A method of airspace traversability analysis based on grid terrain features

Abstract

The present invention provides a method for analyzing airspace accessibility based on grid terrain features, triangulates the grid digital elevation model, and designs and selects features that can characterize the spatial properties of the triangles on the divided triangles , completed the extraction of the feature vectors of the triangular patches; used the CLARA method to cluster the feature vectors of all the triangular patches contained in the terrain samples, and obtained the feature matrix that can represent the terrain samples; used the BP neural network on the basis of the obtained terrain feature matrix The terrain classification is realized; the fuzzy reasoning system is established by using the fuzzy mathematics method combined with the threat degree data to complete the calculation of the traversability of the battlefield area.

Description

technical field [0001] The invention belongs to the field of terrain excavation, mainly relates to terrain analysis and identification and traversability analysis, and can be used for traversability analysis of battlefield airspace. Background technique [0002] Traversability is a measure of the ability of vehicles to traverse certain areas. It describes the relationship between certain moving entities and the areas they travel through. [0003] Whether an area is accessible, and the extent of the area's accessibility, depend on the movement characteristics of the moving entity and related terrain attributes. Traditional threat assessment and route planning are mostly a single analysis of threat targets (missiles, anti-aircraft guns, radars), and in real scenarios, the influence of terrain is also an important factor that cannot be ignored (terrain tracking, terrain avoidance). Threats are dense and the terrain environment is complex. It is difficult to completely avoid t...

AI Technical Summary

Problems solved by technology

Traditional threat assessment and route planning are mostly a single analysis of threat targets (missiles, anti-aircraft guns, radars), and in real scenarios, the influence of terrain is also an important factor that cannot be ignored (terrain tracking, terrain avoidance). Threats are dense, the terrain environment is complex, and it is difficult to completely avoid threats and achieve the expected combat objectives

It is obviously unrealistic to set the impassable area simply by the type, size and location of the threat without considering the influence of the terrain where the threat is located

At present, there are no research results on the feasibility of combat aircraft in the battlefield area by combining terrain features and threat information

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