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http://dx.doi.org/10.17661/jkiiect.2021.14.1.7

Phase Error Decrease Method for Target Direction Detection Improvement  

Lee, Min-Soo (Division of Human IT Convergency, Daejin University)
Publication Information
The Journal of Korea Institute of Information, Electronics, and Communication Technology / v.14, no.1, 2021 , pp. 7-13 More about this Journal
Abstract
This paper proposes a method to minimize the target's direction detection error using RADAR. The radar system cannot accurately detect the target direction due to the phase error of he received signal. The proposed method of this study obtains a phase by applying an root mean square to each antenna incident signal, and reduces the phase error by using an optimal signal to noise ratio. In the simulation result, the probability of detecting the target direction is the best when the antenna spacing is half wavelength. The conventional method of direction detection probability 10-1.7 and the proposed method is 10-3.3. The target detection direction of the existing method represents [-8°,8°] with an error of 2 degrees. The target detection direction of the proposed method is shown in [-10°,10°], and all target directions are accurately detected. In the future, There is need for a method to reduce the phase error even though the resolution decrease.
Keywords
Array antenna; Phase error; RMS; SNR; Target direction detection;
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  • Reference
1 Oh Hyun Su, Park Cheol sun, and Chang Lae Kyu, "Study on Monopulse Direction Detection Using Digital Beamforming", KiCS, Vol.45, No.5, pp.875-881, 2020.   DOI
2 Kong Young Joo, Woo Seon Keol, Park Sung Ho, Ryu Seong Hyun, and Kang Yeong Duk, "Separation of Adjacent Target using Range-Doppler Clustering Method", JIIBC, Vol.20, No.2, pp.63-73, 2020.
3 Jang Sung Hoon and Kim Seon Joo, "Radar Countermeasure and Effect Analysis for he Pull-Off Deceptive Jamming signal", Journal of the KIMST, Vol.23, No.3, pp.221-228, 2020.   DOI
4 Chuk Davis, "Enhancing the accuracy of Direction-Finding EW System", MSN&CT, pp.52-64, Vol.9, 19898.
5 A.R. Baron, "Passive Direction Finding and Signal Location", Microwave Journal, Vol. 9, pp.59-79, 1982.
6 Willian M.Sherrill, "Bearing Ambiguity and Resolution in Interference Direction Finders", IEEE Trans on Aerospace and Electronic Systems, Vol.5, No.6, pp.959-966, November, 1969.   DOI
7 Kazunari kihira, Toru Fukasawa, and Naofumi Yonda, "Time-Modulated Array Using Phase Shifter for Amplitude-Phase Error compensation," IEEE Conference PAST, March, 2020.
8 K.Chang, S.Johnson, R. Flotz, and R.Castner, "Angle Error Simulation for Phased Array for limited Phased Scan System," IEEE Radar Conference, August 2002.
9 B. Allen and M. Ghavarri, "Adaptive Array System", Wiley, Feb, 2005.
10 Lal Chand Godara "Smart Antennas", CRC press, 2004.
11 S. Unnikrishna Pillai, " Array Signal Processing", Springer-Verlag, 1989.
12 Bassem R and Mahafza, "Radar System Analysis and Design using Matlab," Chapmn&Hall CRC, 2000.