| 基于多进制数字的相位解调技术的分析 |
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| 引用本文： | 佘明辉,余轮.基于多进制数字的相位解调技术的分析[J].井冈山大学学报（自然科学版）,2011(2):67-70. |
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| 作者姓名： | 佘明辉 余轮 |
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| 作者单位： | 福州大学物理与信息工程学院;湄洲湾职业技术学院电子工程系; |
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| 基金项目： | 国家自然科学基金项目(60672146) |
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| 摘 要： | 文章介绍了多进制数字调制中的相位解调。文中在多进制数字相位调制系统模型基础上,引入了M进制相位调制信号的表达式,在多进制数字相位解调中分别对四相绝对相移键控和四相相对相移键控进行了详细地分析。并对四相绝对相移键控的解调采用与2PSK信号类似的方法进行解调,四相相对相移键控的解调分有相干解调和延迟解调两种分别进行了较详细地分析。
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| 关 键 词： | 数字调制 码元 比特 信噪比 |
ANALYSIS BASED ON THE M-ARY PHASE DEMODULATION |
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| SHE Ming-hui,YU Lun.ANALYSIS BASED ON THE M-ARY PHASE DEMODULATION[J].Journal of Jinggangshan University(Natural Sciences Edition),2011(2):67-70. |
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| Authors: | SHE Ming-hui YU Lun |
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| Institution: | SHE Ming-hui1,2,YU Lun1(1.College of Physics and Information Engineering,Fuzhou University,Fuzhou,Fujian 350108,China,2.Department of Electronic Engineering,Meizhouwan Vocational College,Putian,Fujian 351254,) |
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| Abstract: | The M-ary phase demodulation and detection were analyzed in this paper.The signal expressions of M-ary phase modulation were introduced based on the multi-band digital phase modulation system model.In the multi-band digital phase modulation,the four phase absolute phase shift keying and the four phase relative phase shift keying were respectively analysed in detail.Finally,the four phase absolute phase shift keying was demodulated in a similar method of the 2PSK signal,while the four phase relative phase sh... |
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| Keywords: | digital modulation code bit bit Signal-to-Noise |
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