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New Systolic Algorithm and Array Architecture for Prime-Length Discrete Sine Transform

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2 Author(s)
Meher, P.K. ; Sch. of Comput. Eng., Nanyang Technol. Univ., Singapore ; Swamy, M.N.S.

Using a simple input-regeneration approach and index-transformation techniques, a new formulation is presented in this paper for computing an N-point prime-length discrete sine transform (DST) through two pairs of [(N-1)/4]-point cyclic convolutions, where [(N-1)/4] is an odd number. The cyclic convolution-based algorithm is used further to obtain a simple regular and locally connected linear systolic array for concurrent pipelined implementation of the DST. It is shown that the proposed systolic structure involves significantly less area-time complexity compared with that of the existing structures

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Circuits and Systems II: Express Briefs, IEEE Transactions on  (Volume:54 ,  Issue: 3 )