Multi-level microwave synthetic aperture calibration device and method for sea surface temperature detection

Abstract

The invention provides a multi-level microwave synthetic aperture calibration method and system for sea surface temperature detection. The method comprises the following steps of establishing a mapping relationship between infrared sea surface temperature remote sensing data obtained through infrared detection and sea surface temperature microwave data obtained through microwave detection, obtaining an error distribution rule of the sea surface temperature microwave data based on the infrared sea surface temperature remote sensing data of the target precision and the mapping relationship, andcalibrating the sea surface temperature microwave data by applying an error distribution rule to obtain all-time all-weather sea surface temperature remote sensing data. Infrared sea surface temperature remote sensing data of microwaves at the same time, in the same space and in the same path are obtained through the refrigeration infrared detector assembly, a microwave error distribution rule isobtainedon sunny days, the rule is applied on a cloudy day to calibrate sea temperature products, microwave remote sensing all-time and all-weather detection advantages are integrated, and the infrared sea surface temperature detection precision is high, product-level sea surface temperature calibration is realized, and the detection precision and the resolution of synthetic aperture sea surface temperature microwave remote sensing are improved.

Description

technical field [0001] The invention relates to sea surface temperature, in particular to a multi-level microwave comprehensive aperture calibration device and method for sea surface temperature detection. Background technique [0002] Sea surface temperature is obtained mainly through traditional sea surface measurements and inversion of satellite remote sensing data. Traditional sea surface temperature measurement mainly relies on ships, buoys, etc. The time span of these data acquisitions is long and the measurement accuracy is relatively high, but the distribution is discrete and uneven, which cannot meet actual needs. [0003] Since the launch of the first meteorological satellite in the late 1970s, people have tried to obtain sea surface temperature remote sensing data through remote sensing technology. The methods of obtaining sea surface temperature remote sensing data through remote sensing methods mainly include thermal infrared detection and microwave detection. ...

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Problems solved by technology

However, in the prior art, there is no scheme that combines microwave remote sensing and in

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