Method and Apparatus for Detecting Sources of Projectiles
AssigneeBAE Systems Information and Electronic Systems Intergration Inc.
InventorsPaul A. Zank, Michael Mercier
Life of this patent
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Abstract
What is provided is the use of an array of E-field sensors to detect the closest approach of incoming projectiles and to determine through time difference of arrival the bearing of the incoming projectile, thus to identify the bearing of the source of the projectile. dE/dT processing of the individual outputs of the E-field sensors indicates by the zero crossing the peak of the E-field disturbance and thus the instance of time of the closest approach of the projectiles to a sensor.
Claims20
A method for detecting the direction of an incoming round, comprising the steps of:
- deploying an E-field sensor array having individual E-field sensors;
- determining the time difference of arrival of the round adjacent each of said E-field sensors in the array;
- and,
- computing angle of arrival from the time differences.
Apparatus for detecting the direction of an incoming round, comprising:
- an array of individual E-field sensors, each having an output;
- and,
- a processor coupled to each E-field sensor to determine the time of closest approach of said round to the associated sensor and to determine angle of arrival from the time difference of arrival of the round at selected pairs of E-field sensors.
Dependencies are inferred from the claim text.