Wave and tide measuring method based on Beidou ground-based augmentation system

Abstract

The invention discloses a wave and tide measuring method based on a Beidou ground-based augmentation system. The wave and tide measuring method based comprises the steps of: installing a GNSS receiver and a differential data communication module in a buoy body; calculating spatial position coordinates of the buoy body through GNSS satellite signals as well as navigation signal correction and auxiliary positioning signals acquired from the Beidou ground-based augmentation system; and calculating wave and tide information in the ocean according to the spatial position coordinates of the buoy body. The wave and tide measuring method based further comprises the steps of acquiring the navigation signal correction and the auxiliary positioning signals, calculating position coordinates of the buoy body, separating the wave information from the tide information, calculating wave parameters and calculating tide parameters. The wave and tide measuring method disclosed by the invention is simple and convenient, is high in wave and tide measurement accuracy, is stable and reliable, and has broad application prospect.

Description

technical field [0001] The invention relates to ocean measurement technology, in particular to a method for measuring ocean waves and tides by using the Beidou ground-based augmentation system. Background technique [0002] Ocean wave data and tide data are important elements of marine environment observation. The refined observation and forecast of ocean waves and tides is of great significance to disaster prevention and mitigation and post-disaster assessment. my country has a huge demand for wave measuring instruments and tide measuring instruments . [0003] The traditional tide measurement method needs to build a tide well, which is a special building built in the sea. It needs to choose a location in the water with excellent hydrogeographical conditions and convenient for offshore construction. Reinforced concrete, steel pipes, and hard plastic pipes are used for construction. Large quantities of materials such as glass fiber reinforced plastics and cast iron pipes, th...

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Problems solved by technology

[0003] The traditional tide measurement method needs to build a tide well, which is a special building built in the sea. It needs to choose a location in the water with excellent hydrogeographical conditions and convenient for offshore construction. Reinforced concrete, steel pipes, and hard plastic pipes are used for construction. The tide wells are bulky and complicated to construct; the traditional tide measurement method consumes a lot of manpower, material resources, and financial resources, and can only measure the tide at a fixed position of the tide well, and cannot move to measure other Tide data for location

[0004] The traditional wave measuring buoy is equipped with an acceleration sensor inside, and uses the principle of gravitational acceleration to measure waves. The acceleration data is integrated twice to obtain the wave data, and the noise error data in the acceleration data is also accumulated and mixed into the wave data after two integrations. , so that the measurement error of the wave data increases and the measurement accuracy decreases

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