Hong-xing WANG Hong-li MAO Zhong-yang |
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| Affiliation: | WANG Hong-xing1,WANG Hong-li2,MAO Zhong-yang1(1.Department of Electronic Engineering,Naval Aeronautical and Astronautical University,Yantai 264001,China,2.Student's Brigade,China) |
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| Abstract: | Base on existing Extended Binary Phase Shift Keying(EBPSK) signal model,the time-frequency characteristic of EBPSK was analyzed using nonstationary signal analysis method.A model of the relationship between phase discontinuity and the amplitude of time-frequency distribution of EBPSK signal was proposed.Using this model,a time-frequency distribution based EBPSK demodulation algorithm was developed,and the structure of the demodulator was given.The performance of the demodulation algorithm was analyzed,and t... |
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| Keywords: | communication nonstationary signals analysis time-frequency distribution discontinuity of phase bandwidth extended binary phase shift keying(EBPSK) |
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