Dual-channel joint zero value real-time calibration device and method

The invention relates to a dual-channel joint zero value real-time calibration device and method in the technical field of zero value calibration. The device comprises: a signal transmitting module used for generating a transmitting carrier and a measurement channel pseudo code, one path converting the measurement channel pseudo code and the transmitting carrier after digital frequency mixing and outputting an analog signal, and the other path outputting the measurement channel pseudo code to a digital channel calibration module; the radio frequency module is used for performing up-down conversion processing on the analog signal and outputting an analog intermediate frequency signal; the analog channel calibration module is used for performing analog-to-digital conversion and analog channel zero value measurement on the analog intermediate frequency signal and outputting an analog channel zero value; the digital channel calibration module is used for measuring the phase of the pseudo code of the measurement c