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Volume 39 Issue 1
Jan.  2013
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Journal of Beijing University of Aeronautics and Astronautics  > 2013  >  (1): 83-88.
Li Fengyu, Jiao Zongxia. Adaptive control for aircraft anti-skid braking system based on friction force model[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(4): 447-452. (in Chinese)
Citation: Du Xiaohui, Pei Jun, Zhang Lirong, et al. Differential barometric altimetry method based on mobile phone base stations[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, (1): 83-88. (in Chinese)
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Differential barometric altimetry method based on mobile phone base stations

  • National Astronomical Observatories, Chinese Academy of Science, Beijing 100012, China

  • Received Date: 14 Oct 2011
  • Publish Date: 31 Jan 2013
    Abstract
  • A differential barometric altimetry was proposed for differential measurement to solve poor elevation positioning accuracy in existing satellite navigation and positioning systems by using the existing mobile phone base station as reference. The barometric measurement data from the densely distributed mobile phone base stations would be broadcasted to the adjacent user receiver. Absolute elevation value of the user receiver would be calculated by using relative formula combining the barometric pressure values and temperature values in the mobile phone base stations with the measured point. Experimental tests indicate that the indoor elevation positioning accuracy is about 1 m and the outdoor is less than 1 m. The resolution of barometric altimetry is about 0.2 m. Three-dimensional positioning accuracy of global navigation satellite system(GNSS) increase by about 60%. This method that barometric altimetry can be taken as a constraint condition involved in the solution of measurement equations can not only compensate the poor elevation positioning accuracy, also overcome the traditional barometric altimetry depending on the weather stations where are far away from most of the user receivers. Therefore, this method can assist satellite navigation system, improve the three-dimensional positioning accuracy and solve the problem of resolution upstairs and downstairs.

     

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    • References(12)
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