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公开(公告)号：US11789119B2
公开(公告)日：2023-10-17
申请号：US17321460
申请日：2021-05-16
Applicant: Keysight Technologies, Inc.
Inventor： Lei Li , Lee A. Barford , Jefferson B. Burch , Todd Steven Marshall , Hong-Wei Kong
IPC: G01S7/40 , G01M17/00 , G01S13/931 , G06F9/455 , G01S13/00
CPC classification number: G01S7/4052 , G01M17/00 , G01S13/931 , G06F9/455
Abstract: An emulation test system and method are provided for time adjusting emulated echo signals in response to a periodic electromagnetic signal. The method includes generating a scene simulation including a simulated object; generating a simulation frame indicating object transform information regarding the simulated object; calculating positions and velocities of an emulated targets corresponding to the simulated object using the object transform information; generating a ray tracing frame corresponding to the simulation frame indicating the calculated positions and velocities of the emulated targets; predicting a time point in a next feature in a feature pattern of the electromagnetic signal; calculating predicted target information of the simulated object at the predicted time point using the calculated positions and velocities; and generating an echo signal in response to the next burst of the electromagnetic signal using the predicted target information to compensate for latencies introduced by differences between real world and simulation times.
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公开(公告)号：US20220260674A1
公开(公告)日：2022-08-18
申请号：US17175761
申请日：2021-02-15
Applicant: Keysight Technologies, Inc.
Inventor： Gregory Douglas Vanwiggeren , Todd Steven Marshall , Gregory S. Lee , Natalie Killeen , Christian Bourde
Abstract: A miniature radar target simulator (MRTS) and a system comprising a plurality of MRTS's are described. The MRTS and system are useful for emulating echo signals for a radar DUT with reduced interference. Illustrative radar test systems desirably generate the intended (emulated) radar targets and reduce unwanted (“ghost”) signals, which can result in “ghost targets,” and errant/ambient electromagnetic radiation that reduces the performance and reliability of known re-illuminators and systems including same.
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公开(公告)号：US20220179043A1
公开(公告)日：2022-06-09
申请号：US17113465
申请日：2020-12-07
Applicant: Keysight Technologies, Inc.
Inventor： Dieter W. Vook , Todd Steven Marshall , Jefferson B. Burch , Gregory S. Lee
IPC: G01S7/40 , G01S13/931
Abstract: An apparatus is for generating an emulated radar reflection signal of a target. The apparatus includes a radar detector configured to detect a radar signal frame emitted by a device under test (DUT), an emulation transmitter configured to generate an emulated radar reflection signal of a target being emulated, and a processor configured to generate control signals which control the emulation transmitter according to at least one characteristic of the target being emulated. The processor is further configured to determine a current radar parameter among plural possible radar parameters of the radar signal frame of the DUT, and to adapt the control signals which control the emulation transmitter according to the determined current radar parameter of the radar signal frame of the DUT.
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公开(公告)号：US20180034437A1
公开(公告)日：2018-02-01
申请号：US15223910
申请日：2016-07-29
Applicant: Keysight Technologies, Inc.
Inventor： Todd Steven Marshall , Dietrich W. Vook , Douglas Baney
CPC classification number: H03H7/427 , H01P3/088 , H05K1/02 , H05K1/0216 , H05K1/0234 , H05K1/0245 , H05K1/025
Abstract: A differential transmission line includes a sheath, a first conductive structure, a second conductive structure, and a resistive layer. The first conductive structure is disposed along the differential transmission line and within the sheath, and contributes to formation of a three-dimensional electromagnetic field. The second conductive structure is disposed along the differential transmission line and within the sheath, and contributes to formation of the three-dimensional electromagnetic field. The resistive layer is aligned to be substantially perpendicular to an electric field component of a first mode of the three-dimensional electromagnetic field, and to provide absorption of an electric field component of a second mode of the three-dimensional electromagnetic field.
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公开(公告)号：US10458851B2
公开(公告)日：2019-10-29
申请号：US15887994
申请日：2018-02-03
Applicant: Keysight Technologies, Inc.
Inventor： Gregory Steven Lee , Douglas Michael Baney , Todd Steven Marshall , Gregory Douglas VanWiggeren
Abstract: Illustrative embodiments disclosed herein pertain to a thermal imaging system that includes a thermal imaging sheet having an array of thermal unit cells for generating a thermal footprint in response to receiving an RF signal. The thermal footprint is composed of an array of hotspots having a first set of hotspots indicative of a radiation characteristic of a first polarization component of the RF signal, and a second set of hotspots indicative of a radiation characteristic of a second polarization component of the RF signal. Each thermal unit cell includes a first RF antenna and a second RF antenna oriented orthogonal with respect to each other. The first RF antenna includes a terminating resistor that generates a hotspot among the first set of hotspots and the second RF antenna includes another terminating resistor that generates a hotspot in the second set of hotspots.
