全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

一种基于RBF神经网络辅助的直接定位新方法

, PP. 79-83

Keywords: 直接定位,RBF神经网络,接收信号强度

Full-Text   Cite this paper   Add to My Lib

Abstract:

针对现有直接定位DPD方法在建模时忽略了基站到定位中心的信道影响问题,提出以移动台为定位中心直接解算基站回传信号中包含的位置信息的方法.该方法事先将整个区域划分成若干个规则小区,在信号回传时利用RBF神经网络建立接收信号强度与位置之间的映射关系,先判定移动台所处小区的标号,然后在此小区内进行直接定位搜索,可以大大节省搜索时间.仿真结果表明,该方法的定位精度优于传统DPD定位方法,在低信噪比时,改善尤其明显.

References

[1]  范平志,邓平,刘林. 蜂窝网无线定位[M]. 北京: 电子工业出版社,2002. Fan Zhiping,Deng Ping,Liu Lin. Cellular Wireless Location[M]. Beijing: Electronics Industry Press, 2002. ( in Chinese)
[2]  Sayed Ali H,Tarighat Alireza,Khajehnouri Nima. Network-based wireless location: challenges faced in developing techniques for accurate wireless location information[J]. IEEE Signal Processing Magazine, 2005,22( 4) : 24-40.
[3]  Gezici S. A survey on wireless position estimation[J]. Wireless Personal Communications, 2008, 44( 3) : 263-282.
[4]  Chan Y T,Ho K C. A simple and efficient estimator for hyperbolic location[J]. IEEE Transactions on Signal Processing, 1994, 42( 8) : 1 905-1 915.
[5]  Oispuu M,Nickel U. Direct detection and position determination of multiple sources with intermittent emission[J]. Signal Processing, 2010, 90( 12) : 3 056-3 064.
[6]  Weiss A J. Direct position determination of narrowband radio frequency transmitters[J]. IEEE Signal Processing Letters, 2004,11( 5) : 513-516.
[7]  樊昌信,曹丽娜. 通信原理[M]. 北京: 国防工业出版社,2005. Fan Changxin,Cao Lina. Communication Theory[M]. Beijing: National Defense Industry Press,2005. ( in Chinese)
[8]  李莉,肖丽华,王华芝. 天线方向性对MIMO 系统信道容量影响[J]. 北京邮电大学学报: 自然科学版, 2008,31( 6) : 117-120. Li Li,Xiao Lihua,Wang Huazhi. Effect of antenna directivity on the channel capacity of MIMO systems[J]. Journal of Beijing University of Posts and Telecommunications: Natural Science Edition,2008,31( 6) : 117-120. ( in Chinese)
[9]  Takenga Claude,Chen Xi,Kyandoghere Kyamakya. A hybrid neural network-data base correlation positioning in GSM network [C]/ /10th IEEE Singapore International Conference on Communication systems ( ICCS 2006) . Singapore: IEEE Press, 2006: 1-5.
[10]  Mao K Z,Huang Guangbin. Neuron selection for RBF neural network classifier based on data structure preserving criterion [J]. IEEE Transactions on Neural Networks,2005,16( 6) : 1531-1540.
[11]  Xu Jun,Shen Xuemin,Mark Jon W,et al. Mobile location estimation for DS-CDMA systems using self-organizing maps[J]. Wireless Communications and Mobile Computing,2007,7: 285-298.
[12]  闻新,周露,李翔,等. MATLAB 神经网络仿真与应用[M]. 北京: 科学出版社, 2003. Wen Xin,Zhou Lu,Li Xiang,et al. Neural Network Simulation and Application Using MATLAB[M]. Beijing: Science Press,2003.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133