Sample rate conversion using infinite impulse response filters

A system for asynchronous sampling rate converting, the system comprising:

• a set of phasor filters, each phasor filter including an input stage and an output stage, the input stages of the set of phasor filters being configured to:
• receive an input signal, the input signal having a first sampling rate;
• and
• filter the input signal at the first sampling rate to generate a plurality of filtered signals;
• and
• the output stages of the set of phasor filters being configured to:
• a) scale the plurality of filtered signals to generate a plurality of rescaled signals;
• and
• b) sum the plurality of rescaled signals to generate an output signal having a second sampling rate, wherein the second sampling rate differs from the first sampling rate;
• and
• a data buffer configured to temporarily store the plurality of filtered signals.

A non-transitory processor-readable medium having embodied thereon a program being executable by at least one processor to perform a method for asynchronous sampling rate converting, the method comprising:

• receiving an input signal, the input signal having a first sampling rate;
• filtering the input signal with a plurality of input stages of a set of phasor filters at the first sampling rate to generate a plurality of filtered signals;
• scaling the plurality of filtered signals utilizing a plurality of output stages of the set of phasor filters to generate a plurality of rescaled signals;
• and
• summing the plurality of rescaled signals to generate an output signal having a second sampling rate, wherein the second sampling rate differs from the first sampling rate, wherein the plurality of filtered signals includes a set of complex values;
• and wherein the plurality of rescaled signals includes a set of real values.