Shallow-sea water depth radar remote sensing method

Abstract

The invention discloses a shallow-sea water depth radar remote sensing method. The shallow-sea water depth radar remote sensing method comprises the following steps: acquiring a multi-view SAR remotesensing image of a to-be-detected area, wherein the multi-view SAR remote sensing image comprises q single-view SAR remote sensing images, and each single-view SAR remote sensing image contains imagecharacteristics of a sea wave transmitted from a deep sea area to a shallow sea area in the to-be-detected area; calculating each single-view SAR remote sensing image to obtain a shallow-sea water depth detection result in the shallow sea area; performing tidal correction on the shallow-sea water depth detection result obtained from each single-view SAR remote sensing image; according to a predetermined rule, element by element, forming a one-dimensional shallow-sea water depth array containing q elements based on each corrected shallow-sea water depth detection result, and according to a Kalman filter algorithm, filter each shallow-sea water depth array, wherein the numerical value of the last element in each filtered shallow-sea water depth array is used as the depth of the shallow sea area. By the shallow-sea water depth radar remote sensing method, the accuracy of shallow-sea water deep detection can be improved.

Description

technical field [0001] The invention relates to the technical field of remote sensing detection, and more specifically, to a shallow sea depth radar remote sensing detection method. Background technique [0002] Shallow sea underwater topography is one of the important marine environmental parameters, and ocean bathymetry is an important content of dynamic monitoring and management of marine environment. Traditional marine bathymetry is mainly based on shipborne acoustic detection. This method has mature technology and high detection accuracy, but the measurement period is long, the cost is high, and there are measurement blank areas in shallow seas where ships are difficult to reach. [0003] Radar remote sensing has all-weather and all-weather earth observation capabilities, and has obvious advantages in the inversion and acquisition of dynamic parameters of the marine environment. It is an indispensable means of marine environment monitoring. Using radar remote sensing i...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention provides a shallow sea depth radar remote sensing detection method, which solves the problem of underwater topography detection in shallow seas with large areas and near real-time (especially in shallow seas with high color levels) in the prior art and based on The technical problem of relatively low accuracy of single-view SAR remote sensing image detection of shallow sea depth

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