Hidden Markov Model Based Localization Using Array Antenna
Hidden Markov Model Based Localization Using Array Antenna
复制标题
基于隐马尔可夫模型的阵列天线定位
DOI:
10.1007/s10776-013-0211-y
复制
发表时间:
2013
影响因子:
2.5
通讯作者:
and T. Ohtsuki
中科院分区:
文献类型:
--
作者:
Y. Inatomi;J. Hong; and T. Ohtsuki
We present a hidden Markov model (HMM) based localization using array antenna. In this method, we use the eigenvector spanning signal subspace as a location dependent feature. The eigenvector does not depend on received signal strength but on direction of arrival of incident signals. As a result, the eigenvector is robust to fading and noise. In addition, the eigenvector is unique to the environment of propagation due to indoor reflection and diffraction of the radio wave. The conventional localization method based on fingerprinting does not take previous information into account. In our proposal algorithm with HMM, we take previous state of estimation into account by comparing the eigenvector obtained during observation with the one stored in the database. The database has the eigenvector obtained at each reference point according to setting in advance. In an indoor environment represented in a quantized grid, we design the transition probability due to previous estimated position. Because of this, target’s movable range is obtained. In addition, we use maximum likelihood estimation method based on statics of correlation values. The correlation value is an indicator of pattern matching in a fingerprinting method. The most likely trajectory is calculated by Viterbi algorithm with above mentioned probabilities. The experimental results show that the localization accuracy is improved owing to the use of HMM.
登录
查看更多内容
DOI:
10.1109/vetecs.2005.1543863
发表时间:
2005
期刊:
2005 IEEE 61st Vehicular Technology Conference
影响因子:
--
作者:
Chin;Yih;Sheng
通讯作者:
Sheng
DOI:
10.1109/pimrc.2009.5450337
发表时间:
2009
期刊:
2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications
影响因子:
--
作者:
Y. Nijsure;Yifan Chen;C. Litchfield;P. Rapajic
通讯作者:
P. Rapajic
DOI:
10.1109/pimrc.2011.6139913
发表时间:
2011
期刊:
2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications
影响因子:
--
作者:
Jihoon Hong;T. Ohtsuki
通讯作者:
T. Ohtsuki
DOI:
10.1109/vetecf.2008.46
发表时间:
2008
期刊:
2008 IEEE 68th Vehicular Technology Conference
影响因子:
--
作者:
S. Ikeda;H. Tsuji;T. Ohtsuki
通讯作者:
T. Ohtsuki
DOI:
10.1109/acssc.1995.540804
发表时间:
1995
期刊:
Conference Record of The Twenty-Ninth Asilomar Conference on Signals, Systems and Computers
影响因子:
--
作者:
S. Jeng;G. Xu;H. Lin;W. Vogel
通讯作者:
W. Vogel