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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국조명·전기설비학회 조명·전기설비학회논문지 Journal of the Korean Institute of Illuminating and Electrical Installation Engineers Vol.20 No.9
- 발행연도
- 2006.11
- 수록면
- 32 - 39 (8page)
이용수
초록· 키워드
오류제보하기
In this paper, an iterative subspace-based calibration algorithm for a CDMA-based antenna array in the presence of unknown gain and phase error is presented. The algorithm does not depend on the array geometry and does not require a prior knowledge of the Directions Of Arrival (DOA) of the signals. The method requires the code sequence of a reference user only. The proposed algorithm is based on the subspace method and root finding approach, and it provides estimates of the calibration vector, the DOA and the channel impulse response, by using the code sequence of a reference user. The performance of the proposed algorithm was investigated by means of computer simulations and was verified using field data measured through a custom-built W-CDMA test-bed. The data show that experimental results match well with the theoretical calibration algorithm. Also, teh study propose an efficient algorithm using the simulated annealing technique. This algorithm overcomes the requirement of initial guessing in the subspace-based approach.
목차
Abstract
1. Introduction
2. Subspace-based Approach
3. Optimization Approach
4. Conclusions
Acknowledgement
References
Biography
참고문헌 (6)
참고문헌 신청
G. Tsoulos and M. Beach, “Calibration and linearity issues for an adaptive antenna system,” Proc. 47th IEEE Vehicular Technology Conference, Volume 3, pp. 1597-1600 , May 1997.
Chong Hyun Lee and Joohwan Chun, “A subspace-based online calibration algorithm for an asynchronous CDMA-based antenna array”, National Aerospace & Electronics Conference, Serial. pp 146-150, 2000, Dayton, USA, Oct. 2000.
S. Bensley and Behnaam Aazhang, “Subspace-Based Channel Estimation for Code Division Multiple Access Communication Systems”, IEEE Tras. Comm., Vol. 44, pp 1009-1020, Aug. 1996.
I.~O. Bohachevsky, M.~E. Johnson, and M.~L. Stein, “Generalized simulated annealing for function optimization,” Technometrics 2 8(3), pp. 209--217, 1986.
A. Corana, M. Marchesi, C. Martini, and S. Ridella, “Minimizing multimodal functions of continuous variables with the simulated annealing algorithm,” ACM Transactions on Mathematical Software 13(3), pp.~262--280, 1987.
Chong Hyun Lee and Joohwan Chun, “A subspace-based online calibration algorithm for an asynchronous CDMA-based antenna array”, National Aerospace & Electronics Conference, Serial. pp 146-150, 2000, Dayton, USA, Oct. 2000.
S. Bensley and Behnaam Aazhang, “Subspace-Based Channel Estimation for Code Division Multiple Access Communication Systems”, IEEE Tras. Comm., Vol. 44, pp 1009-1020, Aug. 1996.
I.~O. Bohachevsky, M.~E. Johnson, and M.~L. Stein, “Generalized simulated annealing for function optimization,” Technometrics 2 8(3), pp. 209--217, 1986.
A. Corana, M. Marchesi, C. Martini, and S. Ridella, “Minimizing multimodal functions of continuous variables with the simulated annealing algorithm,” ACM Transactions on Mathematical Software 13(3), pp.~262--280, 1987.
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