Method for quickly generating large-scene SAR image containing non-cooperative target

Abstract

The invention discloses a method for quickly generating a large-scene SAR (Synthetic Aperture Radar) image containing a non-cooperative target, and aims to solve the problems of high resource expenditure, long time consumption and inflexible target configuration in the existing large-scene image generation. According to the technical scheme, firstly, a background image and target slice image database is established, a required wide background image A is selected from the background image database, and an image mask G of the A is constructed; P target slice images are selected from the target slice image database and the P target slice images are converted to obtain a slice conversion image with the same quantization bit number as the actually measured background image; Finally, the slice transform graphs containing different target types and attitude angles are randomly inserted into a background image A provided with mark information by an image mask to obtain a large-scene SAR imagemeeting actual requirements. A complex scene modeling process in traditional SAR scene simulation is avoided, various different large-scene images can be quickly generated, and diversified SAR image interpretation algorithm training and test task requirements are met.

Description

technical field [0001] The invention belongs to the technical field of image processing, and relates to a scene SAR (synthetic aperture radar) image generation method, in particular to a large-scene SAR image rapid generation method suitable for target interpretation algorithm testing and verification. Background technique [0002] The training and testing of SAR target interpretation algorithms is inseparable from a large amount of data support, especially the data-driven algorithms represented by deep learning, which rely more heavily on big data. Compared with general optical images, obtaining measured SAR image data has higher requirements on equipment conditions and higher cost. Especially for non-cooperative targets, it is even more difficult to obtain a large amount of measured data. [0003] Electromagnetic simulation provides a feasible way to obtain SAR image data, especially for low-exposure military sensitive targets, electromagnetic simulation is even the only ...

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to propose a method for quickly generating large-scene SAR images with non-cooperative targets in view of the problems of large resource overhead, long time consumption, and inflexible target configuration in the current generation of large-scene images

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