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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2009.5
- 수록면
- 521 - 526 (6page)
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초록· 키워드
오류제보하기
In this paper, a complex-valued recursive least squares escalator filter algorithm with reduced computational complexity for complex-valued signal processing applications is presented. The local tap weight of RLS-ESC algorithm is updated by incrementing its old value by an amount equal to the local estimation error times the local gain scalar, and for the gain scalar, the local input autocorrelation is calculated at the previous time. By deriving a new gain scalar that can be calculated by using the current local input autocorrelation, reduced computational complexity is accomplished. Compared with the computational complexity of the complex-valued version of RLS-ESC algorithm, the computational complexity of the proposed method can be reduced by 50% without performance degradation. The reduced computational complexity of the proposed algorithm is even less than that of the LMS-ESC. Simulation results for complex channel equalization in 64QAM modulation schemes demonstrate that the proposed algorithm has superior convergence and constellation performance.
목차
ABSTRACT
Ⅰ. Introduction
Ⅱ. Escalator Filter Structure
Ⅲ. Adaptive Escalator Algorithms
Ⅳ. Complex-valued RLS-ESC(CRLS-ESC) Algorithm with Reduced Computational Complexity
Ⅴ. Simulation Results and Discussion
Ⅵ. Conclusions
References
참고문헌 (6)
참고문헌 신청
1. [학술지(정기간행물)] - Ahmed / 1980 / On realization and related algorithm for adaptive prediction / IEEE Trans. Acoust., Speech, Signal Processing ASSP-28 : 493 ~ 497
2. [학술대회논문] - K. M. Kim / 1990 / Adaptive Multichannel Digital Filter with Lattice-Escalator Hybrid Structure / Proceedings of the 1990 ICASSP : 1413 ~ 1416
3. [학술지(정기간행물)] - V. N. Parikh / 1998 / The Use of the Modified Escalator Algorithm to Improve the Performance of Transform-Domain LMS Adaptive Filters / IEEE Trans. on Signal Processing 46 (3) : 625 ~ 635
4. [학술지(정기간행물)] - 김남영 / 2006 / A Least Squares Approach to Escalator Algorithms for Adaptive Filtering / ETRI Journal 28 (2) : 155 ~ 161
5. [단행본] - S. Haykin / 2001 / Adaptive Filter Theory / Prentice Hall
2. [학술대회논문] - K. M. Kim / 1990 / Adaptive Multichannel Digital Filter with Lattice-Escalator Hybrid Structure / Proceedings of the 1990 ICASSP : 1413 ~ 1416
3. [학술지(정기간행물)] - V. N. Parikh / 1998 / The Use of the Modified Escalator Algorithm to Improve the Performance of Transform-Domain LMS Adaptive Filters / IEEE Trans. on Signal Processing 46 (3) : 625 ~ 635
4. [학술지(정기간행물)] - 김남영 / 2006 / A Least Squares Approach to Escalator Algorithms for Adaptive Filtering / ETRI Journal 28 (2) : 155 ~ 161
5. [단행본] - S. Haykin / 2001 / Adaptive Filter Theory / Prentice Hall
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UCI(KEPA) : I410-ECN-0101-2009-567-018366564