The invention provides a
sea surface wind direction extraction method based on a ship-borne high-frequency ground wave beyond
visual range radar, belongs to the field of ocean
remote sensing, and solves the problems that an existing
sea surface wind direction extraction method is small in detection range and has no continuity, and the
system is complicated. The
sea surface wind direction extraction method comprises the following specific steps: obtaining a first-order sea
clutter widening spectrum in a distance door by using a single receiving
array element; determining corresponding positive and negative
Bragg peak values and a spatial resolution of a sea
clutter incidence direction according to a first-order sea
clutter space-hour distribute property; obtaining a sea surface
wind direction according to the relative strength of the positive and negative
Bragg peak values; applying the sea surface
wind direction to a resolution unit of each sea area in the distance door and extracting the wind directions of all the sea areas in the distance door; comparing the sea surface wind directions of the resolution units of the adjacent sea areas and eliminating
wind direction blurs to obtain the sea surface wind direction of the distance door; and repeating the steps until the sea surface wind directions of all the distance
doors are obtained. The sea surface wind direction extraction method based on the ship-borne high-frequency ground wave beyond
visual range radar is used for monitoring the sea environment.