A Time-Domain GSC Algorithm Based on Wavelet Filter 


Vol. 35,  No. 11, pp. 948-956, Nov.  2010


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  Abstract

Griffiths and Jim has proposed a beamforming structure called GSC algorithm, in which antenna elements are grouped into main-channel and sub-channel, and sidelobe is reduced by applying adaptive LMS algorithm. This paper proposes WLMS-GSC algorithm where the Haar and Daubechies wavelet filters are used to process array antenna output, instead of using subtractor filter. We analyze characteristics of the proposed WLMS-GSC algorithm. The WLMS-GSC has characteristic of reducing the computational requirement one-half compared to the LMS-GSC algorithm. In addition, we obtain MSE characteristics and adaptive beampattern of WLMS-GSC algorithm, and compared with the performance of LMS-GSC algorithm. The simulation results show that the WLMS-GSC algorithm proposed in this paper gives better or almost the same performance, compared to the LMS-GSC algorithm. In addition, the newly proposed structure has advantage of low computational requirements.

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  Cite this article

[IEEE Style]

C. P. Hong, C. H. Kim, S. Y. Whang, J. M. Yang, "A Time-Domain GSC Algorithm Based on Wavelet Filter," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 11, pp. 948-956, 2010. DOI: .

[ACM Style]

Chun Pyo Hong, Chang Hoon Kim, Seok Yoon Whang, and Jeen Mo Yang. 2010. A Time-Domain GSC Algorithm Based on Wavelet Filter. The Journal of Korean Institute of Communications and Information Sciences, 35, 11, (2010), 948-956. DOI: .

[KICS Style]

Chun Pyo Hong, Chang Hoon Kim, Seok Yoon Whang, Jeen Mo Yang, "A Time-Domain GSC Algorithm Based on Wavelet Filter," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 11, pp. 948-956, 11. 2010.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880