Circuit arrangement for filtering a current quantized of electrical signals and a method for filtering a stoms quantized of electrical signals

摘要

Circuit arrangement for filtering a current quantized, electrical signals from an analog - digital - transducer, which have a uniform amplitude response and a linear phase response over a predetermined pass band f_B , wherein the current quantized, electrical signals of a predetermined rate f_M , characterized by:a decimation - filter (12) for filtering of the current quantized, electrical signals, the a filtered output signal with an output rate f''_S it can deliver, wherein the decimation - filter (12) a frequency response h (ω) has, which is defined by: where k is a positive integer, t is the sampling period of the decimation - filter (12) and r is a decimation ratio, which is defined by r = f_M/F''_S, anda amplitudes - correcting means (20) to receive the filtered output signal is formed and the amplitude of the filtered output signal over the predetermined pass band f_B corrected.