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US 7,023,956 B2Granted
Detection methods and system using sequenced technologies
AssigneeLockheed Martin Corporation
InventorsMichael A. Heaton, Munther M. Hindi, Lee M. Klynn, David Most, Shawn Younkin
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Abstract
Methods and systems for interconnecting sub-systems and for identifying combinations of multiple technologies. The method of this invention can be applied to detecting the presence of a characteristic in an object.
Claims33
A method for detecting a presence of a characteristic in an object, the method comprising the steps of:
- providing at least three detection technologies;
- first determining, utilizing one of the at least three detection technologies, whether the characteristic is present in the object;
- subsequently determining, utilizing a subsequent one of the at least three detection technologies, whether the characteristic is present in the object;
- finally determining utilizing another one of the at least three detection technologies, if previous determinations for a majority of said at least three detection technologies are not identical, whether the characteristic is present in the object;
- applying a predetermined criterion, after determinations by at least a majority of the at least three detection technologies, to detect the presence of the characteristic in the object.
2 more elements
A method for selecting sub-systems for integration into a system, the method comprising the steps of:
- (a) providing a candidate system comprising at least two detection sub-systems;
- (b) performing a Monte Carlo analysis of detecting a presence of the at least one characteristic in an object;
- (c) calculating a pre-defined figure of merit for the candidate system;
- (d) selecting the candidate system if the figure of merit value satisfies a pre-determined criterion.
1 more element
A system for detecting presence of a characteristic in an object, the system comprising:
- three detection sub-systems;
- and, wherein,
- PD1 is a probability of detection of a sub-system that has a highest probability of detection,
- PD2 is a probability of detection of a second one of the three detection sub-systems,
- PD3 is a probability of detection of a third one of the three detection sub-systems, and,
- the probability of detection of the sub-system that has the highest probability of detection satisfies the following relation:
- (1−PD1)≧[(1−PD1)(1−PD2)+(1−PD1)PD2(1−PD3)+PD1(1−PD2)(1−PD3)].
4 more elements
A system for detecting presence of a characteristic in an object, the system comprising:
- three detection sub-systems;
- and, wherein,
- PFA1 is a probability of false alarm of a sub-system that has a lowest probability of false alarm,
- PFA2 is a probability of false alarm of a second one of the three detection sub-systems, and
- PFA3 is a probability of false alarm of a third one of the three detection sub-systems, and,
- the probability of false alarm of the sub-system that has the lowest probability of false alarm satisfies the following relation:
- PFA1≧[(PFA1)(PFA2)+(1−PFA1)(PFA2)(PFA3)+(PFA1)(1−PFA2)(PFA3)].
4 more elements
A system for detecting presence of at least one characteristic in an object, the system comprising:
- at least two detection sub-systems;
- said at least two detection sub-systems being selected by the steps of:
- (a) providing a candidate system from at least two candidate systems, each candidate system from said at least two candidate systems comprising at least two detection sub-systems;
- (b) performing a Monte Carlo analysis of detecting a presence of the at least one characteristic in an object for the candidate system;
- (c) calculating a pre-defined figure of merit for the candidate system;
- (d) providing another candidate system from said at least two candidate systems;
- (e) repeating steps (a) through (c) for the another candidate system;
- (f) selecting a system from said at least two candidate systems, said selected system having a figure of merit value satisfying a pre-determined criterion.
5 more elements
A system for detecting presence of at least one type of explosive in an object, the system comprising:
- at least two explosive detection sub-systems;
- said at least two explosive detection sub-systems being selected by the steps of:
- (a) providing a candidate system from at least two candidate systems, each candidate system from said at least two candidate systems comprising at least two explosive detection sub-systems;
- (b) performing a Monte Carlo analysis of detecting a presence of the at least one type of explosive in an object for the candidate system;
- (c) calculating a pre-defined cost figure of merit for the candidate system;
- (d) providing another candidate system from said at least two candidate systems;
- (e) repeating steps (a) through (c) for the another candidate system;
- (f) selecting a system from said at least two candidate systems, said selected system having a cost figure of merit value satisfying a pre-determined criterion.
5 more elements
Dependencies are inferred from the claim text.