An Anti-jamming Design for Image Tracking Process

In order to solve the practical problems of image-guided aircraft in complex environment, such as low success rate of self-recognition and unreliable automatic tracking, this paper proposes an anti-jamming design with “micro-modification” operation method for image tracking process. Firstly, according to the distance between the aircraft and the target, and the target characteristics in the seeker image, two kinds of image guidance workflow are designed, i.e. “Lock before launch” and “Lock after launch”. Secondly, the anti-jamming algorithm with “micro-modification” operation method is innovatively proposed, which effectively combines the recognition capability of “human in the loop” with the automatic tracking function of image seeker, and fundamentally solves the technical problems of reliable target identification, stable tracking and anti-jamming strike. The Semi-physical simulation results show that the aircraft hit accuracy and hit rate are greatly improved under kinds of typical disturbance conditions such as firelight, smoke, low temperature difference between the target and background, and far exceed the requirements of general tactical indicators.