A Portable High Frequency Surface Wave Radar Wave Height Inversion Method

Abstract

The invention provides a portable high-frequency surface wave radar wave height inversion method which comprises the steps of firstly performing channel calibration on two monopole cross loops, and utilizing a traditional Barrick method, and obtaining a wave height inversion result at a short-distance element position; then calculating the ratio between a one-order peak and a two-order peak of the radar, and performing orientation by means of a MUSIC algorithm; and finally fitting the ratio between the one-order peak and the two-order peak through using the wave height which is obtained through a Barrick method, and obtaining the final output wave height of the radar. The portable high-frequency surface wave radar wave height inversion method increases measurement precision and measurement distance of wave height. Compared with a common one-two-order peak ratio algorithm, the method does not require calculation of a fitting coefficient by means of prior information such as float and satellite so that the wave height and the wave field can be acquired in real time.

Description

technical field [0001] The invention belongs to the technical field of high frequency ground wave radar, relates to a portable high frequency ground wave radar wave height inversion method, in particular to a method for calculating wave height based on the linear relationship between the first and second order spectrum ratio and wave height and using The traditional Barrick wave height inversion algorithm is used as the wave height inversion method of the fitting benchmark. Background technique [0002] Due to its over-the-horizon, all-time, all-weather, large-area, and high-precision characteristics, high-frequency ground wave radar is widely used in the inversion of ocean surface parameters such as flow field, wave height spectrum, and wind information. The portable high-frequency ground wave radar uses a monopole crossed ring as the receiving antenna, which greatly reduces the requirements for the erection site and simplifies installation and maintenance. The extraction ...

AI Technical Summary

Problems solved by technology

However, the inversion of wave height still stays on the traditional Barrick wave height inversion algorithm, and the inversion accuracy is relatively low. At the same time, the portable high-frequency ground wave radar still has difficulty in dividing the first and second order echo spectrum, and the beam is too wide to form an accuracy. A series of problems such as higher wave field

In recent years, some scholars have proposed a method of extracting wave height based on the first-order and second-order spectral ratio method, using the linear relationship between the first-order and second-order spectral ratio and wave height to invert the wave height, but this method requires buoy data as a fitting benchmark. To obtain the fitting coefficient, prior information of wave height needs to be provided, and the real-time performance is relatively poor

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