| 基于RSSI&DFP的无线传感器网络声源目标定位算法 |
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| 引用本文： | 刘立阳,张金成,吴中林,倪鹏.基于RSSI&DFP的无线传感器网络声源目标定位算法[J].传感技术学报,2011,24(10):1464-1468. |
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| 作者姓名： | 刘立阳 张金成 吴中林 倪鹏 |
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| 作者单位： | 空军工程大学导弹学院; |
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| 摘 要： | 声源目标定位是无线传感器网络应用研究的一个重要问题,如何在传感器节点随机分布的条件下对目标进行快速定位,并保证较高的定位精度是定位问题的一个难点,基于二维空间中声音信号传播时的能量强度指示( RSSI)将声源目标的定位问题转化为似然函数的最优化问题,利用最优化理论中的DFP方法求出目标位置的全局最优解.仿真结果表明,算...
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| 关 键 词： | 无线传感器网络 目标定位 能量强度指示 能量衰减模型 DFP方法 |
Acoustic Target Location Based on RSSI and DFP in WSN |
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| LIU Liyang,ZHANG Jincheng,WU Zhonglin,NI Peng.Acoustic Target Location Based on RSSI and DFP in WSN[J].Journal of Transduction Technology,2011,24(10):1464-1468. |
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| Authors: | LIU Liyang ZHANG Jincheng WU Zhonglin NI Peng |
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| Affiliation: | LIU Liyang,ZHANG Jincheng,WU Zhonglin,NI Peng(AFEU,Missile Institute,Sanyuan Shanxi 713800,China) |
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| Abstract: | Acoustic target location is an important problem in application study of WSN.It is difficult to make a quick target location with high location accuracy under the condition that the sensor notes are random distributed.The article converts acoustic target location problem into optimization of likelihood function based on RSSI of acoustic signal in two-dimension space.Then,it makes out the global optimum solution using DFP method in optimization theory.The emulation result shows that the method meets the need... |
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| Keywords: | wireless sensor network target location received signal strength indicator energy attenuation model DFP method |
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