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Synthesis of FIR lattice structures

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1 Author(s)
Dutta Roy, S.C. ; Dept. of Electr. Eng., Indian Inst. of Technol., New Delhi, India

The usual procedure for synthesising the Nth order digital FIR transfer function AN(z) in which the constant term is unity and the coefficient of z-N is -aN(N) by a lattice structure fails if aN(N)=±1. The author is concerned with a solution to this problem. It is known that under this condition. AN(z) must be linear phase to be realisable by a lattice structure. A synthesis procedure is given for such an AN(z). For a general nonlinear phase AN(z) with aN(N)=±1, an alternative synthesis procedure is also given in terms of parallel lattice structures

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Vision, Image and Signal Processing, IEE Proceedings -  (Volume:147 ,  Issue: 6 )