摘要
基于信号接收强度指示(RSSI)的定位技术是一项低成本和低复杂度的定位技术,被广泛应用于无线传感网络定位系统中。在基于高斯模型的基础上提出一种基于改进高斯模型的滤波算法。分为σ规则和高斯滤波算法求解置信区间。结合交点质心求解法,得出一种新的距离估计方法。实验表明,对改进高斯滤波模型结合交点质心求解法的性能进行评估,证明WSN能够准确定位并具有较高的定位精度和稳定性。
The localization technology based on Received Signal Strength Indication（ RSSI） is a low-cost and low-complexity localization technology widely used in wireless sensor network localization systems. Based on the Gaussian model,this paper presents a filtering algorithm based on improved Gaussian model,which is divided into two domains： the σ rule and the Gaussian filtering algorithm solution. A new distance estimation method is obtained by means of the intersection centroid solution. Experimental results show that,on the basis of the improved Gaussian filtering model and the intersection centroid solution,WSN using the presented algorithm can achieve accurate and stable localization.
出处
《电气自动化》
2014年第3期31-33,53,共4页
Electrical Automation
