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An Algorithm of Dim Target Detection Based on Strap-down Decoupling Extended Kalman Filter

The detection of dim targets in imagery which captured by moving camera is one of the key techniques in imaging detection and guiding system. With the strap-down inertia information we can reduce the influence of camera move. Analyzed the mechanism of image generation and the moving formulations of space-platform and targets, proposed a detecting system including two dimensions least mean square filter, strap-down decoupling and extended Kalman filter. Simulations show that this system can detect the dim targets captured by moving camera effectively.