A calculation method, terminal and measurement system for ocean wave height

A calculation method and technology of ocean waves, which can be used in radio wave measurement systems, measurement devices, reflection/re-radiation of radio waves, etc., and can solve problems such as effective wave height inversion.

Active Publication Date: 2021-06-08
CSSC MARINE TECH CO LTD
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Problems solved by technology

Therefore, this method is suitable for fixed land-based measurement equipment, but in the shipboard application scenario, when the ship sails into an unknown sea area, the effective wave height cannot be correctly inverted without the calibration data of the corresponding sea area

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  • A calculation method, terminal and measurement system for ocean wave height
  • A calculation method, terminal and measurement system for ocean wave height
  • A calculation method, terminal and measurement system for ocean wave height

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the descriptio...

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Abstract

The invention discloses a method for calculating the wave height of sea waves. The method includes: adjusting the pulse width of the radar to be the minimum, collecting the first image sequence, and recording the first true heading angle sequence and the first latitude and longitude coordinate information sequence of the ship; selecting the image Inversion area, inversion area motion compensation; ocean wave information inversion, to obtain the wavelength of the main wave wave; adjust the pulse width of the radar, so that the resolution of the radar is equal to the wavelength of the main wave wave, collect the second image sequence, and record the second wave of the ship The true heading angle sequence and the second latitude and longitude coordinate information sequence; select the image inversion area, and perform motion compensation in the inversion area; calculate the average radar cross-sectional area of ​​the sea surface in the inversion area; and calculate the effective wave height of the ocean wave. The beneficial effect of the invention is that only one calibration is required to retrieve the effective wave height in all sea areas.

Description

technical field [0001] The invention belongs to the technical field of ocean wave remote sensing, and in particular relates to an ocean wave height calculation method, a terminal and a measurement system. Background technique [0002] The microwave radar remote sensing test method is a new type of ocean wave telemetry method that has emerged in the world for more than 20 years. It has the advantages of low cost, all-day, all-weather, small platform size, and can sail with ships. [0003] The technical scheme of using microwave radar to remotely measure ocean waves is briefly described as follows: microwave radar collects a set of radar image sequences in chronological order, performs three-dimensional Fourier transform to obtain image spectrum, and then converts the image spectrum into wave number spectrum through modulation transfer function, and then Estimate the current velocity, wave direction, and wavelength data of ocean waves. For the estimation of the effective wav...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/89G01S7/41
CPCG01S7/415G01S13/89
Inventor 张启明陈祝明王文星王鸿显徐畅于海涛保骏
Owner CSSC MARINE TECH CO LTD
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