A different speed image motion compensation device and system

Abstract

The embodiment of the present application provides a different-speed image motion compensation device and system, the device includes a main timing unit, a different-speed image motion compensation unit, a horizontal timing unit and a vertical timing unit connected to the area array CCD, and the pixel column of the area array CCD It is divided into more than one column group, the main timing unit generates the timing signal, and the different-speed image motion compensation unit adjusts the vertical timing signal in the timing signal according to the task parameters sent by the system controller, so as to vertically move the charges in each column group The speed is synchronized with the image movement speed, and the adjusted timing driving signal is also transmitted to the horizontal timing unit and the vertical timing unit. The horizontal timing unit and the vertical timing unit respectively amplify and translate the received horizontal timing signal and vertical timing signal, and input the amplified and translated timing signal to the area array CCD to drive the area array CCD. In this way, not only can the motion blur problem of the image of the surveillance camera using the CCD be overcome, but it also has the advantages of easy implementation and low cost.

Description

technical field [0001] The present application belongs to the field of aerospace technology, and in particular relates to an image motion compensation device and system at different speeds. Background technique [0002] In the reconnaissance process, reconnaissance aircraft often need to fly at high speed and low altitude (high-speed height ratio, where the speed-to-height ratio refers to the ratio of speed to height) to avoid radar surveillance. When the carrier aircraft is flying sideways or the lens is tilted to the side for imaging, the aerial camera on the carrier aircraft will be in a squint working state. At this time, different positions on the imaging target surface will have different speeds of image motion, resulting in complex motion blurred images. This phenomenon is also called "different speed image motion". The formation of differential image motion is closely related to the flight attitude of the carrier aircraft. Different parameters such as the flight spe...

AI Technical Summary

Problems solved by technology

However, since this solution needs to improve the mechanical structure, it will inevitably increase the weight, complexity and cost of the imaging system

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