李作虎, 郝金明, 李建文, 张成军. QZSS对GPS区域性能增强分析[J]. 武汉大学学报 ( 信息科学版), 2010, 35(1): 17-20.
引用本文: 李作虎, 郝金明, 李建文, 张成军. QZSS对GPS区域性能增强分析[J]. 武汉大学学报 ( 信息科学版), 2010, 35(1): 17-20.
LI Zuohu, HAO Jinming, LI Jianwen, ZHANG Chengjun. Analysis on QZSS Augmentation on Area Performance of GPS[J]. Geomatics and Information Science of Wuhan University, 2010, 35(1): 17-20.
Citation: LI Zuohu, HAO Jinming, LI Jianwen, ZHANG Chengjun. Analysis on QZSS Augmentation on Area Performance of GPS[J]. Geomatics and Information Science of Wuhan University, 2010, 35(1): 17-20.

QZSS对GPS区域性能增强分析

Analysis on QZSS Augmentation on Area Performance of GPS

  • 摘要: 在日本和中国中东部地区,就日本准天顶卫星系统(QZSS)对GPS导航精度增强、完好性增强以及可用性增强进行了仿真计算比较。结果表明,只有3颗卫星组成的QZSS在这些区域内对GPS提供了有效的性能增强,而且随着卫星截止角的增加,这种性能增强显得更为明显;QZSS在战时可有效降低由于部分GPS卫星失效而导致的性能恶化程度。分析结果对于我国在中部地区和东部热点地区有效利用GNSS导航资源具有指导作用。

     

    Abstract: In the areas such as Japan and eastern and middle part of China,the performance augmentations of QZSS to GPS on navigation precision,availability and integrity are simulated and compared.The results show that QZSS consist of only three satellites can provide effective augmentation to GPS in above fields.With the mask angle increasing,the performance improvements will become more obvious.The results also show that QZSS can effectively reduce the performance deterioration of GPS in the wartime,because of results from the invalidation of part satellites.The analysis results can be used as guidance for the effective application of GNSS resources in Chinese middle part and eastern key area.

     

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