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http://dx.doi.org/10.5370/KIEE.2015.64.3.445

TDOA Based Moving Target Velocity Estimation in Sensor Network  

Kim, Yong Hwi (Dept. of Electrical and Electronic Engineering, Yonsei University)
Park, Min Soo (Dept. of Electrical Engineering, Changwon National University)
Park, Jin Bae (Dept. of Electrical and Electronic Engineering, Yonsei University)
Yoon, Tae Sung (Dept. of Electrical Engineering, Changwon National University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.64, no.3, 2015 , pp. 445-450 More about this Journal
Abstract
In the moving target problem, the velocity information of the moving target is very important as well as the high accuracy position information. To solve this problem, active researches are being conducted recently with combine the Time Difference of Arrival (TDOA) and Frequency Delay of Arrival(FDOA) measurements. However, since the FDOA measurement is utilizing the Doppler effect due to the relative velocity between the target source and the receiver sensor, it may be difficult to use the FDOA measurement if the moving target speed is not sufficiently fast. In this paper, we propose a method for estimating the position and the velocities of the target by using only the TDOA measurements for the low speed moving target in the indoor environment with sensor network. First, the target position and heading angle are obtained from the estimated positions of two attached transmitters on the target. Then, the target angular and linear velocities are also estimated. In addtion, we apply the Instrumental Variable (IV) technique to compensate the estimation error of the estimated target velocity. In simulation, the performance of the proposed algorithm is verified.
Keywords
TDOA; FDOA; Moving Target Localization; Sensor Network; Least Squares; IV method;
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Times Cited By KSCI : 1  (Citation Analysis)
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