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基于ZigBee的战场数话传输模块的设计与实现 被引量:2
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作者 张佳 白永强 李翠杰 《北京理工大学学报》 EI CAS CSCD 北大核心 2015年第10期1050-1055,共6页
为了实现战场上语音和数据的近距离无线传输,将语音传输与ZigBee无线网络相结合,利用ZigBee技术设计一个小型的无线网络,代替有线通信方式.以IAR的Embedded Workbench为开发平台,设计了控制模块、语音模块、无线通信模块、功率放大模块... 为了实现战场上语音和数据的近距离无线传输,将语音传输与ZigBee无线网络相结合,利用ZigBee技术设计一个小型的无线网络,代替有线通信方式.以IAR的Embedded Workbench为开发平台,设计了控制模块、语音模块、无线通信模块、功率放大模块、数据接口等模块硬件电路.采用RALCWI语音压缩算法保证话音质量,设计了2.4GHz ZigBee网络节点,组成2.4GHz ZigBee小型网络,在网络内自由传输语音和数据,并在软件上实现了语音处理和组网、无线收发数据、数据传输等功能,解决了战场上无线传输的问题. 展开更多
关键词 ZIGBEE 数话传输 无线传输
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High Performance of a TOA-TDOA Hybrid GSM Location System for Intelligent Transportation Systems
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作者 徐志扬 施鹏飞 《Journal of Donghua University(English Edition)》 EI CAS 2003年第3期84-87,共4页
This paper illustrates the performance of a mobile positioning technique applicable to a GSM network.An experimental system of a network-based GSM positioning for ITS has been proposed, and the hybrid TOA-TDOA method ... This paper illustrates the performance of a mobile positioning technique applicable to a GSM network.An experimental system of a network-based GSM positioning for ITS has been proposed, and the hybrid TOA-TDOA method based on GSM signaling has been analyzed and used. The performance of the proposed system is showed through simulations in urban and suburban environments. The accuracy for 67% mobile stations is 70 m in urban and 120 m in suburban. The accuracy, coverage and network load of positioning system are also analyzed. 展开更多
关键词 wireless location Time difference of arrival Angle of arrival Time of arrival GSM Intelligent transportation system
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