FIELD: radio engineering, communication.
SUBSTANCE: filter generator for providing an intermediate filter definition signal comprises a complex modulated filter bank for filtering an impulse response, determining the amplitude/frequency filter characteristic in a time domain to obtain a plurality of complex valued subband signals as the intermediate filter definition signal, wherein each complex valued subband signal of the complex modulated filter bank corresponds to an impulse response for the intermediate filter for the subband signal, wherein each complex valued subband signal is shorter than the impulse response signal.
EFFECT: more efficient, more comprehensive manipulation of a time domain input signal with quality improvement.
18 cl, 11 dwg
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