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US 10,539,395 B2Granted
Energy insertion into seeker
AssigneeBAE Systems Information and Electronic Systems Integration Inc.
InventorsDimitre P. Dimitrov, Michael J. Choiniere, Jason T. Whitwam
Life of this patent
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Abstract
A system and method for improved detection of lasers for use in laser guidance systems. By providing background illumination via one or more radiation sources the accuracy of the laser detection system can be improved. A closed loop system detects the background current on the detector and provides additional illumination when the back ground level is below a threshold current value thus providing for a faster detector response.
Claims15
A method for improving detection in a laser guidance system, comprising:
- measuring an initial pixel array background current on a focal plane array;
- comparing the initial pixel array background current to a threshold current value via a processing unit;
- and
- if the initial pixel array background current is below the threshold current value, providing an additional radiation energy to the focal plane array via a light source, thereby improving detection in the laser guidance system.
1 more element
A semi active laser seeker, comprising:
- a focal plane array located within a housing and configured to receive radiation signals of a scene and configured to provide an initial pixel array background current value;
- a processing unit configured to compare the initial pixel array background current value to a threshold current value and when the initial pixel array background current is below the threshold current value to determine an additional amount of radiation energy;
- and
- one or more radiation sources located within the housing for providing the additional radiation energy to the focal plane array to reach the threshold current value.
1 more element
Dependencies are inferred from the claim text.