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中文摘要：
无线传感器网络中声源的集中式定位方法具有较高的定位精度，但是网络能耗过大，不适合实际应用，因此，提出了一种基于能量的分布式EM定位方法．该方法以声音能量衰减模型为基础，以EM算法为核心，对节点荻取的声音能量信息进行分布式计算，估计得出声源的位置和能量．仿真实验表明，该方法在保证定位精度的情况下，能够有效地减小能量消耗，是一种具有应用价值的定位方法。
英文摘要：
The centralized localization scheme of acoustic source in WSN can get high localization accuracy, but it can＇t be used in practice due to the great deal of consumed energy, so a distributed EM localization scheme was proposed. The scheme based on acoustic energy decay model could process the distributed information from the sensors using EM algorithm to get the localization and energy of the source. Simulation illustrates that the localization accuracy of the proposed scheme is maintained, and the scheme can save large amount of energy. So it is a practical localization scheme.
同期刊论文项目
同项目期刊论文
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