基于RSSI的无线层析成像方法
Radio Tomographic Imaging Method Based on Received Signal Strength Indicator
研究利用无线层析成像方法定位位于由传感器网络构成的区域中的目标。由于目标的遮挡而造成的阴影衰落使某些节点之间链路的RSSI剧烈变化，据此建立了RSSI的变化和区域内每个像素阴影衰落的线性模型；给出了线性模型的最小均方误差解；搭建了一个由无线传感器网络构成的实验平台来验证方法的有效性。实验结果表明，当用16个节点覆盖4.8m*4.8m大小的区域时，该算法对单个目标的平均定位误差仅为0.097m。
Using radio tomographic imaging method to locate the target in the area consisting by wireless sensor network is presented. Some links between nodes experience dramatic change because of shadowing loss caused by target's obstruction. Therefore, this paper illustrates a linear model relating the change of RSSI to the attenuation within each pixel; gives the minimum mean square error solution for the model; establishes a experimental platform with wireless sensor network to evaluate the effectiveness of the method . The experimental results show that the average location error of the algorithm for a single target is only 0.097m when using 16 nodes covering the area with size of 4.8m * 4.8m.
卜祥元、刘珩、安建平、王正欢
无线通信通信无线电设备、电信设备
信号与信息处理无线层析成像无线传感器网络阴影衰落RSSIMMSE
signal and information processingradio tomographic imagingwireless sensor networkshadowing lossRSSIMMSE
卜祥元,刘珩,安建平,王正欢.基于RSSI的无线层析成像方法[EB/OL].(2012-03-02)[2025-08-11].http://www.paper.edu.cn/releasepaper/content/201203-99.点此复制
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