Estimasi Parameter Sistem Radar Multi-Antena dengan Generalized-Likelihood Ratio Test
DOI:
https://doi.org/10.24014/sitekin.v19i1.15257Abstract
Ada dua jenis sistem radar multi-antena yaitu phased-array dan Multiple-input Multiple-Output yang berturut-turut memiliki keunggulan utama yaitu coherent gain tinggi dan waveform diversity tinggi. Satu parameter terpenting untuk menguji kinerja radar-radar tersebut adalah estimasi parameter yang berkaitan pada kemampuan estimasi sudut kedatangan sinyal dan resolusinya. Makalah ini mengusulkan perluasan estimasi parameter yaitu Generalized-Likelihood Ratio Test yang dimanfaatkan selama ini pada analisa spektrum sinyal. Formulasi dan evaluasi kinerja estimator ini diuji mempertimbangkan resolusi sudut antar dua target dan jumlah elemen antena di transmitter-receiver. Pendekatan ini memberikan perbaikan resolusi terhadap estimasi sudut kedatangan dari sinyal pantulan target radar yang dikomparasikan dengan estimator konvensional seperti least squares. Resolusi sudut deteksi yang diperoleh untuk estimator ini lebih baik dari estimator least squares, sebagai contoh untuk K = L = 8 maka diperoleh resolusi sudut 3o sedangkan estimator least squares sebesar 5,8o.References
MI. Skolnik, Introduction to Radar Systems, 3rd ed., McGraw-Hill, 2001.
J. Li, and P. Stoica, MIMO Radar Signal Processing, John Wiley & Sons, 2009.
J. Li, P. Stoica, and X. Zheng, “Signal synthesis and receiver design for MIMO radar imaging,” IEEE Transactions on Signal Processing, vol. 56, no. 8, pp. 3959-3968, 2008.
M. Hardiwansyah, S. Tahcfulloh, and G. Hendrantoro, “Parameter identifiability of phased-MIMO radar,” International Conference of Artificial Intelligence and Information Technology, pp. 192-195, 2019.
X. Luzhou, J. Li, and P. Stoica, “Target detection and parameter estimation for MIMO radar systems,” IEEE Transactions on Aerospace and Electronic Systems, vol. 44, no. 3, pp. 927-939, 2008.
S. Tahcfulloh and M. Hardiwansyah, “Parameter estimation and target detection of phased-MIMO radar using Capon estimator,” Jurnal Elektronika dan Telekomunikasi, vol. 20, no. 2, pp. 60-69, 2020.
S. Tahcfulloh and G. Hendrantoro, “FPMIMO: a general MIMO structure with overlapping subarrays for various radar applications,” IEEE Access, vol. 8, pp. 11248-11267, 2020.
C. Gao, H. Zhou, R. Wu, X. Xu, F. Shen, and Z. Guo, “Parameter estimation and multi-pulse target detection of radar MIMO,” IEEE Region 10 Conference, pp. 909-914, 2016.
S. Tahcfulloh, “SMIMO radar: MIMO radar with subarray elements of phased-array antenna,” International Journal of Information Technology and Electrical Engineering, vol. 5, no. 2, pp. 37-44, 2021.
P. Stoica and RL. Moses, Spectral Analysis of Signals, Prentice-Hall, 2005.
Downloads
Published
Issue
Section
License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License
Copyright Notice
An author who publishes in the SITEKIN Journal agrees to the following terms:
- Author retains the copyright and grants the journal the right of first publication of the work simultaneously licensed under the Creative Commons Attribution-ShareAlike 4.0 License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal
- Author is able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book) with the acknowledgement of its initial publication in this journal.
- Author is permitted and encouraged to post his/her work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of the published work (See The Effect of Open Access).
Read more about the Creative Commons Attribution-ShareAlike 4.0 Licence here: https://creativecommons.org/licenses/by-sa/4.0/.
