Method for planning route of stealth aircraft

Abstract

The invention relates to a method for planning a route of a stealth aircraft, and particularly relates to a method for planning a route of a stealth aircraft with a variable RCS (Radar Cross Section) characteristic. The method comprises the following steps: 1, firstly, analyzing a three-dimensional RCS of the aircraft, and finding out each incidence direction of the RCS with a minimal value so as to be used as a direction allowing to be aligned to a radar of an enemy when the aircraft flies; 2, secondly, grouping the incident directions according to the movement characteristic of the aircraft, finding out the types of the movements through which the aircraft continuously keeps minimal RCS under each direction so as to be used as a direction of the route most suitable for defense penetration; and 3, under current position and gesture of the aircraft, if the aircraft is shortly maneuvered, enabling to be switched to the direction of a certain route screened from the step 2, wherein the direction of the route is a direction most suitable for defense penetration; and if the direction can not be selected through switching, looking for a route capable of ensuring that the most important threats (nearest radars and radars with highest capacity) are effectively avoided as much as possible.

Description

technical field [0001] The present invention relates to a route planning method for a stealth aircraft, in particular to a route planning method for a stealth aircraft with variable RCS (radar launch area) characteristics, especially a method utilizing the geometric characteristics of the aircraft RCS under strong real-time constraints route planning method. Background technique [0002] Stealth aircraft have different RCS with different angles of incident radar waves. The basic principle of stealth penetration is to aim the smaller RCS face at the radar as much as possible during the flight of the aircraft. The existing route planning methods all augment the angle parameters of the aircraft to the quantities that need to be optimized, and use optimization algorithms or search algorithms to solve them. In this way, the route planning problem of the stealth aircraft in the three-dimensional space can be transformed into the search for the point position of the stealth aircr...

AI Technical Summary

Problems solved by technology

This will lead to the expansion of the dimension of the space to be planned for route planning from 3D to 6D, greatly increasing the computational load of the algorithm, and making it difficult to realize real-time route planning calculations under the limited computing resources onboard.

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