基于马尔可夫过程的GNSS星座可用性评估

doi:10.3969/j.issn.1001-506X.2017.04.17

系统工程与电子技术

基于马尔可夫过程的GNSS星座可用性评估

王尔申1,2, 张晴1, 曲萍萍1, 蓝晓宇1, 庞涛1, 姜毅3

1. 沈阳航空航天大学电子信息工程学院, 辽宁沈阳 110136; 2. 沈阳航空航天大学辽宁省通用航空重点实验室, 辽宁沈阳 110136; 3.大连海事大学信息科学技术学院, 辽宁大连 116026

出版日期:2017-03-23 发布日期:2010-01-03

GNSS constellation availability evaluation method based on Markov chain

WANG Ershen1,2, ZHANG Qing1, QU Pingping1, LAN Xiaoyu1, PANG Tao1, JIANG Yi3

1. School of Electronic and Information Engineering, Shenyang Aerospace University, Shenyang 110136, China;2. Liaoning General Aviation Key Laboratory, Shenyang Aerospace University, Shenyang 110136, China;3. Information Science and Technology College, Dalian Maritime University, Dalian 116026, China

Online:2017-03-23 Published:2010-01-03

摘要/Abstract

摘要：

卫星导航的星座可用性是评价导航系统性能的重要指标之一。基于马尔可夫过程建立了同时考虑卫星故障率和修复率的单星可用性模型,结合卫星的备份情况提出了空间信号层和服务层的星座可用性评估方法模型。基于上述评估模型,结合大量实测数据分析了空间信号层和服务层的星座可用性概率。结果表明:全球定位系统(global positioning system, GPS)星座可用性评估模型是有效的,GPS星座可用性符合其系统性能规范。提出的星座可用性评估方法对北斗卫星导航系统的全球化建设及其可用性评估有一定的参考价值。

Abstract:

The constellation availability of satellite navigation system is one of the important indexes when evaluating the satellite navigation system performance. The satellite availability model based on Markov chain is set up, and the satellite failure rate and repair rate are taken into account in the model. Moreover, the signal in space (SIS) and service constellation availability evaluation models are proposed by combining with the backup satellites. According to the real measured data of global positioning system (GPS), SIS and service constellation availability are verified. The results demonstrate that the proposed evaluation models are effective and the performance conform GPS performance standards. Meanwhile, the satellite availability and constellation availability evaluation methods are instructive for the study of globalization construction and availability evaluation of BeiDou navigation satellite system.

王尔申, 张晴, 曲萍萍, 蓝晓宇, 庞涛, 姜毅. 基于马尔可夫过程的GNSS星座可用性评估[J]. 系统工程与电子技术, doi: 10.3969/j.issn.1001-506X.2017.04.17.

WANG Ershen, ZHANG Qing, QU Pingping, LAN Xiaoyu, PANG Tao, JIANG Yi. GNSS constellation availability evaluation method based on Markov chain[J]. Systems Engineering and Electronics, doi: 10.3969/j.issn.1001-506X.2017.04.17.

基于马尔可夫过程的GNSS星座可用性评估

GNSS constellation availability evaluation method based on Markov chain

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