Abstract
The array mutual coupling, gain-phase errors and sensor position errors would significantly degrade the performance of high-resolution direction of arrival (DOA) estimation algorithms. Aiming at the combined influences of the above three array errors, a kind of active calibration algorithm is presented with the help of instrumental sensors in this paper. Firstly, the integrated effects of the three array errors are shown to be equivalent to angularly dependent gain-phase errors. Then, a non-linear least square (LS) optimization model for the three array errors is established through an auto-calibration algorithm using auxiliary sensors, and the corresponding resolving algorithms of the LS optimization problem are given according to the different models of array errors matrix. Next, the parameter estimation uniqueness of the proposed algorithms is analyzed in detail and an improvement strategy is given. Finally, the effectiveness of the novel algorithm is validated by simulations.
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References
Friedlander B, Weiss A J. Direction finding in the presence of mutual coupling. IEEE Trans Antenn Propag, 1991, 39: 273–284
Wijnholds S J, Veen A J. Multisource self-calibration for sensor arrays. IEEE Trans Signal Process, 2009, 57: 3512–3522
Sellone F, Serra A. A novel mutual coupling compensation algorithm for uniform and linear arrays. IEEE Trans Signal Process, 2007, 55: 560–573
Li Y M, Wang R D, Wen H F. Perturbation analysis of gain and phase error calibration for uniform linear array with optimal algorithms (in Chinese). J Electron Inf Technol, 2007, 29: 1653–1656
Lin M, Yang L. Blind calibration and DOA estimation with uniform circular arrays in the presence of mutual coupling. IEEE Antenn Wireless Propag Lett, 2006, 5: 315–318
Ye Z F, Dai J S, Xu X, et al. DOA estimation for uniform linear array with mutual coupling. IEEE Trans Aerospace Electron Syst, 2009, 45: 280–288
Wang B H, Wang Y L, Chen H. Robust DOA estimation and mutual coupling self-calibration algorithm for (in Chinese). Sci China Ser E-Tech Sci, 2004, 34: 229–235
Ng B C, See C M S. Sensor array calibration using a maximum-likelihood approach. IEEE Trans Antenn Propag, 1996, 44: 827–835
Jaffer A G. Constrained mutual coupling estimation for array calibration. In: Proceeding of the 35th Asilomar Conference on Signal, Systems and Computers, Pacific Grove, USA, 2001. 1273–1277
Jia Y K, Bao Z, Wu H. A new calibration technique with signal sources for position, gain and phase uncertainty of sensor array (in Chinese). Acta Electron Sin, 1996, 24: 47–52
See C M S, Poth B K. Parametric sensor array calibration using measured steering vectors of uncertain locations. IEEE Trans Signal Process, 1999, 47: 1133–1137
Wang D, Wu Y. Array errors active calibration algorithm and its improvement (in Chinese). Sci China Inf Sci, 2010, 53: 1016–1033
Weiss A J, Friedlander B. DOA and steering vector estimation using a partially calibrated array. IEEE Trans Aerospace Electron Syst, 1996, 32: l047–l057
Li M H, Lu Y L. Maximum likelihood processing for arrays with partially unknown sensor gains and phases. In: Proceedings of the 7th International Conference on ITS Telecommunications, Sophia Antipolis, France, 2007. 1–6
Liao B, Liao G S. Method for array gain and phase uncertainties calibration based on ISM and ESPRIT (in Chinese). J Syst Engineer Electron, 2009, 20: 223–228
Wang B H, Wang Y L, Chen H, et al. Array calibration of angularly dependent gain and phase uncertainties with carry-on instrumental sensors (in Chinese). Sci China Ser E-Inf Sci, 2004, 34: 906–918
Wang B H, Wang Y L, Guo Y. Mutual coupling calibration with instrumental sensors. Electron Lett, 2004, 40: 373–374
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Wang, D., Wu, Y. Array errors active calibration algorithm based on instrumental sensors. Sci. China Inf. Sci. 54, 1500–1511 (2011). https://doi.org/10.1007/s11432-011-4233-8
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DOI: https://doi.org/10.1007/s11432-011-4233-8