Sea data processing realization method based on low-altitude sounding rocket

Abstract

The invention relates to a sea data processing realization method based on a low-altitude sounding rocket. The method comprises the following steps: a data scope is limited, a landing phase point of the sounding rocket is extracted, the landing phase point of the sounding rocket is determined, according to phenomenon of linear change of air pressure at a vertical direction with height, a highest point of the rocket is a lowest point of the air pressure, an air pressure gradient detection method is employed to determine a start point of the decrease phase, and the landing phase data is extracted; and an observation data stabilization point of the landing phase is continuously determined; the data is subjected to Rendal error control, whether a certain essential factor sequence in the observation data is in a reasonable value range is determined, a moving average method is used for filtering the essential factor to obtain a novel essential factor sequence, by comparing a relation betweena mean square deviation K of the corresponding essential factors before and after filtering and m times of mean square deviation, exception handling is carried out on the observation data, and an interpolation is used for substituting an abnormal value. The method can increase the quality of the sea data.

Description

technical field [0001] The invention belongs to the field of data processing, and relates to a data processing method for ocean data detection equipment—low-altitude sounding rockets. Background technique [0002] At present, the demand for marine environment informatization is increasing, and the new generation of marine survey equipment has the characteristics of high observation accuracy, short sampling interval, large amount of information, and easy use. Among them, the low-altitude sounding rocket is a sounding device used to detect the environmental parameters of the ocean-atmospheric boundary layer and the mixed layer. The sensors carried on the sounding instrument can detect atmospheric environmental parameters such as temperature, air pressure, and relative humidity. Low-altitude sounding rockets are usually launched on ships. The rocket launch altitude is about 1,000 meters. After passing the highest point, the parachute opens and sends data stably, once every seco...

AI Technical Summary

Problems solved by technology

However, at present, the quality control and processing methods of the data collected by low-altitude sounding rockets are not perfect, and the research on its scientific detection data and auxiliary engineering data still only stays in the overall system design, which affects the processing results and limit its application prospects

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