Space target ISAR image processing method for template identification

Disclosed is a space target ISAR image processing method for template identification. The method comprises: performing gray processing on an ISAR image to obtain a gray image; filtering the gray image through adoption of a linear filtering method to obtain a filtered image; performing Radom conversion on the filtered image, determining a main-axis direction of the ISAR image, and rotating a main axis of the ISAR image to a predetermined direction through adoption of a bilinear interpolation method according to the main-axis direction; and normalizing the ISAR image after rotation to be in a predetermined size, and then performing image identification through a CNN (convolutional neural network) method. The gray processing, filtering, the main-axis rotation and normalization processing are performed on the ISAR image, so the ISAR image is converted into an image adapted to identification input, and the identification rate of the ISAR image identification process is improved.