Method of airspace collision detection between maneuvering trajectories

Abstract

The invention belongs to the fields of flight dynamics and flight mission planning, and particularly relates to a method of airspace collision detection between maneuvering trajectories. The method specifically includes the following steps: (S1) carrying out formalized description on the maneuvering trajectories, and carrying out pre-processing; (S2) using a sampling segment of a certain maneuvering trajectory as a reference to establish a reference coordinate system, and converting geodetic coordinates of sampling segments of the maneuvering trajectories into reference coordinates; (S3) calculating a collision segment trajectory from an airspace angle under the reference coordinate system, and converting the collision segment trajectory into geodetic coordinates; and (S4) traversing all sampling segments of the maneuvering trajectories, and outputting collision segment end-point time and status of the maneuvering trajectories. The method can quickly and accurately detect the status ofthe collision segment, which may exist between the trajectories, on the premise of precisely reflecting trajectory characteristics and trajectory shapes.

Description

technical field [0001] The invention belongs to the field of flight dynamics and flight mission planning, and in particular relates to a method for detecting airspace conflicts between maneuvering ballistic trajectories. Background technique [0002] With the development of missile combat patterns and the improvement of precise control requirements, especially when there are a large number of missiles in combat at the same time, the airspace coordination requirements are relatively high. It is necessary to detect the space conflicts of missile flight trajectories and calculate the possible conflicts. The spatial location and time period provide the basis for precise planning of launch time, ensuring precise strikes on targets while avoiding conflicts. On the one hand, due to the more complicated form of maneuvering trajectory, the trajectory of the landing point is not a great arc, and there are also maneuvering changes in the elevation direction, the appropriateness of the ...

AI Technical Summary

Problems solved by technology

On the one hand, due to the more complicated form of maneuvering trajectory, the trajectory of the landing point is not a great arc, and there are also maneuvering changes in the elevation direction, the appropriateness of the formal description of the trajectory directly affects the complexity and detection efficiency of the conflict detection algorithm; on the other hand, the current The collision detection of the system mainly focuses on the two-dimensional plane, including the two-dimensional description of the ballistic curve plane and the orthographic projection method of the ballistic curve plane, which does not conform to the three-dimensional space characteristics of the ballistic

A possible solution is to use an iterative method to search the ballistic space, but this method requires a long calculation time and cannot meet the requirements of fast calculation

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