What is this 1 2 S {\displaystyle {\frac {1}{2}}S} before decimation? Is it correct? There should be a shift in time by one sample so I'd expect either z {\displaystyle z} or z − 1 {\displaystyle z^{-1}} . 82.210.168.141 (talk) 04:56, 24 January 2011 (UTC)[reply]
