Navigation Satellite's Lifetime Model and Optimization Design

Abstract:

The global navigation satellite system (GNSS) is an important infrastructure of the space-time positioning; not only plays an momentous role in the building of national defense and national economy, but also the world's major competitive battleground of space powers, space technology and its applications. Accurately grasp the characteristics of the life of the GNSS, redundancy of key components to establish a practical satellite program, is one of the prerequisites of the satellite lifetime assurance measures. In this paper, we build the satellite lifetime grid model based on the satellite key components lifetime degradation models, optimize the key components redundancy design scheme combining genetic algorithm. To guarantee the lifetime of the entire star, optimize the satellites cost, provide the theory support of decomposition and optimization of life indicators for GNSS.

• Periodical: Applied Mechanics and Materials (Volumes 513-517)
• Pages: 4346-4351
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.513-517.4346
• Online since: February 2014
• Authors: Hui Zeng*, Xue Wen Xia, Zheng Gao Liu, Lei Wu
• Keywords: Genetic Algorithm (GA), Global Navigation Satellite System (GNSS), Lifetime, Redundancy

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