专利名称：Decimation method and decimation filter发明人：PIIRAINEN, OLLI申请号：FI9700753申请日：19971203公开号：WO9825342A3公开日：19980806
摘要：The invention relates to a decimation method and a decimation filter, whichprovide the transfer function of a CIC decimation filter. Decimation of the number oforder N is performed by coefficient M, whereby FIR filtering is carried out in the mainbranch (100) of the decimation filter by M-tap FIR filters (20) N times in sequence,decimation is carried out by decimation means (21) by coefficient M and comb-filtering iscarried out by means (22) N - 1 times. The effect of sample cycles M preceding thesample cycle M to be processed is taken into account by using side branches (101, 102,104) and additional branches (103, 105, 106, 107).
申请人：NOKIA TELECOMMUNICATIONS OY,PIIRAINEN, OLLI
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