Method for aligning receiver I/Q in TDD system and receiver-transmitter platform

I/Q imbalance calibration method of receiver machine in TDD system and receiving-transmitting machine platform. The said method comprises: enable the communicator in active state, the baseband module produce signals and send to the communicator; enable the receiver machine in active state, receive signals from communicator and send the obtained signal to the baseband module, carry through the I/Q imbalance calibration processing. The invention calibrate the precision of I/Q imbalance of receiver machine to that of communicator according to the characteristic that TDD system receive and transmit same frequency signals and the I/Q accuracy of communicator itself can meet the requirements of I/Q imbalance performance, measure and calibrate I/Q imbalance with the radio-frequency signals the communicator leak on the receiver machine, improves efficiency, reduces requirements to the instrumentation. As this method has extremely high efficiency, thereby it reduces the requirements of system to the integrated circuit (IC) of receiver machine; provide the possibility to reduce the IC cost of the receiver machine.