An earth observation satellite mission effectiveness evaluation index system and an analysis method

Abstract

The invention relates to an earth observation satellite mission effectiveness evaluation index system and an analysis method. The system comprises a mission completion degree index, a time response degree index and a resource utilization rate index. The task fulfillment index comprises a regional target coverage rate, a total task fulfillment rate, a moving target recognition degree, a moving target tracking track fit degree, a task fulfillment benefit and a credibility of a moving target search result. The aging responsiveness index comprises a task response time and a time resolution. The resource utilization index comprises a satellite payload rate, a total satellite side swing number, a total startup time, a total startup number, a large-capacity memory occupancy rate, a ground stationand a relay satellite downlink window utilization rate. The method of the invention can fully embody the physical connection between the operation logic of the system and the indexes, and the evaluation result is intuitionistic, readable and understandable, the method of the invention is an evaluation method with practical physical significance and effectively overcomes the subjectivity and fuzziness existing universally in the efficiency evaluation process.

Description

technical field [0001] The invention relates to the field of aerospace and earth observation, in particular to an evaluation index system and analysis method for the mission effectiveness of an earth observation satellite. Background technique [0002] The construction of my country's aerospace earth observation system started relatively late, but after years of hard work by science and aerospace industry departments, with the continuous and rapid development of my country's aerospace technology in recent years, the performance of satellite platforms and spaceborne payloads has been continuously improved, and the overall technical level is comparable to that of The application ability has been greatly improved. Especially since the beginning of the 20th century, it has developed rapidly. A series of earth observation satellite systems such as land resources, ocean monitoring, meteorology, environment and disaster reduction, and high-resolution special projects have been succe...

AI Technical Summary

Problems solved by technology

[0013] First, the technical indicators of the program are relatively simple and extensive. The implementation of a satellite mission is a huge and complex system engineering, and the mission effectiveness of the entire satellite mission is involved in the various stages of mission project demonstration, scheme design, development and mission implementation. There are many evaluation factors. The evaluation indicators of this scheme mainly focus on the coverage rate, planning efficiency and space resource scheduling efficiency, which have great limitations and cannot fully meet the actual engineering task implementation needs.

[0014] Second, there is no performance analysis for the characteristics of moving targets, which cannot reflect the performance evaluation characteristics of moving targets in space earth observation tasks

[0015] Third, its quantitative analysis algorithm uses a simple weighted summation method, which has certain limitations

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