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Comparison of Cascade, Lattice, and Parallel Filter Architectures

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5 Author(s)
Patnaik, R. ; Electr. & Comput. Eng. Dept., Texas A&M Univ., College Station, TX, USA ; Vandrasi, V. ; Madsen, C.K. ; Eftekhar, A.A.
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We examine the use of different high-level filter architectures (cascade, lattice, and parallel). We discuss their advantages and disadvantages, and we present simulation results and filter-tolerance tests. This information serves as a useful comparative analysis in the selection of a high-level filter architecture for a particular problem. The sensitivity to nonlinearity is also evaluated as resonance-enhanced power in the feedback path. For narrowband band-pass responses, cascade architectures appear to be more tolerant to filter parameter variations than lattice architectures and are substantially more efficient than parallel architectures.

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Lightwave Technology, Journal of  (Volume:28 ,  Issue: 23 )