1. 贵州大学 现代制造技术教育部重点实验室 机构,贵州,贵阳,550025
2. 中国海洋大学 管理学院,山东,青岛,266100
3. 青岛大学 机构 机电工程学院,山东,青岛,266071
纸质出版:2017
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卞国龙, 黄海松, 葛至峥, 刘培晨. 无线传感器网络定位技术的优化处理[J]. 微电子学与计算机, 2017, 34(4): 49-54.
BIAN Guo-long, HUANG Hai-song, GE Zhi-zheng, et al. Optimized Wireless Sensor Network Positioning Technology[J]. 2017, 34(4): 49-54.
无线网络节点定位技术给人员提供了安全保障
在研究传统无线定位的基础上
同时针对现有的基于神经网络定位算法的精度不高等问题
提出了一种新型的基于PSO-BP网络的定位算法.为了提高系统精度首先采用卡尔曼算法进行滤波处理
然后通过一种PSO-BP算法对BP网络初始权值和阈值进行优化
并对比现有的RSSI算法
分析不同算法的性能.BP神经网络权值的修正依赖于非线性梯度值
易形成局部极小值
同时学习次数较多.实验证明
改进的PSO-BP算法在误差反传调整权值的基础上
采用改进的PSO算法的学习机制修正权值
增加了BP算法收敛速度和全局收敛性
提高了BP网络的学习能力.
On the basis of research on traditional wireless location
while not high for the existing positioning accuracy of neural network algorithm
we propose a new type of location-based algorithm PSO-BP network. In order to improve the accuracy of the system first Kalman filtering algorithm
and then by means of a PSO-BP algorithm BP initial weights and thresholds to optimize and compare existing RSSI algorithm to analyze the performance of different algorithms. Fixed BP neural network weights depends on the non-linear gradient value
easy to form a local minimum
while learning more frequently. Experimental results show that the improved PSO-BP algorithm based on the error back propagation adjustment weights on the use of learning mechanism correction weights improved PSO algorithm
an increase of BP algorithm convergence speed and global convergence
improved BP network learning ability.
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Hara S, Anzai D, Yabu T. A perturbation analysis on the performance of TOA and TDOA localization in mixed LOS/NLOS environments[J]. IEEE transactions on communications, 2013, 61(2): 679-689 DOI: 679
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郑学理, 付敬奇. 基于PDR和RSSI的室内定位算法研究[J]. 仪器仪表学报, 2015, 35(5): 1177-1185. DOI: 1177
Gao Y, Huang K D, Jiang N Y. An exponential rayleigh model for RSS-based device-free localization and tracking[J]. IEEE transactions on mobile computing, 2015, 3(15): 484-494. DOI: 484
刘政. 基于自适应分群粒子群进化的节点定位算法[J]. 微电子学与计算机, 2015, 32(9): 128-132. DOI: 128
叶苗, 程小辉, 邓昀. 基于μ+λ进化计算的传感器网络定位算法[J]. 微电子学与计算机, 2013, 30(2): 9-12. DOI: 9
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