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Semi-Infinite Linear Programming : A Unified Approach to Digital Filter Design with Time- and Frequency-domain Specifications
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Nordebo, Sven (författare)
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Zang, Zhuquan (författare)
- IEEE, 1999
- 1999
- Engelska.
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Ingår i: IEEE transactions on circuits and systems. 2, Analog and digital signal processing (Print). - : IEEE. - 1057-7130 .- 1558-125X. ; 46:6, s. 765-775
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Abstract
Ämnesord
Stäng
- Using the recently developed semi-infinite linear programming techniques and Caratheodory's dimensionality theory, we present a unified approach to digital filter design with time and/or frequency-domain specifications. Through systematic analysis and detailed numerical design examples, we demonstrate that the proposed approach exhibits several salient features compared to traditional methods: 1) using the unified approach, complex responses can be handled conveniently without resorting to discretization; 2) time-domain constraints can be included easily; and 3) any filter structure, recursive or nonrecursive, can be employed, provided that the frequency response can be represented by a finite-complex basis. More importantly, the solution procedure is based on the numerically efficient simplex extension algorithms. As numerical examples, a discrete-time Laguerre network is used in a frequency-domain design with additional group-delay specifications, and in a H-infinity-optimal envelope constrained filter design problem. Finally, a finite impulse response phase equalizer is designed with additional frequency domain H-infinity, robustness constraints.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Nyckelord
- igital filter design
- Laguerre filters
- linear programming
- semi-infinite programming
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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