A device for joint inversion of sea surface wind field and ocean wave
A sea surface wind field and joint inversion technology, applied in the direction of measurement devices, radio wave reflection/reradiation, special data processing applications, etc., can solve problems such as repeated input, time-consuming calculations, inaccurate inversion results, etc., to achieve Accurate and efficient feedback, the effect of improving accuracy
Inactive Publication Date: 2017-10-17
ZHEJIANG OCEAN UNIV
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[0007] In order to solve the problems that the single inversion method in the prior art requires repeated input of external wind field information, consumes redundant computing time, and inaccurate inversion results, the embodiment of the present invention provides a control method and device for a telepresence conference
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[0056] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0057] figure 1 It is a flow chart of a method for joint inversion of sea surface wind field and ocean wave provided in the embodiment of the present invention. The embodiment of the present invention is based on the use of synthetic aperture radar technology, see figure 1 , the method includes:
[0058] S101: Perform radiometric calibration on the synthetic aperture radar image in the wind field database, and filter the calibrated image to obtain a filtered image.
[0059] Specifically, see figure 2 , the specific process of S101 includes:
[0060] S1011: performing radiometric calibration on the synthetic aperture radar image in the wind direction database,
[0061] Specifically, the radiometric calibration of synthetic aperture...
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The invention discloses a device for joint inversion of sea surface wind field and ocean wave. The device includes: a calibration module, used for radiation calibration of synthetic aperture radar images in a wind field database; a segmentation module, used for The filtered image is divided according to the preset size to obtain several sub-images; the interpolation calculation module is used to obtain the external wind direction information by human-computer interaction, and obtain the wind direction of the corresponding sub-image; the inversion module is used to invert to obtain the sea surface wind direction field; the separation processing module is used to input the sea surface wind field, and adopts the wave number separation method to separate to obtain the wind wave image spectrum and the surge wave image spectrum of the synthetic aperture radar image; the joint inversion module is used for joint inversion processing to obtain the obtained The wave spectrum is obtained to obtain the wave elements. It avoids repeated input of external information, makes the feedback of SAR sea surface wind field more accurate and efficient, ensures that the wind field and ocean waves have the same spatial resolution, and improves the accuracy of the inversion results.
Description
technical field [0001] The invention relates to the technical field of synthetic aperture radar, in particular to a device for processing joint inversion of sea surface wind field and sea wave. Background technique [0002] With the development of marine resources and frequent maritime activities, such as the development of marine transportation and sea fishing, the attention of marine accidents has also increased. Maritime accidents will bring huge disasters to the coastal countries of the world politically, economically and militarily. They will not only cause casualties and property losses, but also bring adverse effects on social development. Maritime search and rescue work is also increasingly favored by coastal countries. Therefore, it is indispensable information for people to carry out marine sports to obtain the wind field and wave conditions on the sea surface. [0003] However, the traditional observation methods of sea surface wind field and ocean waves are main...
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IPC IPC(8): G06F19/00G01S13/90G06F17/30
Inventor 邵伟增孙建孙展凤
Owner ZHEJIANG OCEAN UNIV