Reduction Processing of the Position Estimation Error Using Transmitted Directivity Information

Hiroyuki HATANO  Tomoharu MIZUTANI  Yoshihiko KUWAHARA  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E95-A   No.1   pp.286-295
Publication Date: 2012/01/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E95.A.286
Print ISSN: 0916-8508
Type of Manuscript: Special Section PAPER (Special Section on Intelligent Transport Systems)
Category: ITS
position estimation,  localization,  radar network,  sensor network,  directivity,  

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We consider the position estimation system for targets which exist in near wide area. The system has multiple sensors and estimates the position with multiple receivers. In the past, if receivers were arranged on a straight line, the large position error in the same direction of the line is generated. In order to reduce the error, we propose a novel estimation algorithm using transmitter's directivity information. Our system use directional emission made by an array of antennas in a transmitter. In this paper, the error characteristic which should be solved is introduced firstly. After that, our algorithm is presented. Finally the performance of the error reduction is shown by computer simulations. And we also confirm the reduction by experimental trials. The results indicate good reduction of the error.