Civil aviation ground-air communication self-adaptive disturbance restraining method based on the constant mode array and its system

The invention relates to civil aviaton groud air communication self-adapting interference suppression method and its system based on the lasting model array, including the following steps: translate the bi-aerial wire array received two path high frequency amplitude modulation signals into the medium frequency signal; and carries on data capture and analog-to-digital convert; carries on the digital down-conversion filtering drawoff; sends the drawoffed signal into the monitoring model to judge, if no interference into the demodulation, has the interference to enter the interference signal drawoff; sends the interference signal into the self-adapting lasting model interference suppression module to drawoff the interference signal and self-adapting cancellation; demodulates the state no interference signal and filters the high frequency noise to carry on D/A conversion output. Under no reference signal premise, the invention separates out the groud air communication useful signal of using the lasting model blind signal processing technogy and the self-adapting interference cancellation technogy, removes the flight safety hidden danger, outputs the high quality pronunciation signal, enhances the flight safety coefficient, achieves the goal of taking stopgap measure and effect a permanent cure.