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http://dx.doi.org/10.5762/KAIS.2011.12.11.5208

An Accurate Direction Finding Technology Using a Phase Comparison and Time Difference of Arrival  

Lim, Joong-Soo (Division of Information Communication, Baekseok University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.12, no.11, 2011 , pp. 5208-5213 More about this Journal
Abstract
In this paper, we proposed a new direction finding(DF) technology using TDOA(time-difference of arrival) and PDOA(phase difference of arriving signal) method. The proposed technology has a good DF accuracy without DF ambiguity. TDOA or PDOA technology is used to the most of intelligence systems in 21 century. The principle of TDOA is to receive a signal with two parallel antennas, measure the time difference of arrival signal, and converse the time difference to the direction of incident signal. Those technology make a DF system small size but the DF accuracy is low into short antenna installation distance. The principle of PDOA is similar to TDOA except measuring the phase difference of arrival signal, These technology get a good DF accuracy in short antenna installation distance but have a DF ambiguity. The proposed DF method is simulated into DF system operation environment with noise, and has a good DF accuracy.
Keywords
Direction finding; TDOA; PDOA; Time Resolution; ELINT; Antenna;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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