Digital filtering is an integral part of many digital signal processing algorithms. Digital filters are characterized as either recursive [infinite impulse response (IIR)] or non-recursive [finite impulse response (FIR)] filters.

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Wave Digital Filtering Using the MSP430 Kripasagar Venkat MSP430 Application Report SLAA331September 2006 ABSTRACT Digital filtering is an integral part of many digital signal processing algorithms Digital filters are characterized as either recursive infinite impulse response IIR or nonrecursive finite impulse response FIR filters IIR filters require a smaller order for the same set of specifications compared to FIR filters while FIR filters provide a linear phase property However IIR filters i......