Method for dynamically planning coverage imaging of multiple satellites on regional target
A technology of regional target and dynamic programming, applied in the field of aerospace remote sensing, to achieve high fault tolerance effect
Pending Publication Date: 2020-09-15
CHANGGUANG SATELLITE TECH CO LTD
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[0014] Based on this, it is necessary to address the problems existing in the existing multi-satellite imaging method for the same area target, and provide a method for dynamically planning the coverage imaging of multiple satellites for the area target. The multi-satellite planning method in which the situation changes dynamically is a method that is actually available in the actual satellite planning work
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[0098] [1] To build a set of JavaWeb system, all the algorithms used in this method are provided by Java open source API, or implemented by writing Java codes according to public algorithms;
[0099] [2] Start to cover and image the regional target T, save the regional target T in the form of Polygon in the Java open source interface JST, and set the current date as StartTime;
[0100] [3] Update the status parameters of all satellites in the system, including maneuverability, storage space, carrying energy and maximum imaging duration, etc.;
[0101] [3a] Start an imaging plan Schedule[n] for imaging the regional target T, set the start time of the imaging plan Schedule[n] as ScheduleStartTime=StartTime, and end time as ScheduleEndTime=StarTime+24h;
[0102] [3b] While starting an imaging plan Schedule[n], use an independent thread to regularly update the completion status of the image processing system for the products of the regional target T, and mark the planned and succe...
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The invention relates to a method for dynamically planning coverage imaging of multiple satellites on a regional target. The method comprises the following steps: establishing an imaging plan for carrying out coverage imaging on the regional target by using a satellite set; calculating a set of independent orbit periods of all satellites; sorting elements in the set of independent orbit periods according to time, sequentially calculating the most effective coverage strip of each independent orbit period for regional target imaging, and removing the calculated independent orbit period from theset of independent orbit periods; planning a corresponding imaging task according to the most effective coverage strip of each independent orbit period, adding an instruction of the imaging task intoan instruction queue of a corresponding satellite, and waiting for annotation; updating the state parameters according to resources consumed by the satellite for executing the imaging task; and judging whether the regional target is completely covered or not, and if so, ending the coverage imaging of the regional target T. The method is high in practicability, has the optimal coverage efficiency for the regional target, and is high in executability and fault tolerance.
Description
technical field [0001] The invention relates to the technical field of aerospace remote sensing, in particular to a method for dynamically planning multiple satellites to cover and image regional targets. Background technique [0002] In satellite earth observation imaging tasks, it is difficult for a single satellite to complete coverage imaging of large-area targets within one visible opportunity. Therefore, it is often necessary to reasonably divide large-area targets before imaging task planning and decompose imaging tasks. It is a single imaging strip task that can be completed by a single satellite within a visible opportunity, and then multiple satellites cooperate to achieve coverage imaging of the entire area target. However, the existing multi-satellite imaging methods for the same area target still have the following deficiencies: [0003] [1] Existing multi-satellite imaging methods for targets in the same area are in theoretical research and lack practical feas...
Claims
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Login to View More IPC IPC(8): G06Q10/06
CPCG06Q10/06312Y02A90/10
Inventor 潘征白杨孟祥强何叶衣晓宾
Owner CHANGGUANG SATELLITE TECH CO LTD