Buoy-type high frequency ground-wave radar system

A buoy-type high frequency ground-wave radar system, comprising:

• a buoy platform, a sky-wave emitting subsystem, a ground-wave radar subsystem and an attitude measurement subsystem;
• the system being useful for extracting the maritime wind, wave, and current from inversion of ground-wave radar;
• wherein the buoy platform is the maritime carrier of the ground-wave radar;
• wherein the sky-wave emitting subsystem is disposed at a shore base to emit high frequency electromagnetic wave, and the high frequency electromagnetic wave is refracted to the sea surface via the ionosphere, reflected via the sea surface, and received by the ground-wave radar subsystem as sky-wave signal;
• wherein the attitude measurement subsystem conducts real-time measurement to obtain the attitude data of the buoy platform;
• wherein the ground-wave radar subsystem uses ground-wave radar to receive ground-wave signal on one hand and receive sky-wave signal on the other hand;
• wherein the ground-wave signal is directly processed to form ground-wave Doppler spectrum;
• wherein the sky-wave signal is processed to form sky-wave Doppler spectrum after receiving an ionosphere disturbance compensation in the frequency domain;
• the ground-wave radar subsystem reconstructs an actual geographic coordinate system on the basis of the attitude data measured by the attitude measurement subsystem, and obtains wind wave current data by conducting inversion on ground-wave Doppler spectrum or sky-wave Doppler spectrum in the reconstructed actual geographic coordinate system;
• and
• wherein the sky-wave emitting subsystem and the ground-wave radar subsystem conduct time synchronization via GPS synchronous networking;
• wherein the buoy platform comprising a main floating body and an instrument cabin, and wherein the main floating body comprises three connecting floating body frames, twelve sets of connecting bridges and six buoyancy cabin bodies;
• wherein the three floating body frames are arranged in parallel, and a group of six of the twelve sets of connecting bridges are respectively used between two adjacent floating body frames for mutual connection, and the two ends of the bottom of each floating body frame are fixed with two buoyancy cabin bodies;
• wherein the floating body frames and the connecting bridges are made of stainless steel;
• wherein the buoyancy cabin body includes a steel frame as the supporting framework, a surface including glass fiber reinforced plastics, and an interior filled with a buoyancy material;
• and
• wherein the instrument cabin is disposed on the main floating body.