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Patent Agency Ranking
公开(公告)号：US11994617B2
公开(公告)日：2024-05-28
申请号：US17349678
申请日：2021-06-16
Applicant: Keysight Technologies, Inc.
Inventor： Dietrich W. Vook , Todd Steven Marshall , Jefferson B. Burch , Gregory S. Lee
CPC classification number: G01S7/4056 , G01S7/40 , G01S7/4069
Abstract: An apparatus is for generating an emulated radar reflection signal of a target moving at a relative velocity. The apparatus includes a radar detector, an emulation transmitter, and a processor. The radar detector is configured to detect radar chirps emitted by a device under test (DUT), where the chirps are emitted at random time intervals. The emulation transmitter is configured to generate emulated radar reflection signals of the target being emulated. The processor is configured to generate control signals at intervals corresponding to the random time intervals at which the radar chirps are emitted by the DUT, where each control signal controls the emulation transmitter to generate a radar reflection signal. A relative phase of the control signals is adjusted according to a duration of each of the random time intervals between successive chirps and a magnitude and sign of the relative velocity of the target.
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公开(公告)号：US20210356561A1
公开(公告)日：2021-11-18
申请号：US17321460
申请日：2021-05-16
Applicant: Keysight Technologies, Inc.
Inventor： Lei Li , Lee A. Barford , Jefferson B. Burch , Todd Steven Marshall , Hong-Wei Kong
IPC: G01S7/40 , G01M17/00 , G01S13/931 , G06F9/455
Abstract: An emulation test system and method are provided for time adjusting emulated echo signals in response to a periodic electromagnetic signal. The method includes generating a scene simulation including a simulated object; generating a simulation frame indicating object transform information regarding the simulated object; calculating positions and velocities of an emulated targets corresponding to the simulated object using the object transform information; generating a ray tracing frame corresponding to the simulation frame indicating the calculated positions and velocities of the emulated targets; predicting a time point in a next feature in a feature pattern of the electromagnetic signal; calculating predicted target information of the simulated object at the predicted time point using the calculated positions and velocities; and generating an echo signal in response to the next burst of the electromagnetic signal using the predicted target information to compensate for latencies introduced by differences between real world and simulation times.
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公开(公告)号：US20190242755A1
公开(公告)日：2019-08-08
申请号：US15887994
申请日：2018-02-03
Applicant: Keysight Technologies, Inc.
Inventor： Gregory Steven Lee , Douglas Michael Baney , Todd Steven Marshall , Gregory Douglas VanWiggeren
Abstract: Illustrative embodiments disclosed herein pertain to a thermal imaging system that includes a thermal imaging sheet having an array of thermal unit cells for generating a thermal footprint in response to receiving an RF signal. The thermal footprint is composed of an array of hotspots having a first set of hotspots indicative of a radiation characteristic of a first polarization component of the RF signal, and a second set of hotspots indicative of a radiation characteristic of a second polarization component of the RF signal. Each thermal unit cell includes a first RF antenna and a second RF antenna oriented orthogonal with respect to each other. The first RF antenna includes a terminating resistor that generates a hotspot among the first set of hotspots and the second RF antenna includes another terminating resistor that generates a hotspot in the second set of hotspots.
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公开(公告)号：US11867832B2
公开(公告)日：2024-01-09
申请号：US17175761
申请日：2021-02-15
Applicant: Keysight Technologies, Inc.
Inventor： Gregory Douglas Vanwiggeren , Todd Steven Marshall , Gregory S. Lee , Natalie Killeen , Christian Bourde
CPC classification number: G01S7/4052 , G01R31/002 , G01S7/4008 , H01Q1/525 , G01S7/4086
Abstract: A miniature radar target simulator (MRTS) and a system comprising a plurality of MRTS's are described. The MRTS and system are useful for emulating echo signals for a radar DUT with reduced interference. Illustrative radar test systems desirably generate the intended (emulated) radar targets and reduce unwanted (“ghost”) signals, which can result in “ghost targets,” and errant/ambient electromagnetic radiation that reduces the performance and reliability of known re-illuminators and systems including same.
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公开(公告)号：US11686814B2
公开(公告)日：2023-06-27
申请号：US17113465
申请日：2020-12-07
Applicant: Keysight Technologies, Inc.
Inventor： Dieter W. Vook , Todd Steven Marshall , Jefferson B. Burch , Gregory S. Lee
IPC: G01S7/40 , G01S13/931 , G01S13/00
CPC classification number: G01S7/4056 , G01S13/931 , G01S7/4095
Abstract: An apparatus is for generating an emulated radar reflection signal of a target. The apparatus includes a radar detector configured to detect a radar signal frame emitted by a device under test (DUT), an emulation transmitter configured to generate an emulated radar reflection signal of a target being emulated, and a processor configured to generate control signals which control the emulation transmitter according to at least one characteristic of the target being emulated. The processor is further configured to determine a current radar parameter among plural possible radar parameters of the radar signal frame of the DUT, and to adapt the control signals which control the emulation transmitter according to the determined current radar parameter of the radar signal frame of the DUT.
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