Method and system for determining an optimal missile intercept approach direction for correct remote sensor-to-seeker handover
AssigneeLockheed Martin Corporation
InventorRonald H. LaPat
Life of this patent
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Abstract
A method and system for determining an optimal missile intercept approach direction to maximize the probability of association between a remote sensor designated object and a corresponding missile seeker-observed object. The method and system calculates a distance metric between a remote sensor designated object and the corresponding missile seeker-observed object, and calculates the probability that the remote sensor designated object and the corresponding missile seeker-observed object have a smaller distance metric between them than between the remote sensor designated object and any other missile seeker-observed object.
Claims17
A computer implemented method for determining an optimal missile intercept approach direction to maximize the probability of association between a remote sensor designated object and a corresponding missile seeker-observed object, the method comprising:
- calculating in a computer processor, a distance metric between the remote sensor designated object and the corresponding missile seeker-observed object;
- and
- calculating in the computer processor, the probability that the remote sensor designated object and the corresponding missile seeker-observed object have a smaller distance metric between them than between the remote sensor designated object and any other seeker-observed object;
- and
- determining a missile intercept approach direction based on said distance metric and probability calculations from said computer processor.
A method for determining an optimal missile intercept approach direction to maximize the probability of correct association between a remote sensor designated object and a corresponding missile seeker-observed object, the method comprising:
- scanning over a plurality of bistatic angles between the remote sensor, the designated object, and the missile seeker, in a computer process;
- for each bistatic angle:
- transforming in a computer process, true kinematic states of the objects to a seeker reference frame;
- iteratively adding in a computer process, randomly selected remote sensor and seeker measurement noise to the true kinematic states of the remote sensor designated object and the corresponding missile seeker-observed object;
- for each iteration of adding randomly selected measurement noise, calculating in a computer process, a distance metric between the remote sensor designated object and the corresponding missile seeker-observed object;
- and
- for all the iterations of adding selected measurement noise, calculating in a computer process, the probability that the remote sensor designated object and the corresponding missile seeker-observed object have a smaller distance metric between them than between the remote sensor designated object any other missile seeker-observed object;
- selecting in a computer process as the optimal missile intercept approach direction, the bistatic angle with the highest probability that the remote sensor designated object and the corresponding missile seeker-observed object have a smaller distance metric between them than between the remote sensor designated object and any other missile seeker-observed object.
A system for determining an optimal missile intercept approach direction to maximize the probability of association between a remote sensor designated object and a corresponding missile seeker-observed object, the system comprising:
- a processor executing instructions for:
- calculating a distance metric between the remote sensor designated object and the corresponding missile seeker-observed object;
- and
- calculating the probability that the remote sensor designated object and the corresponding missile seeker-observed object have a smaller distance metric between them than between the remote sensor designated object and any other missile seeker-observed object.
A system for determining an optimal missile intercept approach direction to maximize the probability of association between a remote sensor designated object and a corresponding missile seeker-observed object, the method comprising:
- a processor executing instructions for:
- scanning over a plurality of bistatic angles between the remote sensor, the designated object, and the missile seeker;
- for each bistatic angle:
- transforming true kinematic states of the objects to a seeker reference frame;
- iteratively adding randomly selected remote sensor and seeker measurement noise to the true kinematic states of the remote sensor designated object and the corresponding missile seeker-observed object;
- for each iteration of adding randomly selected measurement noise, calculating a distance metric between the remote sensor designated object and the corresponding missile seeker-observed object;
- and
- for all the iterations of adding selected measurement noise, calculating the probability that the remote sensor designated object and the corresponding missile seeker-observed object have a smaller distance metric between them than between the remote sensor designated object and any other missile seeker-observed object;
- and
- selecting as the optimal missile intercept approach direction, the bistatic angle with the highest probability that the remote sensor designated object and the corresponding missile seeker-observed object have a smaller distance metric between them than between the remote sensor designated object and any other missile seeker-observed object.
Dependencies are inferred from the claim text.