Research of smart antennas DOA estimation based on wavelet transformer

doi:10.3969/j.issn.1000-5641.2016.06.018

Abstract

Abstract:

Having compared two classic smart antenna DOA (Direction of Arrival, DOA) estimation algorithm—delay-sum algorithm, multiple signal classification (MUSIC) algorithm, smart antennas direction of arrival estimation based on wavelet transformer (SADOAWT) algorithm has been proposed. Taking into account the computational complexity and convergence rate, the algorithm converts signal into multiple scales domain, while different frequency domain would use different algorithms. Simulation results show that the computational complexity of new algorithm is low. SADOAWT overcomes the disadvantages of delay-sum algorithm which has low resolution and many sidelobes, it also avoids the problem that resolution of MUSIC algorithm gets reduced while correlated signal coming.

Key words: DOA estimation, delay-sum algorithm, MUSIC, wavelet

LI Na, YIN Xing-hui, GAO Wen-yun. Research of smart antennas DOA estimation based on wavelet transformer[J]. Journal of East China Normal University(Natural Sc, doi: 10.3969/j.issn.1000-5641.2016.06.018.

References

[ 1 ] GAO W, HUANG J, HAN J. Multi-channel differencing adaptive noise cancellation with multi-kernel method [J]. Journal of Systems Engineering and Electronics, 2015, 3: 421-430.
[ 2 ] XU L Y, ZHANG X F, YU M. Fast multi-parameter estimation and localization for MIMO radar [J]. Journal of Systems Engineering and Electronics, 2015, 3: 486-492.
[ 3 ] YANG P, LIU Z, JIANG W L. Improved sparse Bayesian learning method for direction-of-arrival estimation in non-uniform noise[J]. Journal of Electromagnetic Waves and Applications, 2014, 285.
[ 4 ] 郭艺夺, 张永顺, 童宁宁, 等. 一种MIMO雷达二维DOA估计新方法[J].电波科学学报, 2010(4): 668-673.
[ 5 ] ZHAO G H, LIN J, SHEN F F, et al. High-resolution DOA estimation with meridian prior [J]. Journal on Advances in Signal Processing, 2013, 1: 1-8.
[ 6 ] LEE J, CHONG U. Performance of transform-domain LMS adpative digital filters [J]. IEEE Trans on ASSP, 1986, 34(3): 499-510.
[ 7 ] 林华芳, 徐明远, 徐晟. 均匀直线阵的波达方向估计[J].云南大学学报(自然科学版), 2003, 4: 317-320.
[ 8 ] WIDROW B, MANTEY P E, GRIFFITHS L J, et al. Adaptive antenna systems [J]. Proceedings of the IEEE, 1967, 55: 2143-2159.
[ 9 ] KUMARESAN R, TURTS D W. Estimating the angles of arrival of multiple plane waves [J]. IEEE Transaction on Aerospace and Electronic Systems, 1983, 19(l): 134-139.
[10] GODARA L C. Application of antenna arrays to mobile communications, Part II: Beam-Forming and direction-of arrival considerations [J]. Proceedings of the IEEE, 1991, 85: 1195-1245.
[11] 姚李威. 基于小波域的智能天线波束形成算法的研究[D].太原:太原理工大学, 2006.
[12] 赵伟, 邱隆伟, 姜在兴, 等.小波分析在高精度层序单元划分中的应用[J].中国石油大学学报(自然科学版), 2009(2): 18-22.
[13] LITVA J, LO T K. Digital beamforming in wireless communications [M]. Norood, MA, USA: Artech House Publishers, 1996.

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