Harry Shaw
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View article: Quantum Compressive Sensing Meets Quantum Noise: A Practical Exploration
Quantum Compressive Sensing Meets Quantum Noise: A Practical Exploration Open
Compressive sensing is a signal processing technique that enables the reconstruction of sparse signals from a limited number of measurements, leveraging the signal's inherent sparsity to facilitate efficient recovery. Recent works on the Q…
View article: Suppressing Polarization Mode Dispersion with the Quantum Zeno Effect
Suppressing Polarization Mode Dispersion with the Quantum Zeno Effect Open
Polarization mode dispersion can introduce quantum decoherence in polarization encoded information, limiting the range of quantum communications protocols. Therefore, strategies to nullify the effect would reduce quantum decoherence and po…
View article: Unfolded Algorithms for Deep Phase Retrieval
Unfolded Algorithms for Deep Phase Retrieval Open
Exploring the idea of phase retrieval has been intriguing researchers for decades due to its appearance in a wide range of applications. The task of a phase retrieval algorithm is typically to recover a signal from linear phase-less measur…
View article: Clock synchronization characterization of the Washington DC metropolitan quantum network (DC-QNet)
Clock synchronization characterization of the Washington DC metropolitan quantum network (DC-QNet) Open
Quantum networking protocols relying on interference and precise time-of-flight measurements require high-precision clock synchronization. This study describes the design, implementation, and characterization of two optical time transfer m…
View article: Deep learning for enhanced free-space optical communications
Deep learning for enhanced free-space optical communications Open
Atmospheric effects, such as turbulence and background thermal noise, inhibit the propagation of light used in ON–OFF keying (OOK) free-space optical (FSO) communication. Here we present and experimentally validate a convolutional neural n…
View article: Deep learning for enhanced free-space optical communications
Deep learning for enhanced free-space optical communications Open
Atmospheric effects, such as turbulence and background thermal noise, inhibit the propagation of coherent light used in ON-OFF keying free-space optical communication. Here we present and experimentally validate a convolutional neural netw…
View article: Generation of polarization entanglement via the quantum Zeno effect
Generation of polarization entanglement via the quantum Zeno effect Open
The quantum Zeno effect reveals that continuous observation of a quantum system can significantly alter its evolution. Here, we present a method for establishing polarization entanglement between two initially unentangled photons in couple…
View article: Quantum Compressive Sensing: Mathematical Machinery, Quantum Algorithms, and Quantum Circuitry
Quantum Compressive Sensing: Mathematical Machinery, Quantum Algorithms, and Quantum Circuitry Open
Compressive sensing is a sensing protocol that facilitates the reconstruction of large signals from relatively few measurements by exploiting known structures of signals of interest, typically manifested as signal sparsity. Compressive sen…
View article: Chaotic Quantum Key Distribution
Chaotic Quantum Key Distribution Open
The ability to send information securely is a vital aspect of today’s society, and with the developments in quantum computing, new ways to communicate have to be researched. We explored a novel application of quantum key distribution (QKD)…
View article: S-Band Transponder Multi-Network Compatibility, Space Environment and Radiation Testing
S-Band Transponder Multi-Network Compatibility, Space Environment and Radiation Testing Open
This paper presents the development and testing of the Software Define Radio (SDR) transceiver to meet the emerging needs for SmallSat communication and navigation. Vulcan Wireless and NASA Goddard Space Flight Center (GSFC) collaborated i…
View article: Polar Coding for Forward Error Correction in Space Communications
Polar Coding for Forward Error Correction in Space Communications Open
Presentation for Polar Coding for Forward Error Correction in Space Communications paper for IAC
View article: Experimental results from the ST7 mission on LISA Pathfinder
Experimental results from the ST7 mission on LISA Pathfinder Open
The Space Technology 7 Disturbance Reduction System (ST7-DRS) is a NASA technology demonstration payload that operated from January 2016 through July 2017 on the European Space Agency’s (ESA) LISA Pathfinder spacecraft. The joint goal of t…
View article: Nonlinear dynamic interpretation of quantum spin
