System and method for detecting performance of a sensor field at all points within a geographic area of regard
First Claim
1. A method for determining a path of travel of an intruder traversing an area of regard (AOR) to a predefined point, where the path of travel has a minimum probability of detection relative to other potential paths of travel of the intruder, the method comprising:
- providing three dimensional terrain data concerning the area of regard;
providing the locations of a plurality of detection sensors implemented in the area of regard, with each said detection sensor having a known field of view;
providing a predetermined single scan detection probability for each of the detection sensors;
generating a grid of points that is laid over the area of regard;
using a computer processor to consider the grid of points, the three dimensional terrain data, and the predetermined single scan detection probability for each of the detection sensors, and to determine a particular path of travel, defined by arcs connecting selected ones of said grid of points, of said intruder to said predefined point that represents a minimum probability of detection of said intruder relative to all other potential paths of travel through said area of regard to said predefined point.
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Abstract
A method for determining a path of travel of an intruder traversing an area of regard (AOR) to a predefined point, where the path of travel has a minimum probability of detection relative to other potential paths of travel of the intruder. The method may comprise: providing three dimensional terrain data concerning the AOR; providing the locations of a plurality of detection sensors implemented in the AOR, with each detection sensor having a known field of view; providing a predetermined single scan detection probability for each of the detection sensors; generating a grid of points that is laid over the AOR; and using the foregoing information to determine a particular path of travel, defined by selected arcs connecting specific ones of the grid of points, of the intruder to the predefined point that represents a minimum probability of detection of the intruder.
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Citations
20 Claims
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1. A method for determining a path of travel of an intruder traversing an area of regard (AOR) to a predefined point, where the path of travel has a minimum probability of detection relative to other potential paths of travel of the intruder, the method comprising:
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providing three dimensional terrain data concerning the area of regard; providing the locations of a plurality of detection sensors implemented in the area of regard, with each said detection sensor having a known field of view; providing a predetermined single scan detection probability for each of the detection sensors; generating a grid of points that is laid over the area of regard; using a computer processor to consider the grid of points, the three dimensional terrain data, and the predetermined single scan detection probability for each of the detection sensors, and to determine a particular path of travel, defined by arcs connecting selected ones of said grid of points, of said intruder to said predefined point that represents a minimum probability of detection of said intruder relative to all other potential paths of travel through said area of regard to said predefined point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for determining a path of travel of an intruder traversing an area of regard (AOR) to a predefined point, where the path of travel has a minimum probability of detection relative to other potential paths of travel of the intruder, the method comprising:
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providing three dimensional terrain data concerning the area of regard; providing the location of each one of a plurality of detection radar sensors located at spaced apart locations within the area of regard; providing a predetermined single scan detection probability for each said detection radar sensor; defining a valid detection by each of said detection radar sensors as comprising more than one detection while said intruder is moving within a field of view of a given one of said detection radar sensors; generating a grid of points over the area of interest; using a computer processor to consider the grid of points, the three dimensional terrain data, the outputs from the detection sensors and the predetermined single scan detection probability for the detection sensor, and to determine a particular path of travel of said intruder through said AOR, defined by selected ones of said grid of points, that represents a minimum probability of detection of said intruder relative to all other potential paths of travel through said AOR to said predefined point. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A system for monitoring a geographic area of regard (AOR) and determining a path of travel of an intruder traversing an area of regard (AOR) to a predefined point, where the path of travel has a minimum probability of detection relative to other potential paths of travel of the intruder, the system comprising:
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a plurality of detection sensors located at known, predetermined locations within said area of regard, each said detection sensor having a known field of view; each said detection sensor having a predetermined single scan probability of detecting said intruder as said intruder moves within said field of view of said detection sensor; a processor adapted to; generate a grid of points over a map of said AOR, with said detection sensors laid out on said map; and to use known three dimensional terrain data of said AOR and outputs from each of the detection sensors to determine a particular path of travel, defined by selected ones of said grid of points, of said intruder to said predefined point that represents a minimum probability of detection of said intruder relative to all other potential paths of travel through said area of regard to said predefined point. - View Dependent Claims (18, 19, 20)
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Specification