Calibration method of amplitude and phase consistency of digital variable polarization radar receiving system

In order to calibrate the consistency of the amplitude and phase of four-channel digital variable polarization monopulse radar receiving system, a calibration method based on exterior space calibration is proposed. Making use of this method, author completes the calibration in the darkroom. After calibration, the experimental results show that in receiving pattern the polarization purity, null depth of difference beam and sidelobe balance are improved. The results demonstrate the method is correct and feasible.