-1
3750
30
Briefs: Software
Tool for Rapid Analysis of Monte Carlo (TRAM) Simulation Data
Spacecraft design is inherently difficult due to the complexity of the systems involved and the expense of testing hardware in a realistic environment. The number and cost of flight tests can be reduced by performing extensive simulation and analysis studies to understand vehicle...
Briefs: Software
Object-Oriented FITS File Interface for MATLAB
The ability to read complicated Flexible Image Transport System (FITS) files in MATLAB was required for analyzing data from the Integrated Science Instrument Module (ISIM) cryovac test campaign for the James Webb Space Telescope (JWST) project.This software was written to fill that specific need, but...
Briefs: Software
Space Station Research Explorer
The Space Station Research Explorer provides current information on International Space Station (ISS) experiments, facilities, and research results through video, photos, interactive media, and in-depth descriptions on iOS and Android devices.
Briefs: Electronics & Computers
Integrated Circuit for Radio Astronomy Correlators Supporting Large Arrays of Antennas
Radio telescopes that employ arrays of many antennas are in operation, and ever-larger ones are being designed and proposed. Signals from the antennas are combined by cross-correlation. While the cost of most components of the telescope is proportional to the...
Briefs: Electronics & Computers
Fabrication of Silicon-Leg Isolated Bi-Cr Thermopiles
The objective of this innovation was to develop a methodology of fabricating thermopile detectors using standard semiconductor fabrication techniques. The goal was to develop a fabrication process that minimized the roughening of the Si legs during patterning of the metallic couples, and to...
Briefs: Electronics & Computers
Current Source Logic Gate
High-temperature electronic integrated circuits have been demonstrated in silicon carbide (SiC) depletion mode MESFETs. This process is only capable of producing depletion mode n-channel MESFET transistors. With only this type of transistor, designing a logic gate is a challenge. A previous logic gate design that can be...
Briefs: Electronics & Computers
Design of Double Layer Rectenna Array for Fault Isolation of Schottky Diode in Operation Beyond V-Band Frequencies
Microwave power transmission using rectenna technology has attracted a strong interest in conjunction with wireless electric power delivery to infrastructure and subjects located at a remote place. A typical rectenna, which is a major...
Briefs: Materials
Hierarchical Support for Nanocatalysts
This work focused on enhancing catalyst activity and durability by developing a method to control size, dispersion, and exposure. Existing nanocatalysts are typically fabricated in bulk or powder form. There are monolithic catalysts, but they rely on meso-porous materials as supports. Bulk nanocatalysts suffer...
Briefs: Software
Framework Software Library Version 1.0
Within the space community, there is a need to exchange a wide variety of data between partner organizations. The Framework software library can be used to exchange any type of data between partners. It provides these core capabilities:
Briefs: Information Technology
Crisis Mapping Toolkit (CMT) V1
The increasing availability of accessible geospatial data with a turnaround time of days or hours provides unique opportunities for responders to better plan responses to crises, and to inform victims, friends, and relatives of local crisis conditions. However, this raw data is not readily interpretable by the...
Briefs: Software
Real-Bogus Machine Learning Systems at the Intermediate Palomar Transient Factory
The intermediate Palomar Transient Factory (iPTF) is a wide-field sky survey of the optical transient sky (e.g., supernovae, variable stars) that uses image subtraction for the discovery of astronomical transients. Astronomical transients, such as supernovae, are only...
Briefs: Information Technology
Scalable Gaussian Process Regression
Block GP is a Gaussian Process regression framework for multimodal data that can be an order of magnitude more scalable than existing state-of-the-art nonlinear regression algorithms. The framework builds local Gaussian Processes on semantically meaningful partitions of the data and provides higher prediction...
Briefs: Software
MBSE-Driven Systems Engineering Visualization Suite
There is a need to define the information architecture, ontologies, and patterns that drive the construction and architecture of Model-Based Systems Engineering (MBSE) models, but less clarity is given to the logical follow-on of that effort: how to practically leverage the resulting semantic...
Briefs: Information Technology
Python Turbulence Detection Algorithm (PyTDA)
This software, written in the Python programming language, estimates turbulence from Doppler radar data. It ingests radar data using the Department of Energy’s Py-ART open-source radar software toolkit.
Briefs: Imaging
One-Micron (1064-nm) Planar External Cavity Laser (PLANEX)
A highly reliable, very low-phase and low-amplitude-noise laser is required as an oscillator for the LISA mission. A commercial product made by Redfern Integrated Optics met these requirements (1550 nm PLANEX External Cavity Laser), but it operated at 1.5 microns, not the required LISA...
Briefs: Sensors/Data Acquisition
Micro Cylindrical Ion Trap Micro Mass Spectrometer Instrument System
The goal of this work was to advance the development of new, extremely small (≈2 cm3), low-power (≈3 W), and low-cost micro mass spectrometer instrument systems (μMSIS) through the application of microelectro-mechanical system (MEMS) design and fabrication, and microsystem...
Briefs: Imaging
Invertible Time Invariant Linear Filtering (InTILF) Method for Pattern Detection and Modeling of Stochastic One- or Two- Dimensional Data
X-ray astronomy offers the opportunity to observe important phenomena, including the early accretion of massive black holes and detecting diffuse ionized intergalactic gas that is heated to X-ray temperatures...
