交互式QPSK传输仿真系统的设计与实现
为了增强学生对通信原理的感性认识,以常用的四进制相位键控（QPSK）数字通信系统为例,设计了基于Matlab图形界面的交互式QPSK传输仿真系统.内容涵盖调制、信道、解调,各部分结构、功能按模块讲解,各功能通过仿真波形展示,亦可选择信号实测结果进行观测,增强系统的真实性.同时系统参数可以交互配置,通过图形直观地显示不同参数对系统的影响.分析成形滤波对调制波形的影响,并给出了相应的功率谱密度;研究了载波估计中频率偏差、相位偏差对解调结果的影响,并通过星座图的变化进行演示,同时给出频偏、相偏仿真的等效基带表示....
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| Published in | 实验室研究与探索 Vol. 33; no. 7; pp. 29 - 34 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
北京理工大学信息与电子学院,北京,100081
2014
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1006-7167 |
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| Abstract | 为了增强学生对通信原理的感性认识,以常用的四进制相位键控（QPSK）数字通信系统为例,设计了基于Matlab图形界面的交互式QPSK传输仿真系统.内容涵盖调制、信道、解调,各部分结构、功能按模块讲解,各功能通过仿真波形展示,亦可选择信号实测结果进行观测,增强系统的真实性.同时系统参数可以交互配置,通过图形直观地显示不同参数对系统的影响.分析成形滤波对调制波形的影响,并给出了相应的功率谱密度;研究了载波估计中频率偏差、相位偏差对解调结果的影响,并通过星座图的变化进行演示,同时给出频偏、相偏仿真的等效基带表示. |
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| AbstractList | TP206.1; 为了增强学生对通信原理的感性认识,以常用的四进制相位键控(QPSK)数字通信系统为例,设计了基于Matlab图形界面的交互式QPSK传输仿真系统.内容涵盖调制、信道、解调,各部分结构、功能按模块讲解,各功能通过仿真波形展示,亦可选择信号实测结果进行观测,增强系统的真实性.同时系统参数可以交互配置,通过图形直观地显示不同参数对系统的影响.分析成形滤波对调制波形的影响,并给出了相应的功率谱密度;研究了载波估计中频率偏差、相位偏差对解调结果的影响,并通过星座图的变化进行演示,同时给出频偏、相偏仿真的等效基带表示. 为了增强学生对通信原理的感性认识,以常用的四进制相位键控（QPSK）数字通信系统为例,设计了基于Matlab图形界面的交互式QPSK传输仿真系统.内容涵盖调制、信道、解调,各部分结构、功能按模块讲解,各功能通过仿真波形展示,亦可选择信号实测结果进行观测,增强系统的真实性.同时系统参数可以交互配置,通过图形直观地显示不同参数对系统的影响.分析成形滤波对调制波形的影响,并给出了相应的功率谱密度;研究了载波估计中频率偏差、相位偏差对解调结果的影响,并通过星座图的变化进行演示,同时给出频偏、相偏仿真的等效基带表示. |
| Author | 杨德伟 龙哲仁 王华 |
| AuthorAffiliation | 北京理工大学信息与电子学院,北京100081 |
| AuthorAffiliation_xml | – name: 北京理工大学信息与电子学院,北京,100081 |
| Author_FL | YANG De-wei LONG Zhe-ren WANG Hu |
| Author_FL_xml | – sequence: 1 fullname: YANG De-wei – sequence: 2 fullname: LONG Zhe-ren – sequence: 3 fullname: WANG Hu |
| Author_xml | – sequence: 1 fullname: 杨德伟 龙哲仁 王华 |
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| DocumentTitleAlternate | The Design and Implementation of Interactive QPSK Transmission Simulation System |
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| EndPage | 34 |
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| Keywords | frequency offset phase offset 四进制相移键控 仿真系统 频率偏移 相位偏移 QPSK(Quaternary Phase Shift Keying) simulation system Matlab |
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| Notes | YANG De-wei,LONG Zhe-ren,WANG Hu（ School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China） QPSK（Quaternary Phase Shift Keying） ; frequency offset; phase offset; Matlab; simulation system In order to increase students＇ comprehension to principles of communications,the common Quaternary Phase Shift Keying （QPSK） digital communication system is taken into consideration and an interactive QPSK transmission demonstration system based on the graphical user interface of Matlab is designed.Modulation,channel and demodulation parts are all included,and each one＇ s structures and functions are listed as modules,while the functions are illustrated using simulation waves.The measure results attained by testing real signal are displayed,so as to add the reality of platform.At the same time,the system can be configured interactively,and the influence of different parameters is shown by images intuitively.The effects of shaping filter are analyzed,and the power spectrum density figure is |
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| SubjectTerms | Matlab 仿真系统 四进制相移键控 相位偏移 频率偏移 |
| Title | 交互式QPSK传输仿真系统的设计与实现 |
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