Automatic receiver calibration with noise and fast fourier transform

An apparatus, comprising:

• a processor, configured to generate at least one output inphase component and at least one corresponding output quadrature component of an input noise signal in inphase and quadrature branches, respectively, using a pre-selected procedure;
• an FFT block, configured to generate at least two fast Fourier transforms of said at least one output inphase component and at least one corresponding output quadrature component;
• and
• a calibration logic block, configured to calibrate said apparatus for eliminating a frequency dependent imbalance between at least two parameters each corresponding to a unique one of said at least two fast Fourier transforms by comparing said at least two parameters using a predetermined criterion,
• wherein a noise source does not require an electrical power to be provided by said apparatus for generating said input noise signal.

A device, comprising:

• an apparatus configured to be automatically calibrated without generating a specific test signal, said apparatus comprises:
• a processor, configured to generate at least one output inphase component and at least one corresponding output quadrature component of an input noise signal in inphase and quadrature branches, respectively, using a pre-selected procedure;
• an FFT block, configured to generate at least two fast Fourier transforms of said at least one output inphase component and at least one corresponding output quadrature component;
• and
• a calibration logic block, configured to calibrate said apparatus for eliminating a frequency dependent imbalance between at least two parameters each corresponding to a unique one of said at least two fast Fourier transforms by comparing said at least two parameters using a predetermined criterion,
• wherein a noise source does not require an electrical power to be provided by said apparatus for generating said input noise signal.

An apparatus, comprising:

• means for generating at least one output inphase component and at least one corresponding output quadrature component of in input noise signal in inphase and quadrature branches, respectively, by said apparatus using a pre-selected procedure;
• means for generating at least two fast Fourier transforms of said at least one output inphase component and at least one corresponding output quadrature component;
• and
• means for calibrating said apparatus for eliminating a frequency dependent imbalance between at least two parameters each corresponding to a unique one of said at least two fast Fourier transforms by comparing said at least two parameters using a predetermined criterion, wherein a noise source does not require an electrical power to be provided by said apparatus for generating said input noise signal.