Keyword: People and personalities

Briefs: Software
Convex Hull-Based Plume and Anomaly Detection

A number of deep space missions have imaged plumes at Io, Enceladus, and other smaller bodies. These phenomena provide valuable information regarding these bodies. To date, this imagery has been captured fortuitously. The ability to utilize onboard processing to conduct campaigns capturing large...

Briefs: Test & Measurement
JWST Integrated Simulation and Test (JIST) Core

The James Webb Space Telescope (JWST) Integrated Simulation and Test (JIST) environment is a software-only system simulator that provides an environment to exercise JWST flight software subsystems and interfaces. JIST is capable of executing the unmodified flight software binaries in an operational...

Briefs: Test & Measurement
JWST IV&V Simulation and Test (JIST) Solid State Recorder (SSR) Simulator

As described in “JWST Integrated Simulation and Test (JIST) Core” (GSC-16739-1) on page 25, the JIST system is a software-based simulator that uses the James Webb Space Telescope (JWST) operational ground system, ground system command/telemetry databases, simulated...

Briefs: Electronics & Computers
Sensor for Spatial Detection of Single- Event Effects in Semiconductor-Based Electronics

Ionizing radiation has a detrimental effect on digital electronics that need to operate in extraterrestrial environments. As space missions become longer and more complex, there is a need for flight computers that can withstand harsh radiation environments...

Briefs: Electronics & Computers
Automated Generation of Adaptive Filter Using a Genetic Algorithm and Cyclic Rule Reduction

Modern datasets consisting of retrievals from space-based missions have target results, but often are accompanied by hundreds or thousands of other retrieved parameters or facts regarding a particular retrieval (e.g., pressure, temperature, spectral...

Briefs: Medical
Visual Image Sensor Organ Replacement

This innovation is a system that augments human vision through a technique called “Sensing Super-position” using a Visual Instrument Sensory Organ Replacement (VISOR) device. The VISOR device translates visual and other sensors (i.e., thermal) into sounds to enable very difficult sensing tasks.

Briefs: Electronics & Computers
Centering a DDR Strobe in the Middle of a Data Packet

The Orion CEV Northstar ASIC (application-specific integrated circuit) project required a DDR (double data rate) memory bus driver/receiver (DDR PHY block) to interface with external DDR memory. The DDR interface (JESD79C) is based on a source synchronous strobe (DQS\) that is sent along with...

Briefs: Mechanical & Fluid Systems

To achieve power of 250 kW or greater, a large compression ratio of stowed-to-deployed area is needed. Origami folding patterns were used to inspire the folding of a solar array to achieve...

Briefs: Medical
Enabling Microliquid Chromatography by Microbead Packing of Microchannels

The microbead packing is the critical element required in the success of onchip microfabrication of critical microfluidic components for in-situ analysis and detection of chiral amino acids. In order for microliquid chromatography to occur, there must be a stationary phase...

Briefs: Software
Cross Support Transfer Service (CSTS) Framework Library

Within the Consultative Committee for Space Data Systems (CCSDS), there is an effort to standardize data transfer between ground stations and control centers. CCSDS plans to publish a collection of transfer services that will each address the transfer of a particular type of data (e.g.,...

Briefs: Information Technology
Calculation of Operations Efficiency Factors for Mars Surface Missions

For planning of Mars surface missions, to be operated on a sol-by-sol basis by a team on Earth (where a “sol” is a Martian day), activities are described in terms of “sol types” that are strung together to build a surface mission scenario. Some sol types require...

Briefs: Information Technology
Fuzzy Neuron: Method and Hardware Realization

Simple and effective learning functions and adaptive elements can be placed into small hardware systems to include instruments for space, bioimplantable devices, and stochastic observers.

Briefs: Information Technology
Frequency-Modulated, Continuous-Wave Laser Ranging Using Photon-Counting Detectors

Optical ranging is a problem of estimating the round-trip flight time of a phase- or amplitude-modulated optical beam that reflects off of a target. Frequency-modulated, continuous-wave (FMCW) ranging systems obtain this estimate by performing an interferometric...

Briefs: Physical Sciences
Planetary Polarization Nephelometer

Aerosols in planetary atmospheres have a significant impact on the energy balance of the planets, yet are often poorly characterized. An in situ instrument was developed that would provide more diagnostic information on the nature of aerosols it encountered if deployed on a planetary descent probe. Previous...

Briefs: Photonics/Optics
A High-Repetition-Rate Seeded Optical Fiber Amplifier (SOFiA) for the LIST Mission and Next-Generation Satellite Laser Ranging

A document describes a fiber/solid-state hybrid seeded regenerative amplifier capable of achieving high output energy with tunable pulse widths for satellite laser ranging (SLR) applications. The diode-pumped solid-state...

Application Briefs: Manufacturing & Prototyping

New hardware built by research engineers at the U.S. Army Research Laboratory (ARL) is helping NASA retrieve experimental images otherwise lost at sea. The hardware weighs less than two pounds, and...

Who's Who: Aerospace

David Wing is the principal investigator for the Traffic Aware Strategic Aircrew Requests (TASAR) concept and software application. The cockpit technology,...

Articles: Aerospace

I recently had the chance to spend a day at NASA’s Johnson Space Center in Houston with the ten winners of the Speed2Design contest sponsored by Littelfuse, a Chicago-based circuit protection company....

Briefs: Electronics & Computers

Four application specific integrated circuits (ASICs) that provide sensing, actuation, and power conversion capabilities for distributed control in a high-temperature (over 200...

Briefs: Manufacturing & Prototyping
Thermo-Mechanical Methodology for Stabilizing Shape Memory Alloy Response

This innovation is capable of significantly reducing the amount of time required to stabilize the strain-temperature response of a shape memory alloy (SMA). Unlike traditional stabilization processes that take days to weeks to achieve stabilized response, this innovation...

Articles: Test & Measurement

Are the shoes you’re wearing really made of leather? Is the table nearby made of wood? How can you be sure? These questions may seem trivial in everyday life, but knowing the precise...

Who's Who: Aerospace

Jim Lux is task manager on FINDER (Finding Individuals for Disaster and Emergency Response), a portable radar device that detects heartbeats and breathing of victims trapped...

Briefs: Software
Workflow-Based Software Development Environment

The Software Developer’s Assistant (SDA) helps software teams more efficiently and accurately conduct or execute software processes associated with NASA mission-critical software. SDA is a process enactment platform that guides software teams through project-specific standards, processes, and...

Briefs: Information Technology
Spatial Statistical Data Fusion (SSDF)

As remote sensing for scientific purposes has transitioned from an experimental technology to an operational one, the selection of instruments has become more coordinated, so that the scientific community can exploit complementary measurements. However, technological and scientific heterogeneity across...

Application Briefs: Software

GrammaTech, a software developer specializing in software assurance tools and cybersecurity technology, received an award from NASA to prototype a specification editing and discovery tool (SPEEDY) for C/C++...

Who's Who: Aerospace

Dr. Butler Hine is the project manager of the Lunar Atmosphere and Dust Environment Explorer (LADEE) spacecraft. The vehicle, successfully launched in September,...

Briefs: Lighting

Commercial uses for ultraviolet (UV) light are growing, and now a new kind of LED under development at The Ohio State University could lead to more portable and low-cost...

Research News: Lighting

Researchers in Japan have developed a new type of photodiode that can detect in just milliseconds a certain type of high-energy ultraviolet light, called UVC, which is powerful...

Research News: Lighting

Tiny silicon crystals caused no health problems in monkeys three months after large doses were injected, marking a step forward in the quest to bring such materials into clinics as...