Briefs: Photonics/Optics
High-performance thermal imagers like Mars Climate Sounder (MCS) on the Mars Reconnaissance Orbiter (MRO) and the Diviner Lunar Radiometer Experiment on the Lunar...
Briefs: RF & Microwave Electronics
High-Data-Rate Platform to Capture and Analyze Raw Baseband Clock/Data
The Space Communications and Navigation (SCaN) Testbed has a need to capture and analyze high-datarate (<2 Mbps required) baseband information sent over RF by the JPL Software-Defined Radio (SDR). An RF4425 front end, coupled with a MicroGate Synclink USB and custom C++...
Briefs: RF & Microwave Electronics
V-FASTR Radio Transient Classifier
The V-FASTR (VLBA Fast Transient Experiment) system was motivated by the desire to monitor the radio sky for interesting transient events. To be confident that no interesting extragalactic event is missed, every VFASTR candidate requires human review and evaluation. Candidates consist of pulsar pulses, spurious...
Briefs: RF & Microwave Electronics
Wideband, Dual-Polarized, Ultra-Low-Noise Focal Plane Array Feed for Active/Passive Microwave Remote Sensing
NASA missions utilize active, passive, or both, microwave sounders with a large reflector antenna as an important component. In most of these applications, design engineers have realized that desirable science requirements (spatial and...
Briefs: RF & Microwave Electronics
RF Source Modifications to Improve Performance of an Electronegative Plasma Thruster
In traditional gridded electrostatic ion thrusters, positively charged ions are generated from a plasma discharge of noble gas propellant and accelerated to provide thrust. A separate electron source, typically a neutralizer cathode that consumes propellant, is...
Briefs: RF & Microwave Electronics
Simple Impedance Matched Planar Microwave Blocking Filter
Thermal blocking filters find wide use in cryogenic applications ranging from quantum computing to ultra-low-noise detectors. They can be used to provide the environmental isolation between cooled devices and the warmer temperature supporting bias and readout circuitry. In particular, they...
Briefs: RF & Microwave Electronics
Microwave Regenerative Sorbent-based Hydrogen Purifier (MRSHP)
The Microwave Regenerative Sorbent-based Hydrogen Purifier (MRSHP) is a unique microwave power-based technology demonstrator created for the purification of a hydrogen product stream produced by the Plasma Pyrolysis Assembly (PPA). The MRSHP prototype uses 2.45-GHz microwave power to...
Briefs: RF & Microwave Electronics
Low-Power Wireless Body Area Network (WBAN) Communication System
NASA seeks semi-passive, RFIDenabled wearable tags for inventory tracking and astronaut body area network applications. Wearable sensor tags can be printed on astronaut clothing or suits, and are powered by printed thin film batteries and/or via energy harvesting. Energy is harvested...
Briefs: RF & Microwave Electronics
RF System MATLAB Model Simulation Using a Variety of Data Sources
During the development of the Soil Moisture Active-Passive (SMAP) High-Power Amplifier (HPA), a power glitch was observed with the characteristic of producing small 0.1-0.3 dB jumps in power across temperature. In order to troubleshoot this glitch behavior, a nonlinear model that...
Briefs: Mechanical & Fluid Systems
Lightweight, Reusable Payload Launch and Transportation Latch
This innovation addresses the problem of automatic engagement and disengagement of payloads from their transport vehicle when lifted by a crane or other material handling device. The prior state-of-the-art is in material handling devices that require personnel to activate the latch, or...
Briefs: Mechanical & Fluid Systems
Structural Assembly Incorporating Integral Thermal Heat Spreader for Cold Plate Cooling
In a structural cold plate, typically there is a structural member such as a honeycomb panel or a brazed sandwich assembly that provides the structural strength, and at least one cold plate that cools equipment attached to the structural member. The cold plate...
Briefs: Mechanical & Fluid Systems
Advanced Magnetostrictive Regulator, Valve, and Force-to-Angle Sensor
Typical aerospace rocket engines use valves to control the flow and pressures of propellant and pressurants. These typical valves are designed to operate with a mechanical, electromechanical, or pneumatic operator. They all have at least one, and often multiple, penetrations from...
Top Stories
Blog: Design
A Stretchable OLED that Can Maintain Most of Its Luminescence
INSIDER: Design
Advancing All-Solid-State Batteries
Blog: Power
My Opinion: We Need More Power Soon — Is Nuclear the Answer?
Blog: Energy
Batteries that Can Withstand the Cold
Quiz: Power
Blog: Robotics, Automation & Control
Microscopic Swimming Machines that Can Sense, Respond to Surroundings
Webcasts
On-Demand Webinars: Electronics & Computers
Advantages of Smart Power Distribution Unit Design for Automotive &...
Upcoming Webinars: Unmanned Systems
Quiet, Please: NVH Improvement Opportunities in the Early Design...
Upcoming Webinars: AR/AI
From Spreadsheets to Insights: Fast Data Analysis Without Complex...
Upcoming Webinars: Defense
Cooling a New Generation of Aerospace and Defense Embedded...
Upcoming Webinars: Software
Beyond AI-Copy-Paste Engineering: Advanced AI-Integration Success...
Upcoming Webinars: Energy
