Ocean oil spill fine telemetering method based on blind source separation

Abstract

The invention discloses an ocean oil spill fine telemetering method based on blind source separation. The method includes three processes: a multichannel telemetering system, a mixed spectrum blind signal separation method and spilled oil type recognition method. In the method, a multichannel spectrum observation signal X of a spilled oil sample is obtained through the telemetering system. In the mixed spectrum blind signal separation method, through a quick independent component analysis method, the multichannel spectrum observation signal X is subjected to blind signal separation to obtain a spectrum Y of a plurality of mixed components in the channels respectively, wherein the spectrum Y is the approximation of the main component S in the spilled oil sample and includes hydrocarbons, colloids, asphalts and the content information thereof. The spilled oil type recognition method includes the steps of measuring the characters of the component spectrum, matching the characters of the component spectrum with the spectrum characters of the components in a pattern bank, and further correctly recognizing the components and the contents of the spilled oil. By means of the three steps, the types and the components of the spilled oil can be accurately analyzed, thereby quickly identifying illegal oil spill sources.

Description

Technical field [0001] The invention relates to a method for identifying marine oil spill sources used in the environmental field, in particular to a refined remote measurement method for marine oil spill based on blind source separation. Background technique [0002] In recent years, marine oil spill accidents have occurred frequently. It is a complex and challenging task to analyze and identify oil spills in a timely and accurate manner, determine responsibility, trace the source of illegal oil spills, and take appropriate emergency response. . The current oil spill identification standard (GB / T21247-2007) is mostly represented by laboratory chemical identification methods represented by liquid chromatography / mass spectrometry. Although the oil can be accurately analyzed, the detection speed is slow and expensive. [0003] At present, the detection of oil spills is mainly achieved through satellites or airplanes, through SAR or optical remote sensing, and is affected by the reso...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problems of limited identifiable categories and inability to finely analyze the components in the oil spill type identification method in the prior art, and provides a marine oil spill fine-grained telemetry method based on blind source separation. Blind source decomposition is performed on multi-channel spectral data to obtain the spectral signals of the main components, and based on the main components and their content, the oil spill type and components are detected, which improves the refined oil spill detection capability

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