Remote sensing earth observation requirement model establishment method based on domain ontology

Abstract

The invention discloses a remote sensing earth observation requirement model establishment method based on domain ontology, and aims at realizing the normalized expression of the remote sensing earth observation requirement. The remote sensing earth observation requirement model establishment method comprises the following steps: collecting the descriptive requirement information of an original industry department, and carrying out preliminary processing on the information on an aspect of grammatical form; according to industry department experience support, carrying out preliminary check on the processed requirement information on an aspect of semantics; taking one part of information which passes the check for modeling; carrying out semantic analysis on the requirement information used for the modeling, and mining requirement description elements from the requirement information; on the basis of a remote sensing specialized knowledge base, integrating the requirement description elements; judging the necessary degrees of the requirement description elements, and rejecting the element of which the necessary degree is smaller than a threshold value; carrying out category integration on the rejected elements, and refining a requirement core element from the rejected elements; defining the attribute and the attribute constraint of the requirement core element; and carrying out effectiveness check on the model.

Description

technical field [0001] The invention belongs to the technical field of remote sensing earth observation, and in particular relates to a method for establishing a remote sensing earth observation demand model based on a domain ontology. Background technique [0002] In the early stage of the development of earth observation satellites, the number of satellites is small and the requirements are simple. For the development and program demonstration of a single satellite, after repeated discussions and coordination among the management decision-making level, satellite users and strategic planning and design personnel, the satellite can basically meet the requirements of the satellite. Top-level design and mission planning requirements. However, with the rapid development of my country's earth observation technology in recent years, remote sensing earth observation has shown a trend of "surge of users" and "complex demand", and my country's remote sensing earth observation demand...

AI Technical Summary

Problems solved by technology

However, the requirements in reality are often complex and diverse. The description method of quadruples emphasizes the generality too much and lacks the specific details of the requirements description; Require

[0006] To sum up, in the field of remote sensing earth observation demand modeling, a complete and effective remote sensing earth observation demand modeling method has not been proposed so far. The existing research either does not realize the modeling, and only analyzes the characteristics of the demand; or A high-level model is built, but the model cannot guide the actual operation

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