SWIR targeted agile Raman (STAR) system for on-the-move detection of emplace explosives
First Claim
1. A method comprising:
- illuminating a target area comprising at least one unknown sample to thereby generate a plurality of first interacted photons wherein said first interacted photons are selected from the group consisting of;
photons absorbed by said target area, photons reflected by said target area, photons scattered by said target area, photons emitted by said target area, and combinations thereof;
assessing said plurality of first interacted photons using a spectroscopic device wherein said assessing comprises obtaining a test SWIR data set representative of said target area;
analyzing said test SWIR data set to thereby identify an area of interest in said target area;
illuminating said area of interest using a laser light source to thereby generate a plurality of second interacted photons wherein said second interacted photons are selected from the group consisting of;
photons absorbed by said area of interest, photons reflected by said area of interest, photons scattered by said area of interest, photons emitted by said area of interest, and combinations thereof;
assessing said plurality of second interacted photons using a spectroscopic device wherein said assessing comprises obtaining a test Raman data set representative of said area of interest;
analyzing said test Raman data set to thereby identify said area of interest as comprising at least one of;
an explosive material, a concealment material, a formulation additive of an explosive material, a binder of an explosive material, a non-explosive material, and combinations thereof.
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Accused Products
Abstract
The present disclosure provides for a system and method for detecting explosives and other materials in a sample scene. First interacted photons are produced from a target area wherein the first interacted photons are generated via solar radiation. The first interacted photons are assessed to thereby generate a SWIR hyperspectral image. The SWIR hyperspectral image is analyzed to identify an area of interest likely of comprising an explosive material. The area of interest is illuminated using laser light illumination to generate second interacted photons from the area of interest. These second interacted photons are assessed to determine whether it not an explosive material is present in the area of interest. The system and method may be configured in standoff, OTM, static and UGV configurations.
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Citations
34 Claims
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1. A method comprising:
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illuminating a target area comprising at least one unknown sample to thereby generate a plurality of first interacted photons wherein said first interacted photons are selected from the group consisting of;
photons absorbed by said target area, photons reflected by said target area, photons scattered by said target area, photons emitted by said target area, and combinations thereof;assessing said plurality of first interacted photons using a spectroscopic device wherein said assessing comprises obtaining a test SWIR data set representative of said target area; analyzing said test SWIR data set to thereby identify an area of interest in said target area; illuminating said area of interest using a laser light source to thereby generate a plurality of second interacted photons wherein said second interacted photons are selected from the group consisting of;
photons absorbed by said area of interest, photons reflected by said area of interest, photons scattered by said area of interest, photons emitted by said area of interest, and combinations thereof;assessing said plurality of second interacted photons using a spectroscopic device wherein said assessing comprises obtaining a test Raman data set representative of said area of interest; analyzing said test Raman data set to thereby identify said area of interest as comprising at least one of;
an explosive material, a concealment material, a formulation additive of an explosive material, a binder of an explosive material, a non-explosive material, and combinations thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system comprising:
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a first two-dimensional array of detection elements; a laser light source configured to illuminate an area of interest in a target area; a second two-dimensional array of detection elements; a first optical system coupled to said laser light source to direct light to said area of interest; a second optical system wherein said second optical system; collects a first plurality of interacted photons wherein said first plurality of interacted photons are generated by illuminating a target area, directs said first plurality of interacted photons to a first two-dimensional array of detection elements to thereby generate at least one of;
a plurality of spatially resolved SWIR spectra representative of said target area, a SWIR image representative of said target area, and combinations thereof,collects a second plurality of interacted photons wherein said second plurality of interacted photons are generated by illuminating an area of interest in said target area with said laser light source, and directing said second plurality of interacted photons to a fiber array spectral translator device, wherein said fiber array spectral translator device comprises; a two-dimensional array of optical fibers drawn into a one-dimensional fiber stack so as to effectively convert a two-dimensional field of view into a curvilinear field of view; a spectrometer coupled to said one-dimensional fiber stack of said fiber array spectral translator device, wherein an entrance slit of the spectrometer is coupled to said one-dimensional fiber stack to generate a plurality of spatially resolved Raman spectra; and wherein said second two-dimensional array of detection elements coupled to said spectrometer detects said spatially resolved Raman spectra to thereby generate at least one of;
a plurality of spatially resolved Raman spectra representative of said area of interest and a Raman image representative of said area of interest. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
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25. A method comprising:
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illuminating a target area comprising at least one unknown sample to thereby generate a plurality of first interacted photons wherein said first interacted photons are selected from the group consisting of; photons absorbed by said target area, photons reflected by said target area, photons scattered by said target area, photons emitted by said target area, and combinations thereof; assessing said first interacted photons to thereby generate a SWIR hyperspectral image representative of said target area; analyzing said SWIR hyperspectral image representative of said target area to thereby identify an area of interest; illuminating said area of interest to thereby generate a plurality of second interacted photons wherein said second interacted photons are selected from the group consisting of photons absorbed by said area of interest, photons reflected by said area of interest, photons scattered by said area of interest, photons emitted by said area of interest, and combinations thereof; assessing said second interacted photons to thereby generate a plurality of spatially resolved Raman spectra representative of said area of interest; analyzing said Raman spectra to thereby identify said area of interest as comprising at least one of;
an explosive material, a concealment material, a formulation additive of an explosive material, a binder of an explosive material, a non-explosive material, and combinations thereof. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification