Pascal-Interpolation-Based Noninteger Delay Filter and Low-Complexity Realization
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Date
2015-12
Authors
Soontornwong, Parinya
Chivapreecha, Sorawat
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Referee
Mark
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Volume Title
Publisher
Společnost pro radioelektronické inženýrství
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Abstract
This paper proposes a new method for designing the polynomial-interpolation-type noninteger-delay filter with a new structure formulation. Since the design formulation and the new realization structure are based on the discrete Pascal transform (DPT) and Pascal interpolation, we call the resulting filter Pascal noninteger-delay filter. The kth-order Pascal polynomial is used to pass through the given (k+1) data points in achieving the kth-order Pascal filter. The Pascal noninteger-delay filter is a real-time filter that consists of two sections, which can be realized into the front-section and the back-section. The front-section contains multiplication-free digital filters, and the number of multiplications in the back-section just linearly increases as order becomes high. Since the new Pascal filter has low complexity and structure can adjust non-integer delay online, it is more suited for fast delay tuning. Consequently, the polynomial-interpolation-type delay filter can be achieved by using the Pascal approach with high efficiency and low-complexity structure.
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Citation
Radioengineering. 2015 vol. 24, č. 4, s. 1002-1012. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2015/15_04_1002_1012.pdf
http://www.radioeng.cz/fulltexts/2015/15_04_1002_1012.pdf
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Peer-reviewed
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en