Keysight Technologies, Inc.

Other

Todd Steven Marshall

Gregory Steven Lee

Jefferson B Burch

Gregory Douglas VanWiggeren

Lei Li

Douglas Michael Baney

Lee Alton Barford

Hong-Wei Kong

Dietrich W Vook

Dieter W Vook

Christian Bourde

Natalie Killeen

Christopher Eaddy

Bob Marshall

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.

Frequency modulated continuous wave (FMCW) radar target emulation with synchronized modulation reflection devices

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.

Separating receive and transmit antennas of a radar test system

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.

Time synchronization and latency compensation for emulation test system

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.

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.

Systems and methods for thermal imaging of RF signals

The child safe cream dispenser is a child-resistant pump-actuated dispenser for topical preparations having an elongated housing, the housing defining a container for holding a supply of cream or other viscous material. A plunger mechanism functions to advance a piston through a one-way ratchet or clutch mechanism so that successive operation of the plunger mechanism causes the piston to advance towards a dispensing opening. A trigger release mechanism disables the plunger mechanism until a release button has cleared the sidewall of the housing. The dispensing outlet may have a cap or a ball valve that is either pivoted or rotated to an open position by operation of the plunger trigger.

Growing community of inventors

Los Gatos, CA, United States of America

Todd Steven Marshall