Abstract
In this paper, a reduced-dimension based direction of arrival (DOA) and direction of departure (DOD) estimator with real-valued implementation is presented by introducing a preprocessing transformation for bistatic multiple-input multiple-output radars is addressed. First, a two-dimensional searching estimator by exploiting unitary multiple signal classification (UMUSIC) technique with automatic pairing is presented. Second, this paper also presents a reduced-dimension (RD) UMUSIC (RD-UMUSIC) estimator by utilizing the characteristic of Kronecker product, which only requires a one-dimensional search for DOA estimation. Following this, the angle of DOD corresponding to the estimated DOA is obtained by using a shaping DOD steering vector approach. Furthermore, the DOA and DOD pairing is given automatically. The proposed estimator has low computational complexity due to the preprocessing unitary transformation and RD approaches. Finally, simulation results are presented to verify the efficiency of the proposed estimator.
Similar content being viewed by others
References
Fishler, E., Haimovich, A., Blum, R., Chizhik, D., Cimini, L., & Valenzuela, R. (2004). MIMO radar: An idea whose time has come, In Proceedings of the IEEE Radar Conference (pp. 71–78, 26–29).
Yan, H. D., Li, J., & Liao, G. S. (2008) Multitarget identification and localization using bistatic MIMO radar systems. EURASIP Journal of Advance Signal Processing.
Bencheikh, M. L., Wang, Y., & He, H. (2010). Polynomial root finding technique for joint DOA DOD estimation in bistatic MIMO radar. Signal Processing, 90(9), 2723–2730.
Zhang, X., & Xu, D. (2013). Angle estimation in bistatic MIMO radar using improved reduced dimension Capon algorithm. The Journal of Systems Engineering and Electronics, 24(1), 84–89.
Zhang, X., Xu, L., Xu, L., & Xu, D. (2010). Direction of departure (DOD) and direction of arrival (DOA) estimation in MIMO radar with reduced-dimension MUSIC. IEEE Communication Letters, 14(12), 1161–1163.
Pesavento, M., Gershman, A. B., & Haardt, M. (2000). Unitary root-MUSIC with a real-valued eigendecomposition: A theoretical and experimental performance study. IEEE Transaction on Signal Processing, 48(5), 1306–1314.
Golub, G. H., & Van Loan, C. H. (1996). Matrix computations. Baltimore: The Johns Hopkins University Press.
Acknowledgments
The author would like to thank the anonymous reviewers for their valuable and constructive comments, which helped to improve the presentation of the paper. This research was supported by the Ministry of Science and Technology under grant number MOST 103-2221-E-275-002.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Chang, AC. Reduced-Dimension DOA and DOD Estimation with Real-Valued Implementation for Bistatic MIMO Radars. Wireless Pers Commun 85, 1061–1070 (2015). https://doi.org/10.1007/s11277-015-2825-0
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11277-015-2825-0