Special-shaped anchor point space-time prism solving method and system based on comprehensive environmental influence model

Abstract

The invention belongs to the technical field of target object reachable domain analysis, and particularly relates to a special-shaped anchor point space-time prism solving method and system based on a comprehensive environmental influence model, and the method comprises the steps: constructing a task-oriented space-time comprehensive environmental influence model according to the shortest time consumption cost of the maneuverability performance evaluation of cross-country persons; rasterizing and solving the time-space comprehensive environmental influence model, and taking a plurality of suspected starting points and target points with known time-space coordinates as anchor points; the shortest time cost and the corresponding space-time trajectory are evaluated through a path tracking algorithm, and the space-time prism upper and lower pyramid surfaces for describing the activity boundary of the uncertain task object are searched and acquired in combination with the shortest time cost, so that the solved space-time prism is obtained. According to the method, fine and global reachable time-space domain analysis can be carried out on a task executor starting from a plurality of suspected positions in the air during continuous change and on the situation of task execution of a plurality of possible targets, the result is scientific and reasonable, and the method fits an actual task execution environment.

Description

technical field [0001] The invention belongs to the technical field of reachable domain analysis of target objects, and in particular relates to a method and system for solving a special-shaped anchor point space-time prism based on a comprehensive environmental impact model. Background technique [0002] The space-time environmental effectiveness assessment for combat missions is not a complex problem that any domain knowledge can solve alone, but involves many environmental problems, analysis methods, solutions, and knowledge in related fields. The main purpose of environmental impact analysis is to analyze the objective influence laws of environmental factors. The corresponding analysis conclusions are not directly related to specific tasks, but the results can provide support for further comprehensive impact analysis on specific tasks. It involves a large number of algorithms related to terrain, soil quality, vegetation, meteorology and other environments. The comprehen...

AI Technical Summary

Problems solved by technology

For physical space activities, the anchor point generally exists in the form of a single space-time point, but for the problem that the starting position and target point of the task performer cannot be accurately determined, the spatial position of starting or arriving at the target does not necessarily refer to a certain location. points in space, which may be in the form of a plane, a line, or a hash point, and the existing solution methods cannot satisfy the above-mentioned range.

Moreover, in the isotropic and uniform velocity assumptions of the existing classic space-time prism theory, one problem is ignored. The influence of the environment on the velocity is mostly evaluated in a static environment, that is, the velocity is generally only related to the position and direction of travel, and has nothing to do with time. , resulting in a large number of invalid calculations, causing the calculation results to deviate from the actual situation

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