A real-time tracking method for space dynamic target with multi-satellite coordination

A dynamic target and real-time tracking technology, applied in the field of satellite scheduling, can solve the problems of ignoring the real-time nature of tracking tasks, ignoring the rules of continuous resource usage on the satellite, and difficult identification

CN110412869BActive Publication Date: 2020-06-09CENT SOUTH UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-06-09

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Abstract

The invention discloses a multi-satellite coordinated real-time tracking method for a spatial dynamic target. The method comprises the steps of firstly establishing a low earth orbit satellite and staring detector model, a tracking task model and a visible time window model; then introducing a rolling time domain concept when real-time tracking is performed on the spatial dynamic target, taking the forward-looking fixed time length T as the rolling time domain to obtain a tracking task of a ballistic missile in the rolling time domain, and establishing a single-layer to-be-tracked task set with the single rolling time domain as a reference, and splitting each to-be-tracked task into a plurality of atomic tasks in the rolling time domain by use of a reverse tree structure to obtain a set ofdetector resources corresponding to each atomic task; and finally, constructing a fitness function based on constraints and objective functions of resource scheduling, and then solving the optimal particle individual based on the fitness value of the particle individual through an evolutionary particle swarm optimization algorithm with crossover and mutation operations, and performing resource scheduling of the detector resources on the single-layer atomic task set according to the optimal particle individual.
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Description

technical field

[0001] The invention relates to the technical field of satellite scheduling, in particular to a multi-satellite coordinated space dynamic target real-time tracking method. Background technique

[0002] The real-time tracking task for ballistic missiles is an important means to discover, monitor and track enemy strategic missiles and issue alarms. It can obtain the infrared radiation of enemy strategic missiles, determine the coordinates of the missile's location, and judge the launch point and landing point of the missile , and can send target images to ground stations or ground command centers, providing important intelligence information for military anti-missile and military confrontation.

[0003] Space reconnaissance and surveillance systems usually include high-orbit satellites and low-orbit satellites. After the high-orbit satellite confirms the suspicious missile target, the ground command center dispatches the spaceborne staring detector on the low-...

Examples

Embodiment Construction

[0107] The following is a detailed description of the embodiments of the present invention. This embodiment is carried out based on the technical solution of the present invention, and provides detailed implementation methods and specific operation processes to further explain the technical solution of the present invention.

[0108] A multi-satellite coordinated space dynamic target real-time tracking method of the present invention includes two stages: tracking task decomposition based on rolling time domain and multi-satellite coordinated reconnaissance task scheduling, such as figure 1 , 2 As shown, it specifically includes the following steps:

[0109] Step 1, establish a problem model;

[0110] In view of the characteristics of high real-time tracking tasks, difficult recognition, and fine time constraints, in the tracking task decomposition stage, the problem model is firstly established, including low-orbit satellite and staring detector models, tracking task models, ...