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http://dx.doi.org/10.15207/JKCS.2017.8.1.001

Data Convergence of circular Array Correlative Interferometer Direction Finding with 7-Antenna  

Lim, Joong-Soo (Division of Information & Communication Eng., Baekseok University)
Publication Information
Journal of the Korea Convergence Society / v.8, no.1, 2017 , pp. 1-6 More about this Journal
Abstract
In this paper, we propose a new method for a correlative phase comparison direction finding(DF) which detects the arrival direction of radio waves by data fusing the calculated phase difference and the measured phase difference between the antennas when the radio waves are incident on the circular array antenna composed of 7 antennas respectively. The correlation type phase comparison method uses a uniform circular array(UCA) and a linear array method. The phase difference data calculated formally and the phase difference data measured in the test environment are fused with a correlation function, therefore, it is superior to the currently used phase comparison direction detection method. When the signal-to-noise ratio (SNR) of the received signal is 20dB and the inter-antenna distance to the wavelength of the received signal($L/{\lambda}$) is 0.5, the accuracy of the correlative DF is $1.7^{\circ}$ while measurement phase comparison's is larger than $2.5^{\circ}$, It can be used for electromagnetic signal monitoring and military direction detection.
Keywords
Direction finding; Interferometer; Correlative; Phase; Amplitude;
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Times Cited By KSCI : 5  (Citation Analysis)
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