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Method for deciding agile satellite earth observation task pretreatment scheme

A kind of earth observation and satellite technology, which is applied in the fields of electrical digital data processing, special data processing applications, instruments, etc.

Inactive Publication Date: 2014-11-12
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

[0004] For the schemes generated by different preprocessing parameters, it is necessary to select a better scheme for further planning and scheduling, but it is difficult to evaluate the pros and cons of these schemes before planning and scheduling, and only by generating meta-tasks in the scheme The statistical indicators in the scheme are used as the attributes of the scheme, and the multi-attribute decision-making method is used to make decisions. In this paper, the multi-attribute utility function method is used to sort and select the schemes

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  • Method for deciding agile satellite earth observation task pretreatment scheme
  • Method for deciding agile satellite earth observation task pretreatment scheme
  • Method for deciding agile satellite earth observation task pretreatment scheme

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Embodiment Construction

[0025] Firstly, a brief summary of the multi-attribute utility function theory is given, and then the specific steps of using the multi-attribute utility function method are given.

[0026] 1. Multi-attribute utility function theory

[0027] The multi-attribute utility function is defined as:

[0028]

（1）

[0029] in Can be a multi-attribute utility function, total utility, social welfare function or total index; is each attribute The single-attribute utility function of , is the first level of an attribute.

[0030] In order to construct the utility function, we need to ensure that each attribute satisfies preference independence and utility independence. "Preference independence" means that the decision maker's preference for a value of an attribute has nothing to do with the values ​​of other attributes. "Utility" can be understood as the preference A quantification, "utility independence" is similar to "preference independence", which means ...

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Abstract

The invention relates to a method for deciding an agile satellite earth observation task pretreatment scheme. A new target area decomposition and combination method is provided; a multi-attribute utility function is constructed according to a pretreatment method; task scheduling pretreatment schemes are sorted and selected according to the multi-attribute utility function method; a point target describing method based on 'moment-gesture' and a region target feature describing method based on time gesture vectors are provided; the describing method is utilized to provide a target decomposition and combination method in the pretreatment; for different parameter generating schemes, the optimal treatment scheme is selected through the multi-attribute utility function method.

Description

technical field [0001] The invention relates to a method for decision-making of an agile satellite earth observation task preprocessing scheme. Background technique [0002] Agile Earth Observation Satellite is a new generation of Earth Observation Satellite in my country. It has three-degree-of-freedom attitude maneuverability and high resolution. It is the development direction of Earth Observation Satellite and has important military and civilian values. Compared with traditional satellites, agile satellites can image area targets in a single pass, which improves the ability to complete the mission, but also makes mission planning more complicated. [0003] The preprocessing of agile satellite task scheduling is a basic link of problem solving. Due to the small width of agile satellites, each imaging is a strip with a fixed field of view width. For regional targets, it is necessary to use framed imaging. Therefore, the premise of agile satellite mission planning is to d...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 邢立宁袁驵贺仁杰姚锋杨振宇刘晓路王沛张雪婷义余江刘嵩李星朱剑冰郭坚汪路元
Owner NAT UNIV OF DEFENSE TECH
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