Digital Filter Design : Douglas L. Jones : Free Download, Borrow, and Streaming : Internet Archive
PDF] Fast FIR Algorithm Based Parallel FIR Digital Filter Structures for Symmetric Convolutions | Semantic Scholar
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First learn digital filter and fast Fourier transform - from basic and principles may be for understanding (digital signal processing series): Good | Anime Plus
PDF] FAST TWO DIMENSIONAL DIGITAL FILTER DESIGN BASED ON FAST FOURIER TRANSFORM | Semantic Scholar