Nonlinear dynamic interpretation of quantum spin Open
In an effort to provide an alternative method to represent a quantum spin, a precise nonlinear dynamics semi-classical model is used to show that standard quantum spin analysis can be obtained. The model includes a multi-body, anti-ferroma…
View article: Securing and auto-synchronizing communication over free-space optics using quantum key distribution and chaotic systems
Securing and auto-synchronizing communication over free-space optics using quantum key distribution and chaotic systems Open
Free-Space Optical (FSO) communication provides very large bandwidth, relatively low cost, low power, low mass of implementation, and improved security when compared to conventional Free-Space Radio-Frequency (FSRF) systems. In this paper,…
View article: NASA Space Network Project Operations Management: Past, Present and Future for the Tracking and Data Relay Satellite Constellation
NASA Space Network Project Operations Management: Past, Present and Future for the Tracking and Data Relay Satellite Constellation Open
The NASA Space Network (SN) Operations began with the launch of the first Tracking and Data Relay Satellite (TDRS-1) on April 4, 1983 with on-orbit operations conducted from the White Sands Ground Terminal (WSGT) in Las Cruces, New Mexico.…
View article: A Cryptographic System Based upon the Principles of Gene Expression
A Cryptographic System Based upon the Principles of Gene Expression Open
Processes of gene expression such as regulation of transcription by the general transcription complex can be used to create hard cryptographic protocols which should not be breakable by common cipherattack methodologies. The eukaryotic pro…
View article: A Clear Antenna on CubeSat for Big Data
A Clear Antenna on CubeSat for Big Data Open
The paper reports the latest development of a clear solution for CubeSat antennas where an X band optically transparent antenna are inkjet printed on a glass that goes on top of the solar panel of a 6U CubeSat. The antenna has an optical t…
View article: Measurement of Error Vector Magnitude (EVM) to Characterize the Impairment of the Tracking and Data Relay Satellite (TDRS) Channel
Measurement of Error Vector Magnitude (EVM) to Characterize the Impairment of the Tracking and Data Relay Satellite (TDRS) Channel Open
A digital signal is transmitted via a carrier wave, it demodulates at a receiver, and locates at an ideal constellation point. However, noise distortion, carrier leakage, and phase noise can force a signal to divert from its ideal position…
View article: NASA Near Earth Network (NEN) and Space Network (SN) CubeSat Communications
NASA Near Earth Network (NEN) and Space Network (SN) CubeSat Communications Open
There has been a recent trend to increase capability and drive down the Size, Weight and Power (SWAP) of satellites. NASA scientists and engineers across many of NASA's Mission Directorates and Centers are developing exciting CubeSat conce…
View article: Integrated Solar-Panel Antenna Array for CubeSats (ISAAC)
Integrated Solar-Panel Antenna Array for CubeSats (ISAAC) Open
Integrated Solar-Panel Antenna Array for CubeSats (ISAAC) is a high gain, efficient, lightweight, conformal Xband antenna array that is integrated with solar panels of a CubeSat. The antenna design is modular and independent from the solar…
View article: Miniaturized Phonon Trap Timing Units for PNT of Cubesats
Miniaturized Phonon Trap Timing Units for PNT of Cubesats Open
This research is directed towards development of a chip-scale timing unit (clock) to be used in new systems that aim to improve the quantity and quality of data transmittal from small spacecrafts. The quantity and quality of data transmiss…
View article: X-Band CubeSat Communication System Demonstration
X-Band CubeSat Communication System Demonstration Open
Today’s CubeSats mostly operate their communications at UHF- and S-band frequencies. UHF band is presently crowded, thus downlink communications are at lower data rates due to bandwidth limitations and are unreliable due to interference. T…
View article: Applying a space-based security recovery scheme for critical homeland security cyberinfrastructure utilizing the NASA Tracking and Data Relay (TDRS) based Space Network
Applying a space-based security recovery scheme for critical homeland security cyberinfrastructure utilizing the NASA Tracking and Data Relay (TDRS) based Space Network Open
Protection of the national infrastructure is a high priority for cybersecurity of the homeland. Critical infrastructure such as the national power grid, commercial financial networks, and communications networks have been successfully inva…