BDS/GPS/LEO triple-frequency uncombined precise point positioning and its performance in harsh environments
作者: Qing ZhaoShuguo PanChengfa GaoWang GaoYan Xia
作者单位: 1School of Transportation, Southeast University, Nanjing 210096, China
2School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China
3Key Laboratory of Micro-Inertial Instrument and Advanced Navigation Technology, Ministry of Education, Nanjing 210096, China
刊名: Measurement, 2020, Vol.151
来源数据库: Elsevier Journal
DOI: 10.1016/j.measurement.2019.107216
关键词: Precise point positioning (PPP)Low earth orbit (LEO)Harsh environmentsTriple-frequencyTime to first fix (TTFF)Positioning accuracy
英文摘要: Abstract(#br)Precise point positioning (PPP) usually takes a few tens of minutes to achieve centimeter-level positioning accuracy, and reliable ambiguity resolution also requires a relatively long observation time. In addition, the time required will be longer in harsh environments such as urban and canyons. These problems limit the application of PPP. Currently, low earth orbit (LEO) enhanced Global Navigation Satellite System (GNSS) can increase the number of visible satellites and optimize observation structure, which is expected to improve the positioning performance of GNSS-only PPP under complex conditions. In this paper, the performance of LEO/GNSS combined PPP in harsh environments is evaluated initially. First, triple-frequency uncombined PPP model is developed. Then, a LEO...
全文获取路径: Elsevier  (合作)
影响因子:1.13 (2012)

  • positioning 位置蝶
  • precise 精密的
  • GPS general problem solver
  • orbit 轨道
  • point 
  • uncombined 未结合的
  • accuracy 准确度
  • BDS 波特
  • first 第一
  • frequency 频率