| 一种新型无线数字窄带通信系统的设计与实现 |
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| 引用本文： | 高 翔,贾思强,杨 絮,陆起涌.一种新型无线数字窄带通信系统的设计与实现[J].电讯技术,2012,52(9):1432-1437. |
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| 作者姓名： | 高 翔 贾思强 杨 絮 陆起涌 |
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| 作者单位： | 1. 复旦大学电子工程系,上海,200433
2. 复旦大学电子工程系,上海200433;复旦大学无锡研究院,江苏无锡214131 |
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| 基金项目： | 国家高技术研究发展计划(863计划)项目(2011AA100701) |
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| 摘 要： | 提出了一种新型无线窄带通信系统的设计方案,该方案基于数字化的信源和信道编码方法,采用了两点调制和二次调制等技术,可兼容欧洲公众数字对讲机标准(DPMR),并通过研制得以实现.实测结果表明,系统接收灵敏度达-110 dBm,可满足远距离无线语音通信和中低码率的数据通信的要求.
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| 关 键 词： | 数字通信 窄带通信 语音通信 两点调制 二次调制 |
Design and implementation of a novel wireless narrow-band digital communication system |
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| GAO Xiang,JIA Si-qiang,YANG Xu and LU Qi-yong.Design and implementation of a novel wireless narrow-band digital communication system[J].Telecommunication Engineering,2012,52(9):1432-1437. |
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| Authors: | GAO Xiang JIA Si-qiang YANG Xu and LU Qi-yong |
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| Affiliation: | 1,2(1.Department of Electronic Engineering,Fudan University,Shanghai 200433,China;2.Wuxi Research Institute,Fudan University,Wuxi 214131,China) |
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| Abstract: | A method is proposed about the design of a novel wireless narrow-band communication system.The method is based on digital source coding and digital channel coding.The method employs techniques such as two-point modulation and second modulation,which is compatible with the standard of Digital Private Mobile Radio(DPMR).The method is implemented through research and development.The result of experiments shows that the receiving sensitivity of the system reaches -110 dBm.The system can meet the demands of long-distance voice communication or long-distance data communication with medium or low bit rate. |
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| Keywords: | digital communication narrow-band communication voice communication two-poi
nt modulation second modulation |
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