Secondary echo identification method based on X-band phased array radar base data

The invention discloses a secondary echo recognition method based on X-band phased array radar base data. The method comprises the following steps: acquiring the X-band phased array radar base data and performing quality control; carrying out binarization processing on the radial speed data of the X-band phased array radar; identifying radial velocity connected regions by using an '8' neighborhood method, and obtaining graphic parameters of each connected region; screening the radial speed communication region, and screening out a possible region of a secondary echo; calculating the radial standard deviation of the radial velocity in the secondary echo possible area, and judging whether abnormal fluctuation of the radial velocity exists or not; judging whether the radial number with abnormal fluctuation exceeds a threshold value or not, and determining a secondary echo region; and setting each radar parameter in the secondary echo region as an invalid value to realize identification and elimination of seconda