Actual sea surface geometric modeling method based on multi-physics field marine environment parameters

A marine environment, multi-physical field technology, applied in the field of microwave remote sensing, to achieve the effect of high practical value

Pending Publication Date: 2022-01-11
XIAN INSTITUE OF SPACE RADIO TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, to propose an actual sea surface geometric modeling method based on multi-physics marine environment parameters, to realize the multi-scale sea surface geometric modeling of the actual ocean environment, and finally to solve the complex ocean environment. Obtaining the Mean Value of Clutter Amplitude

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  • Actual sea surface geometric modeling method based on multi-physics field marine environment parameters
  • Actual sea surface geometric modeling method based on multi-physics field marine environment parameters
  • Actual sea surface geometric modeling method based on multi-physics field marine environment parameters

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specific Embodiment

[0167] The invention can be applied to actual sea surface geometric modeling based on the actual ocean environment elements based on satellite data. The result of the actual sea surface geometric model contains a variety of actual ocean environment elements, which can be combined with the sea surface electromagnetic scattering algorithm to simulate the mean value of sea clutter amplitude, and can be used as an important supplementary reference material for ocean big data. This method solves the complex marine environment by establishing a sea surface time series sample database of an instantaneous tension wave sea surface model that combines wind speed and wind direction, and a gravity wave sea surface model that considers wave height, wave direction, and wave period, combined with the sea surface double-scale electromagnetic scattering theory algorithm. The problem of obtaining the average value of the clutter amplitude in the sea, the specific implementation is as follows:

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Abstract

The invention relates to an actual sea surface geometric modeling method based on multi-physics field marine environment parameters, and belongs to the field of microwave remote sensing. The method comprises the following steps: 1, acquiring multi-physics field marine environment parameters of a region of interest; 2, calculating a tension wave energy spectrum Eshort(k, phi), and calculating a tension wave sea surface fluctuation height hshort(xs, ys, t); 3, calculating a gravity wave energy spectrum Sg(f, phi), and calculating a gravity wave sea surface comprehensive fluctuation height hgravitity(xg, yg, t); and 4, calculating the comprehensive fluctuation height htotal(xs, ys, t) of the sea surface, and realizing actual sea surface geometric modeling of multi-physical field marine environment parameters. Multi-scale sea surface geometric modeling of an actual marine environment is realized, and finally the problem of obtaining the sea clutter amplitude mean value in a complex marine environment is solved.

Description

technical field [0001] The invention belongs to the field of microwave remote sensing, and relates to an actual sea surface geometric modeling method based on multi-physics field marine environment parameters. Background technique [0002] The traditional research on the electromagnetic scattering characteristics of the sea surface is generally based on a well-developed theoretical model of the wind wave spectrum, which does not fully consider the elements of the actual marine environment. The input parameters are generally wind speed and wind direction, which do not conform to the real sea surface state. The echo information obtained by the existing sea clutter amplitude mean model cannot fully reflect the real state of the sea surface, such as wave height, wave direction and wave period, etc.; therefore, the electromagnetic scattering characteristics of the real sea surface are not fully considered, and there is a technical Bottlenecks and cognitive level limitations. Co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/10G06F30/20G06F119/14
CPCG06F30/10G06F30/20G06F2119/14
Inventor 吴涛王旭艳李财品李渝段崇棣田敏施倩
Owner XIAN INSTITUE OF SPACE RADIO TECH
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