대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)
- 대한전자공학회 2000년도 제13회 신호처리 합동 학술대회 논문집
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- Pages.667-670
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- 2000
벡터양자기를 사용한 최적의 이차원 부대역필터의 구현
Optimum design of two-dimensional subband filter banks using vector quantizer
- Jonghong Shin (Department of Electrical Engineering, Hongik University) ;
- Innho Jee (School of Electronics, Electrical, and Computer Engineering, Hongik University)
- 발행 : 2000.09.01
초록
This paper provides a heuristic theory for modeling and analysis of vector quantization effects in 2-dimensional subband filter banks. This model is used as the basis for optimal filter bank design. The scalar non-linear gain-plus-additive noise quantization model can be used to represent each vector quantizer in 2-band subband codec. The validity and accuracy and of this analytic model is confirmed by comparing the calculated model quantization errors with actual simulation of the optimum LBG vector quantizer. Numerical design examples for the optimum separable paraunitary filter banks are suggested in this paper.
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