| 一种实用的数字集群方案的研究 |
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| 引用本文： | 周庆华,鲁昆生,仲涛.一种实用的数字集群方案的研究[J].华中科技大学学报(自然科学版),2003,31(4):79-81. |
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| 作者姓名： | 周庆华 鲁昆生 仲涛 |
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| 作者单位： | 1. 华中科技大学电子与信息工程系
2. 云南省玉溪师范学院计算机科学系 |
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| 摘 要： | 结合第二代移动通信系统GSM蜂窝网及陆地集群无线通信集群网提出了一种实用的数字集群移动通信方案．即采用TETRA系统的信源编解码和信道编解码技术，调制解调采用GsM蜂窝移动通信系统的GMSK技术，对国内成熟的模拟集群系统稍加改进，如将基带话音处理及载波调制数字化，就成为国内企业可批量生产的数字集群系统．并用硬件及软件对此方案进行了仿真，分析结果表明这是一种易于实现，性能良好的数字集群移动通信系统方案．
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| 关 键 词： | 数字集群系统 陆地集群无线通信 高斯最小频移键控 两点注入式锁相调频 移动通信系统 |
| 文章编号： | 1671-4512(2003)04-0079-03 |
| 修稿时间： | 2002年9月12日 |
Research on digital trunking scheme |
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| Zhou Qinghua Lu Kunsheng Zhong Tao Zhou Qinghua Postgraduate, Dept. of Electronics & Information Eng.,Huazhong Univ. of Sci. & Tech.,Wuhan ,China..Research on digital trunking scheme[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2003,31(4):79-81. |
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| Authors: | Zhou Qinghua Lu Kunsheng Zhong Tao Zhou Qinghua Postgraduate Dept of Electronics & Information Eng Huazhong Univ of Sci & Tech Wuhan China |
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| Institution: | Zhou Qinghua Lu Kunsheng Zhong Tao Zhou Qinghua Postgraduate, Dept. of Electronics & Information Eng.,Huazhong Univ. of Sci. & Tech.,Wuhan 430074,China. |
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| Abstract: | Combined with the TETRA digital trunking system and GSM mobile communication system, a digital scheme was presented. The scheme was composed of the speeding compression encoding algorithm, channel encoding and decoding algorithm in TETRA system and GMSK modulation and demodulation in GSM system. The analogy trunking system could be improved by implementing the digital audio, modulation and demodulation. The scheme was simulated by soft and hard methods. The simulation results showed that the scheme could easily work and had excellent performance. |
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| Keywords: | digital trunking system terrestrial trunked radio (TETRA) Gaussian minimun shift keying(GMSK) two point modulation |
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