Anisotropic sea surface radar back scattering simulation method and system

A technology of backscattering coefficient and backscattering, which is applied in the field of marine information and can solve the problems of difficult realization and complicated calculation process.

Active Publication Date: 2019-04-05
中国人民解放军61741部队
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Problems solved by technology

[0005] However, most of the existing sea surface radar backscatter models based on small slope approximation use the full wave number wave spectrum to describe the sea surface, the calculation process is complicated and the implementation is relatively difficult.

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  • Anisotropic sea surface radar back scattering simulation method and system
  • Anisotropic sea surface radar back scattering simulation method and system
  • Anisotropic sea surface radar back scattering simulation method and system

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Embodiment Construction

[0043] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0044] Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art w...

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Abstract

The invention provides an anisotropic sea surface radar back scattering simulation method and system. The method comprises the steps of: observing a data sample according to a plurality of satellite radars, carrying out fitting calculation on parameters in a to-be-configured anisotropic sea surface radar back scattering model which is established on the basis of a small slope approximation method,so as to obtain a configured anisotropic sea surface radar back scattering model, in the model, expressing asymmetric influences, on radar back scattering coefficients, of along wind and dead wind through a deflection function, and expressing autocorrelation of a sea surface height by adoption of an index-like type function; and obtaining data of a to-be-simulated field, and calculating and outputting a target radar back scattering coefficient corresponding to the data of the to-be-simulated scene according to the configured anisotropic sea surface radar back scattering model. According to the method and system, the characteristics of anisotropic sea surfaces can be truly reflected, and the calculation precision and calculation efficiency are both reasonably considered, so that the methodand system have important application value in the aspects of satellite-borne radar parameter design, sea surface wind field inversion and the like.

Description

technical field [0001] The present application relates to the technical field of marine information, in particular, to an anisotropic sea surface radar backscattering simulation method and system. Background technique [0002] The ocean is one of the key components of the Earth's climate system, and it plays a significant modulating role in the formation of the mean climate state and climate change at various scales. Monitoring the ocean is critical to understanding ocean-atmosphere interactions and studying global climate change. [0003] Spaceborne radar has become an important tool for marine environment monitoring due to its advantages of all-weather, all-time, and high spatial coverage. The information obtained, such as sea surface wind field, currents, and waves, is widely used in ocean dynamics modeling and numerical weather forecasting. , and global climate change. The backscatter coefficient of the sea surface measured by radar reflects the roughness of the sea su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/95G01S7/41
CPCG01S7/41G01S13/95Y02A90/10
Inventor 周旋周江涛刘春笑马文韬万雷赵亚明张春华赵文斌李红林姚小海
Owner 中国人民解放军61741部队
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