The multinotch, part II: Extra precision via Δ coefficients
作者： Daniel Y. Abramovitch
关键词:
摘要: In [1], we presented a new digital filter architecture, the multinotch, which minimized computational latency while preserving numerical accuracy even in presence of severe quantization. While this method is far more accurate than discretizing polynomial filters, it can still be susceptible to problems caused by sample rate significantly higher frequencies features that trying implement. This paper presents modification, called Δ coefficients, preserve all positive properties multinotch dramatically increasing over large frequency range.
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