Navigation satellite integrity key point comprehensive identification method based on grey relational degree

Abstract

The invention discloses a navigation satellite integrity key point comprehensive identification method based on a grey relational degree. The invention takes the navigation satellite system as a research object and brings forward three properties of the satellite integrity key point which include node reliability, integrity and topology importance degree, and comprehensively and effectively evaluates the importance of various nodes of the navigation satellite system. The navigation satellite integrity key point comprehensive identification method comprises steps of choosing an appropriate identification index, on the basis, calculating identification index values from the angles of the topology structure, reliability and integrity, performing irrelevant screening on the identification indexes, calculating the weight values of various identification indexes, obtaining a grey relevant value of each node through quantitative calculation and identifying integrity key point. The invention overcomes the influence on the system by node pairs, overcomes the insufficient evaluation which takes the node degree as a single index, effectively identifies the integrity key point and effectively guides the design of the navigation satellite system.

Description

technical field [0001] The invention relates to a method for comprehensively identifying key points of integrity of navigation satellites, in particular to a method for comprehensively identifying key points of integrity of navigation satellites based on a grey correlation degree, and belongs to the technical field of navigation satellite systems. Background technique [0002] Integrity was first put forward in the field of combat readiness of weapons and equipment. Today, the evaluation criteria for the integrity of combat readiness of weapons and equipment have been greatly developed. Weapons and equipment are an important material basis for war and an important indicator of the level of the army's combat effectiveness. Combat readiness is the embodiment of the comprehensive support capability of equipment and combat units, and is related to the technical status of equipment from receiving mission orders, preparing to perform missions, and completing missions. The combat ...

AI Technical Summary

Problems solved by technology

Therefore, when dealing with the navigation satellite system, which requires reliability, integrity, and many network characteristics, the traditional reliability evaluation criteria and the traditional network evaluation criteria remain relatively one-sided, and cannot fully evaluate the navigation satellite system. The real state of the key points of the system is no longer applicable

If the key node selected according to the network algorithm does not have high reliability and integrity, then it does not have the ability to become a key point, then there is a problem in the selection of the network algorithm, and if only from the perspective of reliability or integrity , then, it is not sure whether nodes with high reliability or integrity must undertake the most important tasks in the network

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