A system, a non-transitory computer readable media and a method for FIR filtering. The method may include obtaining a set of input samples; and concurrently applying a FIR filtering process on the set of input samples to provide a set of FIR filtered output samples. The latter may include calculating intermediate results that represent a first number of coefficient-input sample products, while calculating only some of the first number of coefficient-input sample products, wherein the calculating of the intermediate results is executed by using less than a first number of multipliers.

An apparatus for shifting a digital signal having a first sample rate by a shift time to provide a shifted signal having a second sample rate is provided. The apparatus includes a sample rate converter configured to provide a value of an interpolated signal at a compensated sample time as a sample of the shifted signal, the interpolated signal being based on the digital signal. The sample rate converter is configured to modify a time interval between a sample time of the digital signal and the compensated sample time based on the shift time.

An apparatus for shifting a digital signal having a first sample rate by a shift time to provide a shifted signal having a second sample rate is provided. The apparatus includes a sample rate converter configured to provide a value of an interpolated signal at a compensated sample time as a sample of the shifted signal, the interpolated signal being based on the digital signal. The sample rate converter is configured to modify a time interval between a sample time of the digital signal and the compensated sample time based on the shift time.

An apparatus for shifting a digital signal having a first sample rate by a shift time to provide a shifted signal having a second sample rate is provided. The apparatus includes a sample rate converter configured to provide a value of an interpolated signal at a compensated sample time as a sample of the shifted signal, the interpolated signal being based on the digital signal. The sample rate converter is configured to modify a time interval between a sample time of the digital signal and the compensated sample time based on the shift time.

A system, a non-transitory computer readable media and a method for FIR filtering. The method may include obtaining a set of input samples; and concurrently applying a FIR filtering process on the set of input samples to provide a set of FIR filtered output samples. The latter may include calculating intermediate results that represent a first number of coefficient-input sample products, while calculating only some of the first number of coefficient-input sample products, wherein the calculating of the intermediate results is executed by using less than a first number of multipliers.

An apparatus for shifting a digital signal having a first sample rate by a shift time to provide a shifted signal having a second sample rate is provided. The apparatus includes a sample rate converter configured to provide a value of an interpolated signal at a compensated sample time as a sample of the shifted signal, the interpolated signal being based on the digital signal. The sample rate converter is configured to modify a time interval between a sample time of the digital signal and the compensated sample time based on the shift time.

Control unit (100) for a transmission system, comprising: a sample rate converter (10), which is coupled to a digital-to-analog converting unit (200), wherein digital input data (data_in) are feedable to the sample rate converter (10); a PRBS generator (20), wherein an output signal (ss_div) of the PRBS generator (20) is feedable to the sample rate converter (10) and to a delay element (30), wherein an output signal (ss_div_del) of the delay element (30) is feedable to a frequency synthesizer (40), wherein the frequency synthesizer (40) is clockable by a reference clock (clk_ref) and wherein an output signal (clk_ss) of the frequency synthesizer (40) is feedable to a clock input (10a) of the sample rate converter (10) and to a clock input (200a) of the digital-to-analog converting unit (200).

Control unit for a transmission system, including: a sample rate converter, which is coupled to a digital-to-analog converting unit, wherein digital input data (data_in) are feedable to the sample rate converter; a PRBS generator, wherein an output signal (ss_div) of the PRBS generator is feedable to the sample rate converter and to a delay element, wherein an output signal (ss_div_del) of the delay element is feedable to a frequency synthesizer, wherein the frequency synthesizer is clockable by a reference clock (clk_ref) and wherein an output signal (clk_ss) of the frequency synthesizer is feedable to a clock input of the sample rate converter and to a clock input of the digital-to-analog converting unit.