Basics of Digital Filters & Sub-band Coding. Gilad Lerman Math 5467 (stealing slides from Gonzalez & Woods). Digital Filters. The basic setting Assumptions: Input and output signals in or ( n -periodic) The filter is linear → matrix representation
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(stealing slides from
Gonzalez & Woods)
or in book notation
We note that
Additional factor 2 will make it FT of the l1signal h
Need to have h0 h1 g0g1 of perfect reconstruction