Remote Detection and Measurement of Objects
First Claim
1. A system for remote detection of one or more dimensions of a metallic and/or dielectric object, comprising:
- a transmission apparatus, including a transmission element, configured to direct microwave and/or mm wave radiation in a predetermined direction,a detection apparatus configured to receive radiation from an entity resulting from the transmitted radiation and to generate one or more detection signals in the frequency domain, anda controller, the controller being operable to(vi) cause the transmitted radiation to be swept over a predetermined range of frequencies,(vii) perform a transform operation on the detection signal(s) to generate one or more transformed signals in the time domain, and(viii) determine, from one or more features of the transformed signal, one or more dimensions of a metallic or dielectric object upon which the transmitted radiation is incident.
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Accused Products
Abstract
Provided are methods of using electromagnetic waves for detecting metal and/or dielectric objects. Methods include directing microwave and/or mm wave radiation in a predetermined direction using a transmission apparatus, including a transmission element; receiving radiation from an entity resulting from the transmitted radiation using a detection apparatus; and generating one or more detection signals in the frequency domain using the detection apparatus. Methods may include operating a controller, wherein operating the controller includes causing the transmitted radiation to be swept over a predetermined range of frequencies, performing a transform operation on the detection signal(s) to generate one or more transformed signals in the time domain, and determining, from one or more features of the transformed signal, one or more dimensions of a metallic or dielectric object upon which the transmitted radiation is incident. A system and method for remote detection and/or identification of a metallic threat object using late time response (LTR) signals is also disclosed.
47 Citations
93 Claims
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1. A system for remote detection of one or more dimensions of a metallic and/or dielectric object, comprising:
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a transmission apparatus, including a transmission element, configured to direct microwave and/or mm wave radiation in a predetermined direction, a detection apparatus configured to receive radiation from an entity resulting from the transmitted radiation and to generate one or more detection signals in the frequency domain, and a controller, the controller being operable to (vi) cause the transmitted radiation to be swept over a predetermined range of frequencies, (vii) perform a transform operation on the detection signal(s) to generate one or more transformed signals in the time domain, and (viii) determine, from one or more features of the transformed signal, one or more dimensions of a metallic or dielectric object upon which the transmitted radiation is incident. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 54)
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14. A method for remote detection of one or more dimensions of a metallic and/or dielectric object, comprising:
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directing microwave or mm wave radiation in a predetermined direction using a transmission apparatus, including a transmission element; receiving, via a detection apparatus, radiation from an entity resulting from the transmitted radiation; generating, via the detection apparatus, one or more detection signals in the frequency domain; and via a controller; (i) causing the transmitted radiation to be swept over a predetermined range of frequencies, (ii) performing a transform operation on the detection signal(s) to generate one or more transformed signals in the time domain, and (iii) determining, from one or more features of the transformed signal, one or more dimensions of a metallic or dielectric object upon which the transmitted radiation is incident. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 93)
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28. A system for remote detection and/or identification of a metallic threat object, comprising:
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a transmission apparatus, including a transmission element, configured to direct microwave and/or mm wave radiation in a predetermined direction, a detection apparatus configured to receive radiation from an entity resulting from the transmitted radiation and to generate one or more detection signals in the frequency domain, and control circuitry, the control circuitry being operable to (i) cause the transmitted radiation to be swept over a predetermined range of frequencies, (ii) perform a transform operation on the detection signal(s) to generate one or more transformed signals in the time domain, (iii) extract, from one or more features of the transformed signal, the late time response (LTR) signal of the metallic threat object upon which the transmitted radiation is incident, the metallic threat object being carried by or associated with the entity; and (iv) from the LTR signal, determine the presence and/or identity of the metallic threat object. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65)
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66. A method for remote detection and/or identification of a metallic threat object, comprising:
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providing a transmission apparatus, including a transmission element, configured to direct microwave and/or mm wave radiation in a predetermined direction, providing a detection apparatus configured to receive radiation from an entity resulting from the transmitted radiation and to generate one or more detection signals in the frequency domain, and control circuitry, the method comprising (i) causing the transmitted radiation to be swept over a predetermined range of frequencies, (ii) performing a transform operation on the detection signal(s) to generate one or more transformed signals in the time domain, (iii) extracting, from one or more features of the transformed signal, the late time response (LTR) signal of the metallic threat object upon which the transmitted radiation is incident, the metallic threat object being carried by or associated with the entity; and (iv) from the LTR signal, determine the presence and/or identity of the metallic threat object. - View Dependent Claims (67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92)
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Specification