Ocean surface specular-point scattering model based on the Gram-Charlier distribution

doi:10.7523/j.issn.2095-6134.2010.5.010

›› 2010, Vol. 27 ›› Issue (5): 645-650.DOI: 10.7523/j.issn.2095-6134.2010.5.010

• Research Articles • Previous Articles Next Articles

Ocean surface specular-point scattering model based on the Gram-Charlier distribution

WANG Ke^1,2,3, HONG Jun^1,2, MING Feng^1,2, DING Yan^1,2,3

1. Key Laboratory of Spatial Information Processing and Application System Technology, Chinese Academy of Sciences, Beijing 100080, China;
2. Institute of Electronics, Chinese Academy of Sciences, Beijing 100080, China;
3. Graduate University of the Chinese Academy of Sciences, Beijing 100049, China

Received:2009-12-23 Revised:2010-02-09 Online:2010-09-15

Abstract

Abstract:

On the basis of the theories of the ocean surface specular-point scattering and slopes distribution and by applying the Gram-Charlier distribution of ocean surface slopes to make a model for the ocean surface specular-point scattering and taking wind speed at 10m above ocean surface as basis, we establish a calculation method for the radar backscattering cross-section of the ocean surface specular-point scattering model based on the Gram-Charlier distribution. By comparing with measured data, we verify accuracy and applicability of the ocean surface specular-point scattering model based on the Gram-Charlier distribution. By simulation study, we summarize the variety regulations of the ocean surface specular-point scattering systematically under different conditions that include wind speed, wind direction, polarization, wave band, angle of incidence, azimuth and so on, and have function of guiding practical application.

Key words: ocean surface, specular-point scattering, the Gram-Charlier distribution, model study, radar remote sensing

CLC Number:

TN011

WANG Ke, HONG Jun, MING Feng, DING Yan. Ocean surface specular-point scattering model based on the Gram-Charlier distribution[J]. , 2010, 27(5): 645-650.

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Ocean surface specular-point scattering model based on the Gram-Charlier distribution

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