Method and system of calibration of a second order intermodulation intercept point of a radio transceiver

System of calibration of a second order intermodulation intercept point (IIP2) of a radio transceiver, characterized in that it comprises generating means (21) to generate a second order intermodulation reference signal (STXIM2-REF) from a transmission baseband signal (STXBB-REF), estimating means (22) to estimate the second order intermodulation power from the second order intermodulation reference signal (STXIM2-REF) and a radio transceiver output signal (Output), extracting means (23) to extract an optimum second order intermodulation intercept point corresponding to a lowest second order intermodulation power.

System of suppression of second order intermodulation of reception means (4) of a radio transceiver, characterized in that it includes injecting means (25) to inject a transmit radiofrequency signal (STXRF-REF) from an up converter (6) of transmission means (1) into a mixer (9) of reception means (4), generating means (21) to generate a second order intermodulation reference signal (STXIM2-REF) from a transmission baseband signal (STXBB-REF), estimating means (22) to estimate the second order intermodulation power from the second order intermodulation reference signal (STXIM2-REF) and a radio transceiver output signal (Output), extracting means (23) to extract an optimum second order intermodulation intercept point corresponding to a lowest second order intermodulation power, subtraction means (11) to subtract the second order intermodulation signal (STXIM2-REF) extracted from the radio transceiver output signal (Output) to the radio transceiver output signal (Output).