Stratum chromatography method by synthetic aperture

Abstract

The invention provides a stratum chromatography method by synthetic aperture, comprising the following steps: first, performing the low frequency broadband signal pulse compression treatment to obtain the high resolution at deep dimension and enough stratum penetration properties; and then, performing synthetic aperture treatment on the sea water and seabed laying data with different sound speeds to obtain the high resolution at navigation dimension; at last, solving the fuzzy problem of the interface by the layering two-dimensional forward normalization post-processing, and further improving the resolution for the seabed stratum. The invention has the advantages that the technical invention successfully applies the synthetic aperture technique to the field of the stratum chromatography; the invention performs the seabed stratum chromatography by the synthetic aperture processing method which applies different sound speeds to different layer datas to improve the resolution of the stratum chromatography system at the navigation dimension; meanwhile, the invention performs layering two-dimensional forward normalization post-processing on the basis of the synthetic aperture treatment to further solve the fuzzy problem of the interface and improve the resolution of the stratum.

Description

technical field [0001] The invention belongs to the new technology field of seabed stratum detection and marine survey, and mainly relates to a synthetic aperture stratum tomography method. Background technique [0002] The ocean is rich in mineral resources, and understanding the structure of the seabed is very important for marine exploration (exploring oil, natural gas, etc.); at the same time, the ocean is also a platform for us to carry out various maritime activities. Embankment platform; submarine pipeline laying, tunnel opening, etc.), submarine threat detection (submarine volcano distribution structure, buried mine layout, etc.) are all crucial. [0003] Seabed stratigraphic tomography is a geological analysis technique to understand the sedimentary sequence and stratigraphic characteristics of seabed strata through corresponding methods and means. At present, drilling and sampling analysis are the most commonly used methods to obtain stratigraphic information. How...

AI Technical Summary

Problems solved by technology

At present, there is no mature seabed stratigraphic tomography system in the world. The shallow section system is widely used. The shallow section system is faced with the problem of insufficient navigation-dimensional imaging resolution, and cannot distinguish some small targets or fine stratum textures. Therefore, the realization of The key to submarine strata tomography is to break through the limitation of imaging resolution

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