A method for integrated target positioning and recognition based on sensing for millimeter wave satellites

In this paper, an integrated target location and recognition method for millimeter wave satellites is proposed, which relates to the field of satellite communication, especially the intersatellite communication system involving the E-band in millimeter wave. The specific process includes: before the link is established, the prefabricated antenna is pointed at the Angle and the target star is pointed to search the continuous signal; The azimuth and pitch error signals are orthogonal to single and difference signals, and the corresponding phase modulation is carried out to obtain IF signals. The IF signal is detected, the azimuth pitch Angle error voltage is demodulated, and the in-band signal is judged to realize the target positioning and recognition, and then the pointing Angle of the antenna is adjusted according to the target positioning and recognition results. we apply the morphological filtering method to determine the adaptive threshold, and can dynamically track the time-frequency change of noise power in a broadband channel.