Microwave photon combined time difference and phase difference high-precision direction finding method and device

The invention provides a microwave photon combined time difference and phase difference high-precision direction finding method and device. The method comprises the following steps: acquiring a microwave signal of a target broadband; performing smooth filtering on each path of microwave signal to obtain a time difference estimation value corresponding to the two paths of microwave signals; obtaining phase difference estimated values corresponding to the two paths of microwave signals according to the relationship between the time difference and the phase difference; performing consistency correction on each path of microwave signal to obtain a time phase calibration coefficient; respectively obtaining a time difference measurement value and a phase difference measurement value through the time phase calibration coefficient; performing combined direction finding processing operation according to the time difference measurement value and the phase difference measurement value to obtain a direction finding angle