273 11.3 Sampling l&le 11.1: Dcw-ribirtg different samplc ratcs U) f > 247r oversa,inplirrg fa = W Y 2- - critical sairiplirig Ny yuist-frequency Jb w!l undcmauiplirig =+ sliasing overlapping spectra 7r i Figure 11.11: Impulse resporist o f ail ideal interpolation filtci Figure L 1.12 Sampling arid iiiteipoLttior1 with a n ideal intcrpolntio~ifilter In the tiirw-rloorsin we can obtain with SOIIIC rcarrartgmcnt, tlir reconstructed