Journal of Positioning, Navigation, and Timing (J Position Navig Timing; JPNT)
Citation: Park, H.-S., Kim, H., & Hwang, S.-S., 2023, Signal Number Estimation Algorithm Based on Uniform Circular Array Antenna, Journal of Positioning, Navigation, and Timing, 12, 43-49.
Journal of Positioning, Navigation, and Timing (J Position Navig Timing) 2023 March, Volume 12, Issue 1, pages 43-49. https://doi.org/10.11003/JPNT.2023.12.1.43
Received on 10 February 2023, Revised on 24 February 2023, Accepted on 27 February 2023, Published on 30 March 2023.
License: Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/bync/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Heui-Seon Park1, Hongrae Kim2, Suk-seung Hwang3†
1Interdisciplinary Program in IT-Bio Convergence System, Department of Electronic Engineering, Chosun University, Gwangju 61452, Korea
2Soletop Co., Ltd, Daejeon 34051, Korea
3Interdisciplinary Program in IT-Bio Convergence System, School of Electronic Engineering, Chosun University, Gwangju 61452, Korea
†Corresponding Author: E-mail, hwangss@chosun.ac.kr; Tel: +82-62-230-7741 Fax: +82-62-230-6596
In modern wireless communication systems including beamformers or location-based services (LBS), which employ multiple antenna elements, estimating the number of signals is essential for accurately determining the quality of the communication service. Representative signal number estimation algorithms including the Akaike information criterion (AIC) and minimum description length (MDL) algorithms, which are information theoretical criterion models, determine the number of signals based on a reference value that minimizes each criterion. In general, increasing the number of elements mounted onto the array antenna enhances the performance of estimating the number of signals; however, it increases the computational complexity of the estimation algorithm. In addition, various configurations of array antennas for the increased number of antenna elements should be considered to efficiently utilize them in a limited location. In this paper, we introduce an efficient signal number estimation algorithm based on the beamspace based AIC and MDL techniques that reduce the computational complexity by reducing the dimension of a uniform circular array antenna. Since this algorithm is based on a uniform circular array antenna, it presents the advantages of a circular array antenna. The performance of the proposed signal number estimation algorithm is evaluated through computer simulation examples.
signal number estimation, beamspace, AIC, MDL, uniform circular array antenna
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Conceptualization, H. S. Park., H. R. Kim. and S. Hwang.; methodology, H. S. Park., H. R. Kim. and S. Hwang.; software, H. S. Park.; validation, H. S. Park.; formal analysis, H. S. Park.; investigation, H. S. Park. and S. Hwang.; writing—original draft preparation, H. S. Park.; writing— review and editing, S. Hwang.; supervision; S. Hwang.
The authors declare no conflict of interest.