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Volume 27 Issue 4
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Article Contents
Abstract
References
YANG Dongkai, WANG Ye. Numerical analysis on geometric relationship of the global navigation satellite system reflectometry[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2012, 27(4): 637-643.
Reference format: YANG Dongkai, WANG Ye. Numerical analysis on geometric relationship of the global navigation satellite system reflectometry[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2012, 27(4): 637-643.
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Numerical analysis on geometric relationship of the global navigation satellite system reflectometry

  • School of Electronic and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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  • Received Date: September 29, 2011
  • Available Online: December 30, 2020
  • Published Date: August 30, 2012
    Graphical Abstract
    • Abstract
  • The geometric relationship of the global navigation satellite system reflectometry(GNSS-R)and the factors which influence the geometry are analyzed in this paper.As the geometry of GNSS-R is the basis for its study and applications,establishing a reliable geometric model of GNSS-R helps to achieve the remote sensing applications using GNSS reflected signals.In this paper,an approximate geomeric optical model of GNSS reflected signals is established.The iso-range and iso-Doppler zones from the different path are analyzed and the iso-range line and iso-Doppler line are calculated and simulated.The changes on the annular zones over different parameters are further summarized based on the simulations.The satellite elevation angle and the altitude and the speed of the receiver are indicated to be the main reasons for the changing of the iso-range line and iso-Doppler line.At the end of each section, the valid range of annular zones and the method to improve delay-Doppler resolution are discussed.
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    • References (13)
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