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Investigation on global positioning system signal scattering and propagation over the rough sea surface |
Yang Chao(杨超)†, Guo Li-Xin(郭立新), and Wu Zhen-Sen(吴振森) |
School of Science, Xidian University, Xi'an 710071, China |
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Abstract This paper is devoted to the study of polarization properties, scattering properties and propagation properties of global positioning system (GPS) scattering signal over the rough sea surface. To investigate the polarization and the scattering properties, the scattering field and the bistatic scattering coefficient of modified Kirchhoff approximation with using the tapered incident wave is derived in detail. In modeling the propagation properties of the GPS scattering signal in the evaporation duct, the initial field of parabolic equation traditionally computed by the antenna pattern with using fast Fourier transform (FFT) is replaced by the GPS scattering field. And the propagation properties of GPS scattering signal in the evaporation duct with different evaporation duct heights and elevation angles of GPS are discussed by the improved discrete mixed Fourier transform with taking into account the sea surface roughness.
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Received: 21 July 2009
Revised: 20 November 2009
Accepted manuscript online:
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PACS:
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93.85.Pq
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(Remote sensing in exploration geophysics)
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92.60.Ta
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(Electromagnetic wave propagation)
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Fund: Project supported by the National
Natural Science Foundation of China (Grant No.~60971067), the
Specialized Research Fund for the Doctoral Program of Higher
Education, China (Grant No.~20070701010). |
Cite this article:
Yang Chao(杨超), Guo Li-Xin(郭立新), and Wu Zhen-Sen(吴振森) Investigation on global positioning system signal scattering and propagation over the rough sea surface 2010 Chin. Phys. B 19 054101
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