Multi-target positioning method based on single aircraft seeker image information

Abstract

The invention belongs to the technical field of aircrafts, and provides a method for positioning multiple targets according to image information of a single aircraft seeker. The method comprises the steps: based on seeker image information, providing a multi-target positioning method under two conditions that the reference target position is known and unknown; if the position of the reference target is known, measuring the relative orientation, perpendicular to the sight line, of the multiple targets and the reference target through seeker image information and converting the relative orientation into a ground coordinate system, so if the position of the reference target is known, the position of the auxiliary point can be obtained; extending the connecting line of the aircraft and the auxiliary point to the ground to obtain a multi-target position estimation value; if the position of the reference target is unknown, measuring the orientation of multiple targets by using seeker image information to obtain the unit relative position vector of the aircraft and the multiple targets, converting the unit relative position vector to a ground coordinate system, and enabling the relative position vector of the aircraft and the targets to be extended to the ground to obtain a target position estimated value. The method can be applied to ground target tasks of various aircrafts, and the environment adaptive capacity and the task execution capacity are improved.

Description

technical field [0001] The invention belongs to the technical field of aircraft, and in particular relates to a method for locating multiple targets according to the image information of a single aircraft seeker. Background technique [0002] When the aircraft conducts reconnaissance and strikes on ground targets, it is faced with complex and changeable ground environments, and the discovery of time-sensitive targets at any time. It is urgent to improve the perception and positioning capabilities of aircraft for complex environments and time-sensitive targets. With the development of infrared and visible light imaging seeker technology, the seeker can have multiple target detection and recognition capabilities, which can provide support for multi-target positioning. In order to meet the requirements of aircraft swarms to perform tasks cooperatively and improve the level of autonomy and intelligence of aircraft, it is necessary to realize the on-board processing of multi-targ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problems of current multi-target positioning methods such as complex equipment, high information requirements, and large data storage capacity, and provide a multi-target positioning method based on single-aircraft seeker image information, which can be applied to various types of aircraft. In the ground target task, it has the characteristics of small calculation amount and high stability, and can realize the fast and effective solution of multiple target positions

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