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Search Publications by: Josh Gordon (Fed)

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Displaying 1 - 25 of 177

Compact Homodyne Extrapolation System (CHEXS)

October 27, 2024
Author(s)
Joshua Gordon, Benjamin Moser
We present on a novel gain extrapolation antenna range, the Compact Homodyne Extrapolation System (CHEXS), that can achieve absolute antenna gain measurements with uncertainties of 0.1 dB or better with as few at 10 data points and is significantly more

Multi-frequency Antenna Metrology with Sparse Measurements

July 10, 2024
Author(s)
Marc Valdez, Angela Folz, Michael Wakin, Joshua Gordon
We examine different approaches for compressive sensing in broadband antenna radiation pattern measurements, a common tool in antenna metrology. We focus on spherical near-field measurements and seek improved reductions in the needed number of measurements

Rapid Automated Antenna Alignment on Robotic Antenna Ranges

March 17, 2024
Author(s)
Benjamin Moser, Joshua Gordon
We present methods to automate AUT-probe alignment on a robotic antenna range using iterative fitting methods. Data collected during pose refinement is used to characterize offsets to the robot motion frame and the end effector measurement frame with

Robotic Antenna Measurements

December 11, 2023
Author(s)
Josh Gordon
Robots excel at manipulating objects with 6 degree of freedom movement. A combination of well-defined kinematics, optimized control loops, and robust mechanical architecture make robots a versatile and capable platform for a range of applications where

NIST's Antenna Gain and Polarization Calibration Service Reinstatement

October 9, 2023
Author(s)
Josh Gordon, Benjamin Moser
After a five-year renovation of the National Institute of Standards and Technology (NIST) Boulder, CO, antenna measurement facility, the Antenna On-Axis Gain and Polarization Measurements Service SKU63100S was reinstated with the Bureau International des

Unified Parameterization and Calibration of Serial, Parallel, and Hybrid Manipulators

November 17, 2021
Author(s)
Josh Gordon, Benjamin Moser, Ben Moser, Andrew Petruska
In this work, we present methods allowing parallel, hybrid, and serial manipulators to be analyzed, calibrated, and controlled with the same analytical tools. We introduce a general approach to describe any robotic manipulator using established serial-link

A Multi-Band Rydberg-Atom Based Receiver/Antenna: AM/FM Stereo Reception

April 2, 2020
Author(s)
Christopher L. Holloway, Matthew T. Simons, Joshua A. Gordon
With the re-definition of the International System of Units (SI) that occurred in October of 2018, there has recently been a great deal of attention in the development atom-base sensors for metrology applications. In particular great progress had been made

Summary: Workshop on Machine Learning for Optical Communication Systems

March 26, 2020
Author(s)
Joshua A. Gordon, Abdella Battou, Michael P. Majurski, Dan Kilper, Uiara Celine, Massimo Tonatore, Joao Pedro, Jesse Simsarian, Jim Westdorp, Darko Zibar
Optical communication systems are expected to find use in new applications that require more intelligent and automated functionality. Optical networks are needed to address the high speeds and low latency of 5G wireless networks. The analog nature of

Workshop on Machine Learning for Optical Communication Systems: a summary

March 8, 2020
Author(s)
Joshua A. Gordon, Abdella Battou, Dan Kilper
A summary and overview of a public workshop on machine learning for optical Communication systems held on August 2nd 2019, by the Communications Technology Laboratory at the National Institute of Standards and Technology in Boulder, CO.

Embedding a Rydberg Atom-Based Sensor into an Antenna for Phase and Amplitude Detection of Radio Frequency Fields and Modulated Signals

October 22, 2019
Author(s)
Christopher L. Holloway, Matthew T. Simons, Abdulaziz H. Haddab, Joshua A. Gordon, David R. Novotny
We demonstrate a Rydberg atom-based sensor embedded in a parallel-plate waveguide (PPWG) for amplitude and phase detection of a radio-frequency (RF) electric field. This embedded atomic sensor is also capable of receiving modulated communications signals

Applications with a Rydberg Atom-based Radio Frequency Antenna/Receiver

September 2, 2019
Author(s)
Matthew T. Simons, Abdulaziz H. Haddab, Joshua A. Gordon, Christopher L. Holloway
We discuss several recent extensions of quantum radio frequency (RF) electric field sensors to antenna/receiver applications. These Rydberg atom-based sensors have been previously studied for SI-traceable RF field measurements. We demonstrate the reception

Detecting and Receiving Phase-Modulated Signals With a Rydberg Atom-Based Receiver

September 2, 2019
Author(s)
Christopher L. Holloway, Matthew T. Simons, Joshua A. Gordon, David R. Novotny
Recently, we introduced a Rydberg-atom based mixer capable of detecting and measuring of the phase of a radio-frequency field through the electromagnetically induced transparency (EIT) and Autler-Townes (AT) effect. The ability to measure phase with this