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Fast parallel DSP algorithms on barrel shifter computers

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2 Author(s)
Angelopoulos, G. ; Dept. of Electr. & Comput. Eng., Aristotelian Univ. of Thessaloniki, Greece ; Pitas, I.

Parallel algorithms on barrel shifter computers for a broad class of 1-D and 2-D signal operators are presented. The max/min selection filter, the moving average filter, and the sorting and sliding window fast Fourier transform algorithms are examined. The proposed algorithms require a significantly smaller number of comparisons/computations than the conventional ones. A novel extension of the barrel shifter networks for 2-D signals is introduced, and the implementation of the proposed algorithms on them is also discussed

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Signal Processing, IEEE Transactions on  (Volume:44 ,  Issue: 8 )