Transient RF detector and recorder
First Claim
1. A directional-sensing electromagnetic radiation detection device comprising:
- a plurality of sector antenna/detector units, each of said sector antenna/detector units comprising;
a directional antenna element having a beam-width of approximately 90 degrees, andan envelope detector structured to detect electromagnetic radiation signals,wherein a first sector antenna/detector unit and a second sector antenna/detector unit of said sector antenna/detector units are situated along a first axis in substantially a same plane,wherein a maximum sensitivity direction of each of said first and second sector antenna/detector units points away from each other along the first axis,wherein a third sector antenna/detector unit and a fourth sector antenna/detector unit of said sector antenna/detector units are situated along a second axis in substantially said same plane,wherein a maximum sensitivity direction of each of said third and fourth sector antenna/detector units points away from each other along the second axis, andwherein the second axis is substantially perpendicular to the first axis; and
a controller structured to receive the detected electromagnetic radiation signals from each of the first, second, third and fourth sector antenna/detector units, sum the received detected electromagnetic radiation signals from the first and second sector antenna/detector units to obtain a first vector sum, sum the received detected electromagnetic radiation signals from the third and fourth sector antenna/detector units to obtain a second vector sum, and sum the first and second vector sums to obtain a net azimuth bearing of an emission source of the electromagnetic radiation signals.
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Accused Products
Abstract
A portable device for detecting a radio frequency transmission of electromagnetic radiation includes a housing; a controller situated within the housing; memory communicatively connected to the controller; an antenna connected to the controller and configured to receive the radio frequency transmission; and an audio-generating component connected to the controller. The radio frequency transmission of the electromagnetic radiation is harmful to an electrical device and is from a transient electromagnetic device (TED) threat source. The controller is operative for sensing magnitude, duration, and/or repetition of the radio frequency transmission; identifying a class of the radio frequency transmission based on one of the magnitude, duration, and repetition associated with the radio frequency transmission; and causing the audio-generating component to output tones to provide aural discrimination of an identified class of the radio frequency transmission received by the portable device. The identified class is a transient electromagnetic pulse signal from the TED source.
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Citations
21 Claims
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1. A directional-sensing electromagnetic radiation detection device comprising:
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a plurality of sector antenna/detector units, each of said sector antenna/detector units comprising; a directional antenna element having a beam-width of approximately 90 degrees, and an envelope detector structured to detect electromagnetic radiation signals, wherein a first sector antenna/detector unit and a second sector antenna/detector unit of said sector antenna/detector units are situated along a first axis in substantially a same plane, wherein a maximum sensitivity direction of each of said first and second sector antenna/detector units points away from each other along the first axis, wherein a third sector antenna/detector unit and a fourth sector antenna/detector unit of said sector antenna/detector units are situated along a second axis in substantially said same plane, wherein a maximum sensitivity direction of each of said third and fourth sector antenna/detector units points away from each other along the second axis, and wherein the second axis is substantially perpendicular to the first axis; and a controller structured to receive the detected electromagnetic radiation signals from each of the first, second, third and fourth sector antenna/detector units, sum the received detected electromagnetic radiation signals from the first and second sector antenna/detector units to obtain a first vector sum, sum the received detected electromagnetic radiation signals from the third and fourth sector antenna/detector units to obtain a second vector sum, and sum the first and second vector sums to obtain a net azimuth bearing of an emission source of the electromagnetic radiation signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A directional-sensing electromagnetic radiation detection device comprising:
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a plurality of sector antenna/detector units, each of said sector antenna/detector units comprising; a directional antenna element having a beam-width of approximately 90 degrees, and an envelope detector structured to detect electromagnetic radiation signals, wherein a first sector antenna/detector unit and a second sector antenna/detector unit of said sector antenna/detector units are situated along a first axis in substantially a same first plane, wherein a maximum sensitivity direction of each of said first and second sector antenna/detector units points away from each other along the first axis, wherein a third sector antenna/detector unit and a fourth sector antenna/detector unit of said sector antenna/detector units are situated along a second axis in substantially said same first plane, wherein a maximum sensitivity direction of each of said third and fourth sector antenna/detector units points away from each other along the second axis, wherein the second axis is substantially perpendicular to the first axis, wherein a fifth sector antenna/detector unit of said sector antenna/detector units is situated along a third axis in a second plane different from said same first plane, wherein the third axis is substantially perpendicular to the first axis and the second axis, wherein the third axis intersects the first axis and the second axis at a point of intersection of the first axis and the second axis, wherein the point of intersection is substantially equidistant from the first, second, third, fourth and fifth sector antenna/detector units; and a controller structured to receive the detected electromagnetic radiation signals from each of the first, second, third, fourth and fifth sector antenna/detector units, sum the received detected electromagnetic radiation signals from the first and second sector antenna/detector units to obtain a first vector sum, sum the received detected electromagnetic radiation signals from the third and fourth sector antenna/detector units to obtain a second vector sum, and sum the first and second vector sums and the received detected electromagnetic radiation signal from the fifth sector antenna/detector unit as a vector to obtain a net azimuth bearing and an elevation bearing of an emission source of the electromagnetic radiation signals. - View Dependent Claims (19)
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20. A directional-sensing electromagnetic radiation detection device comprising:
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a plurality of sector antenna/detector units, each of said sector antenna/detector units comprising; a directional antenna element having a beam-width of approximately 90 degrees, and an envelope detector structured to detect electromagnetic radiation signals, wherein a first sector antenna/detector unit and a second sector antenna/detector unit of said sector antenna/detector units are situated along a first axis in substantially a same first plane, wherein a maximum sensitivity direction of each of said first and second sector antenna/detector units points away from each other along the first axis, wherein a third sector antenna/detector unit and a fourth sector antenna/detector unit of said sector antenna/detector units are situated along a second axis in substantially said same first plane, wherein a maximum sensitivity direction of each of said third and fourth sector antenna/detector units points away from each other along the second axis, wherein the second axis is substantially perpendicular to the first axis, wherein a fifth sector antenna/detector unit of said sector antenna/detector units is situated along a third axis in a second plane different from said same first plane, wherein a sixth sector antenna/detector unit of said sector antenna/detector units is situated along the third axis in the second plane, wherein the third axis is substantially perpendicular to the first axis and the second axis, wherein the third axis intersects the first axis and the second axis at a point of intersection of the first axis and the second axis, wherein the point of intersection is substantially equidistant from the first, second, third, fourth, fifth and sixth sector antenna/detector units, and wherein a maximum sensitivity direction of each of said fifth and sixth sector antenna/detector units points away from each other along the third axis; and a controller structured to receive the detected electromagnetic radiation signals from each of the first, second, third, fourth, fifth and sixth sector antenna/detector units, sum the received detected electromagnetic radiation signals from the first and second sector antenna/detector units to obtain a first vector sum, sum the received detected electromagnetic radiation signals from the third and fourth sector antenna/detector units to obtain a second vector sum, sum the received detected electromagnetic radiation signals from the fifth and sixth sector antenna/detector units to obtain a third vector sum, and sum the first, second and third vector sums to obtain a net azimuth bearing and an elevation bearing of an emission source of the electromagnetic radiation signals. - View Dependent Claims (21)
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Specification