Fuzzy logic in fire control systems for air defence

It is the necessity defense combat against modern offensive weapons from the air to apply the best and most efficient defense tactics and technology. The problems of shooting targets in air space are solved by appropriate design of a fire control system, and the latest developments employ computational intelligence models and techniques. In this paper, a fuzzy-logic knowledge-base system in the fire control system for missile based air defense has been investigated. The aim of this paper is to provide a quality guidance process with minimum number of measurements, and to use the results for modification of the existing air defence systems, which are present in our Army (Strela 10). The novelty is in defining fuzzy logic variables for the approaching velocities between target and missile drf and the angle of lead when the missile is still on the launcher ksif. This fuzzy logic based technique reduces the demand for determining of the parameters usually calculated using provisional estimates and employed in missile’s homing guidance. It is developed by using Fuzzy Toolbox of Matlab. Simulation model in the vertical plane is developed by using Matlab/ Simulink platform. Copyright © 2007 IFA