Volume 40 Issue 3
May  2020
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Article Navigation >  Chinese Journal of Space Science  > 2020  >  40(3): 341-348
XU Longxia, LI Xiaohui, HE Lei. Performance Analysis of BDS Single Frequency Ionosphere Model[J]. Chinese Journal of Space Science, 2020, 40(3): 341-348. doi: 10.11728/cjss2020.03.341
Citation: XU Longxia, LI Xiaohui, HE Lei. Performance Analysis of BDS Single Frequency Ionosphere Model[J]. Chinese Journal of Space Science, 2020, 40(3): 341-348. doi: 10.11728/cjss2020.03.341
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Performance Analysis of BDS Single Frequency Ionosphere Model

doi: 10.11728/cjss2020.03.341

  • 1. Key Laboratory of Precision Navigation Positioning and Timing, National Time Service Center, Chinese Academy of Sciences, Xi'an 710600;

  • 2. University of Chinese Academy of Sciences, Beijing 100049

  • Received Date: 2019-05-15
  • Rev Recd Date: 2019-08-01
  • Publish Date: 2020-05-15
    Abstract
  • With the construction of BDS-3, the single-frequency ionospheric model of BDS-2 (BDSKlob) which is only suitable for the correction of ionosphere delay in Chinese area is no more applicable. The BDGIM model is proposed for the correction of ionosphere delay globally in BDS-3. The performance of BDGIM model is compared with BDSKlob and GPSKlob (the ionospheric model of GPS) in different areas for day and night in the time period of 1-31 March 2019. The results show that the correction ratio of BDGIM model of BDS-3 is over 75% in China while that of BDSKlob is 59%. Its global correction ratio is 60% which is superior to the correction ratio 49% of GPSKlob. As far as the Root Mean Square (RMS) of ionosphere is concerned, the global average value of BDGIM model is less than that of GPSKlob. The RMS of vertical ionospheric error of BDGIM is less than 6 TECU in all the other areas excluding the high latitude area of south hemisphere.

     

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