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基于CC2431实现的无线传感器网络定位
姚俊邑, 傅 煊
中国工程物理研究院 电子工程研究所,四川 绵阳 621900
摘要:
无线传感器网络(WSN)中的定位技术是目前该领域研究的热点。对无线传感器网络中常用的定位技术进行了概述,着重分析了基于接收的信号强度指示(RSSI)定位技术的误差来源及减小误差的办法。重点讨论了利用CC2431内嵌的定位引擎实现的无线传感器网络定位功能及其原理,并通过实际测试验证了其定位准确度满足本应用需求,最后对该定位系统的各项性能指标进行了全面的分析总结。
关键词:  无线传感器网络  定位  接收信号强度指示  CC2431芯片
DOI:
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Location estimation based on CC2431 RF transceiver in WSN
YAO Jun-yi, FU Xuan
Institute of Electronic Engineering,China Academy of Engineering Physics,Mianyang Sichuan 621900, China
Abstract:
The location estimation in Wireless Sensor Networks(WSN) has been widely discussed in this field recently. This study introduced the location methods that were commonly used in IEEE 802.15.4 network and summarized the main sources of error in Received Signal Strength Indication(RSSI) based location estimation, combined with the approaches to improve location accuracy. The use of the location engine implemented in the CC2431 to estimate location was mainly discussed. The practical measurement results of location were given to prove that the CC2431 had met the application requirements. And all the performance criteria of the location system were analyzed.
Key words:  WSN  location  Received Signal Strength Indication  CC2431

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