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Implementation of reconfigurable recursive digital filters on FPGA

Sergienko A.M, Lesyk T.M.

Features of the dynamically tuned IIR filters, which are configured in FPGA, are considered. The filters utilize the frequency masking properties of the all-pass digital filters, which have the delay factors z-k. The mapping of the filter algorithm is implemented using pipelining and C-slow retiming techniques, which provide the minimized hardware volume and high clock frequency of the resulting filters.


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