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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- Korean Institute of Information Scientists and Engineers Journal of Electrical Engineering and Information Science Journal of Electrical Engineering and Information Science Vol.3 No.4
- 발행연도
- 1998.8
- 수록면
- 531 - 537 (7page)
이용수
초록· 키워드
오류제보하기
In this paper, we provide an analysis of error due to finite precision implementation of subband filter banks. We uitilize bit allocation algorithm originally developed for signal coding for precision allocation among data paths. The error has two components i.e., filter coefficient quantization error and roundoff error. In order to accurately model these errors it is necessary to consider two effects simulaneously. Previous work was limited to separate treatments of either effects. Our approach gives the optimal bit allocations minimizing the output noise variance under filter coefficient quantization and finite data paths. Specific design example is worked out for 4-tap filter in the two band paraunitary case. The validity and accuracy of the mode1 are confirmed by comparing with computer simulation.
목차
Abstract
Ⅰ. Introduction
Ⅱ. Finite Precision Error Model
Ⅲ. Incorporation of the Quantizer Model into Filter Banks
Ⅳ. Optimization of Finite Wordlength in Filter Banks
Ⅴ. Design Examples
Ⅵ. Conclusion
References
저자소개
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