Full-strapdown terminal guidance method for unmanned aerial vehicle

Abstract

The invention discloses a strapdown terminal guidance method for an unmanned aerial vehicle. The method comprises the following steps of firstly, collecting image information of a target area by a full-strapdown seeker of the unmanned aerial vehicle; secondly, splicing the image information, and carrying out suspicious target detection on the spliced image; thirdly, determining an actual positionof a suspicious target on the image, and adjusting an air route according to the actual position in order to make the unmanned aerial vehicle fly around the suspicious target; fourthly, confirming thetarget and tracking the target; and fifthly, after effective tracking is carried out on the target, enabling a ground station to issue an attack instruction, enabling a guiding system of the unmannedaerial vehicle to receive the instruction, judging whether the guiding system updates the guidance information, if the guidance information is updated, enabling the guiding system to apply terminal guidance control and judge whether a terminal guidance process is completed and whether a terminal guidance task is cancelled in real time, and if the guidance information is not updated, the terminalguidance process is completed or the terminal guidance task is canceled, returning the fourth step. According to the method, the cost is low, and a problem of navigation guidance control based on thefull-strapdown seeker of the micro-miniature unmanned aerial vehicle is solved.

Description

technical field [0001] The invention belongs to the technical field of aircraft navigation guidance and control, and in particular relates to a strapdown terminal guidance method for unmanned aerial vehicles. Background technique [0002] With the development of guidance technology, people have developed a platform-stabilized seeker and a full strapdown optical seeker. Among them, the strapdown terminal guidance is a new form of guidance, and it is the preferred technical solution for various low-cost and miniaturized UAVs. Compared with the traditional platform seeker, the biggest advantage lies in its small size, light weight, low cost. It is divided into two forms: full strapdown and semi-strapdown. The full strapdown method completely cancels the mechanical rotary mechanism, so that the tracking speed and tracking accuracy are not affected by mechanical restrictions and friction torque, and the reliability is improved. [0003] Most of the research on the application o...

AI Technical Summary

Problems solved by technology

In addition, the tracking process requires a large instantaneous field of view, which leads to an increase in the amount of data in a single image, and it is very difficult to extract the line-of-sight angular velocity

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