INVERSION OF IONOSPHERIC ELECTRON DENSITY BASEDON CHAPMAN FUNCTION
1)College of Geomatics, Shandong University of Science and Technology, Qingdao 266510
Abstract Using the Chapman function and the ionosphere inversion methods and processes combined with the spherical harmonic function. The ionospheric electron density is calculated by using the data measured from the GPS CORS in the Chinese region under the static subsolar. The delays through the ionosphere calculated are compared with the known data and the RMSE of residuals is 0.311 m. The ionospheric electron density variations of the vertical structure and the certain height level of ionosphere are also analyzed. The results show that from the residuals analysis and the electron density trend, the accuracy of the electron density calculated with the method is high and it can be more intuitive to reflect the consistency of the electron density changes between different layers of ionosphere.
Key words ：
GPS
ionosphere
Chapman function
spherical harmonic function
electron density
Received: 27 May 2012
Published: 18 April 2013
Cite this article:
Liu Wei,Zheng Zuoya,Guo Ying et al. INVERSION OF IONOSPHERIC ELECTRON DENSITY BASEDON CHAPMAN FUNCTION[J]. jgg, 2013, 33(2): 120-123.
Liu Wei,Zheng Zuoya,Guo Ying et al. INVERSION OF IONOSPHERIC ELECTRON DENSITY BASEDON CHAPMAN FUNCTION[J]. jgg, 2013, 33(2): 120-123.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2013/V33/I2/120
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