[1]龚福祥,王庆,张小国.NLOS环境下无线通信网络中的TDOA/AOA混合定位算法[J].东南大学学报(自然科学版),2010,40(5):905-910.[doi:10.3969/j.issn.1001-0505.2010.05.005]
　Gong Fuxiang,Wang Qing,Zhang Xiaoguo.TDOA/AOA hybrid wireless location algorithm in cellular networks with NLOS condition[J].Journal of Southeast University (Natural Science Edition),2010,40(5):905-910.[doi:10.3969/j.issn.1001-0505.2010.05.005]
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NLOS环境下无线通信网络中的TDOA/AOA混合定位算法()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
40
期数:
2010年第5期
页码:
905-910
栏目:
信息与通信工程
出版日期:
2010-09-20

文章信息/Info

Title:
TDOA/AOA hybrid wireless location algorithm in cellular networks with NLOS condition
作者:
龚福祥;  王庆;  张小国
东南大学仪器科学与工程学院, 南京 210096
Author(s):
Gong Fuxiang;  Wang Qing;  Zhang Xiaoguo
School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China
关键词:
非可视距;  到达时间差;  到达角度;  混合无线定位;  最速下降法
Keywords:
none line of sight;  time difference of arrival;  angle of arrival;  hybrid wireless location;  steepest descent algorithm
分类号:
TN929.53
DOI:
10.3969/j.issn.1001-0505.2010.05.005
摘要:
为了提高在NLOS条件下无线定位的精度,采用多种测量值混合定位的方式,提出了一种TDOA/AOA最速下降混合定位算法.该算法以加权残差平方和为目标函数,以最速下降算法为最优化方法.然后,以几何结构的单反射圆盘模型进行仿真,分别利用TDOA/AOA最速下降混合定位算法、TDOA/AOA泰勒级数混合定位算法以及单纯的TDOA泰勒级数经典算法对无线通信网络中不同的定位环境进行了仿真计算.仿真结果表明,当参与定位的基站数目分别为3,4,5,6,7,反射圆盘半径分别为200,300,400,500,600,700m时,与后2种算法相比,TDOA/AOA最速下降混合定位算法的均方差、平均误差及最大误差均较小,即该混合定位算法具有更高的定位精度,且参加定位的基站数目越多,这种优势越明显.
Abstract:
To achieve enough accuracy under complex wireless environment, especially under the NLOS(none line of sight)condition, a hybrid location algorithm based on TDOA(time difference of arrival)and AOA(angle of arrival)is proposed. In this algorithm, the weighted residual sum of squares is defined as the objective function, and the steepest descent method is used as the optimization method. Then, a geometrically based single bounce disk of scatters model is taken as an simulator. And the TDOA/AOA hybrid location algorithm, the TDOA/AOA hybrid Taylor series algorithm and the TDOA Taylor series algorithm are used for calculation in different environments in cellular networks. The simulation results show that when the number of the involved base stations are 3,4,5,6,7, and the radius of the scatter disk are 200,300,400,500,600,700m, respectively, the root mean squared error, the mean error and the maximum error of the TDOA/AOA hybrid location algorithm are smaller than those of the latter two algorithms, indicating that the former algorithm can achieve higher accuracy. The greater the number of the involved base stations is, the more obvious the predominance is.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 龚福祥(1976—),男,博士生; 王庆(联系人),男,博士,教授,博士生导师,wq-seu@seu. edu.cn.
基金项目: “十一五”国家科技支撑计划资助项目(2008BAJ11B01,2008BAJ11B02).
引文格式: 龚福祥,王庆,张小国.NLOS环境下无线通信网络中的TDOA/AOA混合定位算法[J].东南大学学报:自然科学版,2010,40(5):905-910. [doi:10.3969/j.issn.1001-0505.2010.05.005]
更新日期/Last Update: 2010-09-20