Browse > Article
http://dx.doi.org/10.6109/jkiice.2018.22.8.1076

Performance Analysis on Digital Phase Difference Measurement Techniques for Interferometer Direction Finder  

Kang, Jong-jin (Electronic Warfare R&D Center, Hanwha Systems)
Park, Sung-kyun (Electronic Warfare R&D Center, Hanwha Systems)
Roh, Ji-hyun (Electronic Warfare R&D Center, Hanwha Systems)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.22, no.8, 2018 , pp. 1076-1082 More about this Journal
Abstract
This paper describes interferometer direction finder which measures the angle of arrival based on calculation of the phase difference of received radio signal from different antennas. Modern Electronic Warfare direction finder uses digital phase difference measuring techniques which have less effect on temperature variation and better performance under low Signal to Noise Ratio environment. In this paper, we analyze acceptable phase difference error for requirement of system's direction finding accuracy and introduce digital phase difference calculation techniques. We have investigated quantitative analysis on phase difference calculation according to sample number, SNR, interference injection. Through the simulation, frequency domain measurement technique is better performance than the time domain one at the environment of low SNR and interference injection. Proposed method can be used to determine the performance of interferometer direction finder.
Keywords
Digital phase difference measurement; Direction finding; Electronic warfare; Interferometer;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 R. G. Wiley, ELINT The Interception and Analysis of Radar Signals, Artech House, pp. 131-139, 2006.
2 D. L. Adamy, EW102 A Second Course in Electronic Warfare, Artech House, pp. 162-163, 2004.
3 B. J. Park, J. H. Lee and K. S. Lee, "A VHF Band 4 Channel Phase Discriminator," The Journal of Korean Institute of Electromagnetic Engineering and Science, vol. 25, no. 9, pp. 912-918, Sep. 2014.   DOI
4 Y. H. Kim, J. S. Lim, G. S. Chae and K. Kim, "An investigation of the Azimuth Error for Correlative Interferometer Direction Finding," Journal of the Korea Convergence Society, vol. 6, no. 5, pp. 249-255, Jun. 2015.   DOI
5 J. S. Lim and G. S. Chae, "Analysis of Direction Finding Accuracy for Amplitude-Phase Comparison and Correlative Interferometer Method," Journal of Digital convergence, vol. 14, no. 1, pp. 195-201, Jan. 2016.   DOI
6 M. H. Chae, "Accuracy Analysis of 2-D Direction Finding Based on Phase Comparison," The Journal of Korean Institute of Electromagnetic Engineering and Science, vol. 28, no. 8, pp. 653-660, Aug. 2017.   DOI
7 J. H. Lee and J. M. Woo, "The Direction Finding Ambiguity Analysis for 3 Element and 4 Element Phase Interferometer DF System," Journal of the Korea Institute of Military Science and Technology, vol. 17, no. 4, pp. 544-550, Aug. 2014.   DOI
8 J. Duprat and J. M. Muller, "The CORDIC algorithm : New Results for Fast VLSI Implementation," IEEE Transactions on Computers, vol. 42, no. 2, pp. 168-178, 1993.   DOI
9 B. Hua, Z. Jianjiang, G. Zhixiong, C. Jianhua and X. Weijie "Digital Phase Detecting Based on Hilbert Transform and Its DSP Implementation," Nanjing University of Aeronautics and Astronautics, Technical Report, 2011.
10 A. V. Oppenheim, R. W. Schafer and J. R. Buck, Discrete-Time Signal Processing, 2th ed. New Jersery, NJ: Prentice Hall, pp. 629-692, 1999.