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中文摘要：
随着无线传感器网络的研究，无线传感器网络的定位已经成为非常重要的研究内容。提出基于锚节点动态选择和调整的定位方法。它首先通过传感器智能节点发射功率的控制动态地选择最优的三个锚节点，在把接收到的信号强度（RSSI）转化成估算距离之后，提取最精确的两个距离，最后根据锚节点坐标转移的方法来对节点进行定位。实验证明此优化手段可以显著改善定位精度，具有较好的抗干扰能力。
英文摘要：
With the progress of research on Wireless Sensor Networks, localisation in Wireless Sensor Networks has become a very important research topic. In this paper we present a localisation technique based on dynamic anchor nodes selection and adjustment. The technique firstly selects three of the best anchor nodes dynamically through controlling the transmission power of intelligent sensor nodes, after convening the RSSI（received signal strength indication） to an estimated distance,two of the most accurate distances are picked up. Then the nodes are located based on the method of transfer of anchor nodes coordinate. Experiments show that the optimisation technology can obviously improve the accuracy of the localisation, and have a better anti-interference ability.
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