GPS buoy wave measuring method and wave measuring system

A technology of buoy wave measurement and GPS receiver, which is applied to radio wave measurement systems, satellite radio beacon positioning systems, measurement devices, etc., can solve the problems of increased wave observation costs, expensive sensors, and complex instruments and equipment, and achieve wave measurement The method is convenient, the hardware circuit is simple, and the effect of small volume

Inactive Publication Date: 2012-12-19
STATE OCEAN TECH CENT
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Problems solved by technology

[0006] The above-mentioned method of utilizing buoys to observe waves in the prior art uses complex instruments and equipment, and the sensors are expensive, which increases the cost of wave observation

Method used

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  • GPS buoy wave measuring method and wave measuring system
  • GPS buoy wave measuring method and wave measuring system
  • GPS buoy wave measuring method and wave measuring system

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Embodiment Construction

[0041] Combine below figure 1 To further explain the method of GPS buoy measurement:

[0042] The first acquisition of GPS satellite signals (S1) is to use the satellite signal receiving module on a single GPS receiver in the GPS buoy to receive n (3 ri , The carrier signal frequency f transmitted by each GPS satellite i According to the technical document, the carrier frequency variable df of each GPS satellite received ri Obtained by formula (1), n ​​carrier frequency variables df are thus obtained ri , I=1,2,3,...n; then the calculation of the buoy movement speed (S3) is based on the principle of Doppler velocity measurement, calculated by formula (8):

[0043] e i 1 V 1 + e i 2 V 2 + e i 3 V 3 - cΔ t R ′ = e i 1 x i ′ + e i 2 y i ′ + e i 3 z i ′ - c f i df ri , ( i = 1,2,3 , . . . . . . , n ) - - - ...

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Abstract

The invention relates to a GPS buoy wave measuring method and a wave measuring system, wherein GPS satellite signals are received from a plurality of GPS satellites by using a GPS receiver on a single-point GPS wave measuring buoy, carrier frequency variables of the GPS satellite signals are measured based on a Doppler principle, the movement speed of the buoy is calculated, and thus a sea wave spectrum and wave parameters are calculated. The wave measuring method comprises the following steps of GPS satellite signal acquisition, GPS carrier frequency variable extraction, buoy movement speed calculation, and sea wave spectrum and wave parameter calculation. The wave measuring system comprises a sea surface GPS buoy device, and a computer terminal device. The GPS buoy device comprises an antenna, a solar energy plate, a battery, and an acquisition processor. The acquisition processor comprises a GPS reception communication module and a microprocessor. The wave measuring method of the invention is simple, and the wave measuring system is convenient for installation and maintenance; the method and the system have very wide application prospects.

Description

Technical field [0001] The invention relates to ocean wave measurement technology, in particular to a buoy wave measurement method and a wave measurement system using a GPS global positioning system. Background technique [0002] Ocean observation technology is an important technical support for the development of marine resources and the protection of marine rights and interests, and is of great significance to my country's coastal defense construction and the utilization and sustainable development of marine resources. [0003] The generation and movement of ocean waves is one of the most common physical phenomena in the ocean. Wave measurement is very important for marine engineering design, marine transportation and fishing operations, marine environmental forecasting, and marine scientific research. [0004] Wave buoy is one of the most commonly used wave observation instruments at present. Observing waves with buoy is not restricted by water depth and some environmental factors...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C13/00G01S19/52
Inventor 齐占辉张锁平
Owner STATE OCEAN TECH CENT
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