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Optimized DOA estimation for an array antenna

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Abstract

Abstract—In this paper, we propose a Direction-of-Arrival (DOA) estimation technique that allows application of the signal subspace method. In the case when interference signals are coherent to the desired signals, the performance of the subspace method is reduced remarkably. As a solution to this problem, the spatial smoothing method has been proposed and applied. With the orthogonal element in the weighted spatial smoothing method being the calculation process to realize the MUSIC method, which is the most frequently used subspace, it becomes more complex. In order to solve this problem, we maximize the performance of DOA estimation by assigning a weight vector, which is directly orthogonal to the signal subspace. In this paper we compare the efficiency of the proposed algorithm with a modified spatial smoothing method via simulation results.

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References

  1. Godara, L. C., Application of Antenna Arrays to Mobile Communications: Part II. Beam-forming and Direction-of-Arrival Considerations, Proc. IEEE, 1997, vol. 85, pp. 1195–1245.

    Article  Google Scholar 

  2. Liberti, J. C. and Rappaport, T. S., Smart Antennas for Wireless Communications IS-95 and Third Generation CDMA Applications, Prentice Hall, 1999.

  3. Rappaport, T. S., Smart Antennas, Adaptive Arrays, Algorithms, and Wireless Position Location: Selected Readings, IEEE, 1998.

  4. Capon J., High-resolution Frequency-Wave Number Spectrum Analysis, Proc. IEEE, 1969, vol. 57, pp. 1408–1418.

    Article  Google Scholar 

  5. Barabell, A.J., Improving the Resolution Performance of the Eigenstructure-based Direction-finding Algorithm, Proc. IEEE Int. Conf. Acoust., 1983, pp. 336–339.

  6. Schmidt, R. O., Multiple Emitter Location and Signal Parameter Estimation, IEEE Trans. Antenna Prop., 1986, vol. 34, pp. 276–280.

    Article  Google Scholar 

  7. Roy, R. and Kailath, T., ESPRIT Estimation of Signal Parameters via Rotational Invariance Techniques, IEEE Trans. Acoust., 1989, vol. 37, pp. 984–995.

    Article  Google Scholar 

  8. Shan, T. J., Max, M., and Kailath, T., On Spatial Smoothing for Direction-of-Arrival Estimation of Coherent Signals, IEEE Trans. Acoust., 1985, vol. 33, pp. 806–811.

    Article  Google Scholar 

  9. Lee, W. C., Park, S. T., Cha, I. W., and Youn, D. H., Adaptive Spatial Domain Forward-Backward Predictors for Bearing Estimation, IEEE Trans. Acoust., 1990, vol. 38, pp. 1105–1109.

    Article  Google Scholar 

  10. Williams, R. W., Prasad, S., and Mahalanabis A. K., An Improved Spatial Smoothing Technique for Bearing Estimation in a Multipath Environment, IEEE Trans. Acoust., 1988, vol. 36, pp. 425–432.

    Article  MATH  Google Scholar 

  11. Wang, B. H., Wang, Y. L., and Chen, H., Weighted Spatial Smoothing for Direction-of-Arrival Estimation of Coherent Signals, IEEE Antennas Prop. Soc. Int. Symp., San Antonio, 2002, vol. 2, pp. 668–671.

    Google Scholar 

  12. Evans, J. E., Johnson, J. R., and Sun, D. F., High-resolution Angular Spectrum Estimation Techniques for Terrain Scattering Analysis and Angle of Arrival Estimation in the ATC Navigation and Surveillance System, MIT Lincoln Lab. Rep., 1982, vol. 582.

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Authors and Affiliations

  1. Korean Agency for Technology and Standards, Gwacheon, 427-716, South Korea

    J. K. Oh

  2. School of Information and Communication Engineering, Sungkyunkwan University, Suwon, 440-746, South Korea

    K. H. You & G. H. Heo

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  1. J. K. Oh
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  2. K. H. You
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  3. G. H. Heo
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Correspondence to J. K. Oh.

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The text was submitted by the authors in English.

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Oh, J.K., You, K.H. & Heo, G.H. Optimized DOA estimation for an array antenna. Aut. Conrol Comp. Sci. 41, 282–288 (2007). https://doi.org/10.3103/S0146411607050070

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  • DOI: https://doi.org/10.3103/S0146411607050070

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