WaveletsandFilterBanks_MITLecture1Discrete-timeFilters:ConvolutionFourierTransformLowpassandHighpassFiltersLecture2SamplingRateChangeOperations:UpsamplingandDownsamplingFractionalSamplingInterpolationLecture3FilterBanks:TimeDomain(Haarexample)andFrequencyDomainConditionsforAliasCancellationa