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Optimization and comparision of fixed-point implementations for first and second-order digital blocks

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3 Author(s)
Calcagno, P. ; Centro Studie Lab. Telecomun., Turin, Italy ; Garetti, E. ; Meo, A.

The problem of optimizing the organization of fixed-point implementations for first- and second-order digital filters is discussed. The direct and canonical forms are analyzed in detail and compared with each other with regard to the input quantization and roundoff noise effects. A summary of the computation results is plotted in some diagrams depicting on the z plane the zones of greater convenience of either solution.

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Audio and Electroacoustics, IEEE Transactions on  (Volume:19 ,  Issue: 4 )