- Research Article
- Open Access
A Novel Approach to the Design of Oversampling Low-Delay Complex-Modulated Filter Bank Pairs
EURASIP Journal on Advances in Signal Processing volume 2009, Article number: 692861 (2009)
In this contribution we present a method to design prototype filters of oversampling uniform complex-modulated FIR filter bank pairs. Especially, we present a noniterative two-step procedure: (i) design of analysis prototype filter with minimum group delay and approximately linear-phase frequency response in the passband and the transition band and (ii) Design of synthesis prototype filter such that the filter bank pairs distortion function approximates a linear-phase allpass function. Both aliasing and imaging are controlled by introducing sophisticated stopband constraints in both steps. Moreover, we investigate the delay properties of oversampling uniform complex-modulated FIR filter bank pairs in order to achieve the lowest possible filter bank delay. An illustrative design example demonstrates the potential of the design approach.
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Kurbiel, T., Göckler, H.G. & Alfsmann, D. A Novel Approach to the Design of Oversampling Low-Delay Complex-Modulated Filter Bank Pairs. EURASIP J. Adv. Signal Process. 2009, 692861 (2009). https://doi.org/10.1155/2009/692861
- Information Technology
- Frequency Response
- Quantum Information
- Design Approach
- Group Delay