| 基于幅度概率分布研究骚扰对通信系统的影响 |
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| 引用本文： | 杨飞,沙斐,王国栋.基于幅度概率分布研究骚扰对通信系统的影响[J].北京交通大学学报(自然科学版),2008,32(5). |
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| 作者姓名： | 杨飞 沙斐 王国栋 |
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| 作者单位： | 北京交通大学电子信息工程学院,北京,100044;北京交通大学电子信息工程学院,北京,100044;北京交通大学电子信息工程学院,北京,100044 |
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| 基金项目： | 国家无线电监测中心资助项目 |
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| 摘 要： | 通过目前学术界广泛关注的幅度概率分布(APD)检测方法与传统电磁兼容测量方法的比较,说明了幅度概率分布统计测量方法的优越性.并且采用统计测量方法来研究骚扰对数字通信系统的影响,以PAM二进制调制系统为例,推导出了骚扰的APD与通信系统误码概率之间的关系式,给出了骚扰的幅度概率分布测量结果与对应干扰下的数字通信系统的误码概率两者之间的联系.本文的研究结果对于制订电子设备的电磁辐射限值具有参考价值.
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| 关 键 词： | 电磁兼容 幅度概率分布 数字通信系统 误码概率 测量检波器 |
On Studying the Effects of Disturbances on Communication Systems by Using Amplitude Probability Distribution |
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| YANG Fei,SHA Fei,WANG Guodong.On Studying the Effects of Disturbances on Communication Systems by Using Amplitude Probability Distribution[J].JOURNAL OF BEIJING JIAOTONG UNIVERSITY,2008,32(5). |
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| Authors: | YANG Fei SHA Fei WANG Guodong |
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| Abstract: | In this paper,we compare the traditional electromagnetic compatibility(EMC)measuring methods with amplitude probability distribution(APD),which has been paid extensive attention internationally.And then the advantages of APD measuring method are presented.What's more,we study the effects of disturbances on digital communication systems by using APD and take the binary PAM modulated systems as an example to derive the relation formula between the APD of disturbance and the BEP of the communication systems.Then the relationship between the APD measuring results of disturbances and the bit error probability(BEP)of digital communication systems is illustrated.The research results can be used to determine the electromagnetic emission limits of the electronic devices. |
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| Keywords: | electromagnetic compatibility(EMC) amplitude probability distribution(APD) digital communication system bit error probability(BEP) measurement detector |
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