This article investigates man-portable air defense systems (MANPAD) missile threat detection and an effective maneuvering strategy for aircraft (A/C) destruction avoidance. The 3-D trajectory of a multistage missile (boost and sustain phases) under pure proportional navigation is first estimated. The maximum likelihood estimator is used to estimate its motion parameters of the two-stage missile considered using only angle measurements from a low-altitude A/C. Missile threat detection is investigated based on two methods: 1) estimation-based as a baseline method and 2) threat-plane-based. The former can provide a miss distance between the A/C and the missile, but more measurements are required. The latter is shown to give a faster threat alert, allowing the A/C to start the evasive maneuver earlier. An efficient evasion maneuver for avoiding destruction is banking away from the missile by a turning maneuver in the horizontal plane due to its low altitude. The survivability probability of the A/C is evaluated with and without countermeasures (flares). There are two key factors that affect the evasion performance: 1) maneuver start time and 2) the maximum acceleration during the maneuver. Simulations show that the A/C can start maneuvering earlier using the threat-plane-based method compared with the estimation-based method. It can successfully evade the missile with the help of maneuvering. It is also shown that using flares, the necessary maneuver is less drastic (lower $g$’s). Simulation results compare the necessary $g$’s for obtaining a certain minimal distance from the missile.


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    Title :

    Missile Threat Detection and Evasion Maneuvers With Countermeasures for a Low-Altitude Aircraft


    Contributors:


    Publication date :

    2023-12-01


    Size :

    1223577 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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