| 应急多方话务通信方案设计 |
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| 引用本文： | 姚引娣. 应急多方话务通信方案设计[J]. 电讯技术, 2011, 51(4): 12-15. DOI: 10.3969/j.issn.1001-893x.2011.04.003 |
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| 作者姓名： | 姚引娣 |
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| 作者单位： | 西安邮电学院 通信与信息工程学院，西安 710121 |
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| 摘 要： | 针对突发地质灾难中无法利用常规通信网络通信的问题,提出一种基于于嵌入式微处理器OMAP5912的实时多用户通信方案.采用WiFi无线网卡组建Ad Hoc网络,通过AIC23芯片实现语音采集和输出,利用动态多用户语音解码算法实现实时多用户话音通话功能.测试表明,该系统支持多用户同时语音通信功能,语音延迟约60 ms,适合...
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| 关 键 词： | 无线通信 应急通信 嵌入式系统 语音编解码 自组织网 |
Design of an Emergency Embedded Multi-party Call Communication System |
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| YAO Yin-di. Design of an Emergency Embedded Multi-party Call Communication System[J]. Telecommunication Engineering, 2011, 51(4): 12-15. DOI: 10.3969/j.issn.1001-893x.2011.04.003 |
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| Authors: | YAO Yin-di |
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| Affiliation: | YAO Yin-di(School of Communication and Information Engineering,Xi′an University of Posts and Telecommunications,Xi′an 710121,China) |
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| Abstract: | To solve the problem that conventional communication network can not be used in outburst geological disasters, this paper proposes a scheme of real time multi user voice communication based on embedded micro processor OMAP5912.In the scheme,Ad Hoc network is built based on WiFi wireless network card, voice input and output is realized by AIC23,and real-time multi-user voice communication is accomplished by adopting dynamic multi user voice decoding algorithm. Tests show that the scheme supports multi point to multi point real time voice chat,has only about 60ms voice delay,and can be applied in emergency voice communication. |
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| Keywords: | wireless communication emergency communication embedded system voice coding/decoding Ad Hoc network |
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