Grid terrain feature-based airspace accessibility analysis method

Abstract

The invention discloses a grid terrain feature-based airspace accessibility analysis method. The method comprises the following steps of: carrying out triangulation on a grid digital elevation model,and designing and selecting features capable of representing space nature of obtained triangular sheets on the obtained triangular sheets so as to extract feature vectors of the triangular sheets; clustering the feature vectors of all the triangular sheets included in a terrain sample by utilizing a CLARA method so as to obtain a feature matrix capable of representing the terrain sample; realizingterrain classification on the basis of the obtained terrain feature matrix by adoption of a BP neural network; and establishing a fuzzy interference system by combining threat degree data and utilizing a fuzzy mathematic method, so as to calculate the accessibility of a 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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