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Briefs: Electronics & Computers
Advanced Pulse Compression System and Testbed
Detection of low-level water clouds from space is one of the outstanding challenges in radar remote sensing. Spaceborne remote sensing is the only means of assessing the distribution and variability of cloud cover on a global basis. Uncertainties in models of the Earth’s heating budget will persist...
Briefs: Electronics & Computers
This innovation is an electric field “illumination” system that is a companion component to the e-Sensor. This generator, when combined with the e-Sensor, enables a new, nondestructive inspection...
Briefs: Mechanical & Fluid Systems
Various applications exist where high-pressure valves are required, but the problem for control of such valves lies in that they have to move against a strong...
Briefs: Mechanical & Fluid Systems
Safely Testing Parachute-Based Extraction Systems
This invention relates to the safe, reliable, and repeatable testing under external load of the Extraction Force Transfer Coupling (EFTC) currently used in the extraction of airdrop platforms from both the C-17 and C-130 cargo transport aircraft. The invention enables functional testing of the EFTC...
Briefs: Mechanical & Fluid Systems
Reducing stiffness-induced gear noise and making lighter-weight gearing components would be a substantial advantage over the current all-metallic configuration. The use of composites to join metallic hubs to the metallic gear rim...
Briefs: Aerospace
Flap Side Edge Liners for Airframe Noise Reduction
One of the more critical constraints to the continued growth of air traffic is the related concern regarding aircraft noise. This concern has resulted in increasingly stringent noise restrictions for airports, both nationally and internationally. One of the major stretch goals for NASA is to...
Briefs: Aerospace
GEO-CAPE Airborne Simulator (GCAS)
This IRAD (Internal Research and Development) project was conceived as an aircraft instrument and designed with specifications that are closely aligned with the science requirements of the Geostationary Coastal and Air Pollution Events (GEO-CAPE) mission. The work has been used to both advance the technology...
Briefs: Aerospace
Mars Science Laboratory Flight Software
Mars Science Laboratory (MSL) flight software is designed to control all onboard functions of the flight system, consisting of three primary stages — cruise, entry-descent-landing (EDL), and rover — for the three mission phases. These three stages have common as well as distinct mission requirements that...
Briefs: Aerospace
Current trends indicate the significant increase in National Airspace System (NAS) flight congestion and delays. The Airspace Concepts Evaluation System (ACES) provides a NAS modeling and simulation...
Briefs: Aerospace
MAVEN Flight and Ground Software
This software was developed for GSFC’s MAVEN (Mars Atmosphere and Volatile EvolutioN) program. The source of the MAVEN software was previously NASA program baselines for Juno, GRAIL, and MRO. Reused and re-engineered code from previous programs was combined with some new code to form the MAVEN program software...
Briefs: Aerospace
Prediction of Visual Acuity from Wavefront Aberrations
Visual acuity (clearness of vision) usually is measured by an eye doctor using an eye chart. It measures the smallest letters that can be reliably identified by the patient at a specified distance. The traditional test requires the patient to look and report which letters they see.
Briefs: Medical
The disclosed device provides key elements to enabling compact exercise machines that overcome many of the disadvantages of the current spacesuit, as well as medical prosthetics...
Briefs: Information Technology
Time Series Product Tool (TSPT) Version 2.0
The Time Series Product Tool (TSPT) is a MATLAB-based software application that computes and displays high-quality vegetation and environmental monitoring indices from high temporal revisit rate Moderate resolution Imaging Spectroradiometer (MODIS) and other satellite sensors. The original purpose of the...
Briefs: Information Technology
NASA Data Acquisition System (NDAS)
The test complexes at John C. Stennis Space Center (SSC) require reliable and accurate data acquisition in order to analyze the results of rocket engine tests. Acquisition systems include high-speed data, low-speed data, event monitoring, and video feeds. In order to obtain accurate data, routine calibrations...
Briefs: Software
The motivation for this research is the fact that, for a variety of reasons, networks and their existing authentication and confidentiality infrastructure are becoming more...
Briefs: Information Technology
Flight Processor Virtualization for Size, Weight, and Power Reduction
This work demonstrated the cost-saving and fault-tolerant benefits of virtualization technology by consolidating the flight software from multiple flight processors into a single virtualized system. In this study, a flight software system that was originally deployed on six...
Briefs: Software
Massively Parallel Dantzig-Wolfe Decomposition Applied to Traffic Flow Scheduling
Traffic flow management (TFM) of the National Airspace System (NAS) endeavors to deliver flights from their origins to their destinations while minimizing delays and respecting all capacities. There are several models for solving this problem. Some models aggregate...
Briefs: Information Technology
Mission Control Technologies (MCT)
MCT enables users to compose software from objects that can be assembled by end users to create integrated functionality. Applications are eliminated in favor of compositions of “live objects” that can be combined in different ways for different users and missions as required, in contrast to the more...
Briefs: Information Technology
Design of Rate-Compatible Protograph LDPC Codes
The most common way to generate a rate-compatible family of codes is puncturing. In this method, one starts with a low-rate mother code and then selectively discards some of the coded bits to arrive at higher-rate codes. This approach is simple, but is not free of problems. Specifically, the mother...
Briefs: Information Technology
In commercial aviation, there have been several recent cases of unstabilized approaches that have resulted in crash landings short of the runway. Some of the direst consequences of these incidents may...
Briefs: Information Technology
Rapid Prototyping Lab (RPL) Generic Display Engine
Spacecraft display software is very costly and requires extensive testing and certification. Much testing must be repeated if the display software is changed in any way. Additionally, hand-coded displays are costly to create and maintain. For certain types of display formats with limited graphical...
Briefs: Physical Sciences
Nanosensor/Cellphone Hybrid for Detecting Chemicals and Concentrations
Nanosensors have been developed for chemical detection using carbon nanotubes (CNTs). Unlike other chemical sensors, this solid-state approach requires no reagents and can be refreshed with a solid-state ultraviolet (UV) diode. The sensors possess high sensitivity (ppbv), fast...
Briefs: Physical Sciences
Coated or Doped Carbon Nanotube Network Sensors as Affected by Environmental Parameters
Chemical sensors have been developed over the past decades to detect gases and vapors at various concentration levels for deployment in a wide range of industrial applications. The detection usually centers on a change of a particular property or status of the...
Briefs: Physical Sciences
Regenerable Internal CO Scrubber for Hydrogen Sensors
Amperometric electrochemical sensors are commonly used for the detection of carbon monoxide (CO) and hydrogen (H2) in air. The electrochemistry of heterogeneous CO and H2 oxidations is similar enough that the sensors show significant cross-sensitivities between the two gases. Thus, in...
Briefs: Sensors/Data Acquisition
Nanostructure Sensor Determines Presence and Concentration of a Target Molecule in Fluid
Several methods are presently being developed to sense the presence of a target molecule in small or modest concentration in a fluid. However, estimation of the concentration of the target molecule is unavailable where the fluid is substantially motionless...
Briefs: Physical Sciences
Floating Ultrasonic Transducer Inspection System for Nondestructive Evaluation
This floating ultrasonic transducer inspection system is based on a “momentary touching” scheme wherein the ultrasonic transducer is in contact with the structure being scanned for a relatively short time while performing the measurement. A vibrating element is a...
Briefs: Physical Sciences
Vacuum chamber testing at large facilities can require hundreds of instruments, necessitating even more feedthroughs. The number of instruments and sensors that can be fed into a vacuum...
Briefs: Sensors/Data Acquisition
Miniaturized Schottky Diode Sensors for Hydrogen and Hydrocarbon Detection at High Temperatures
A miniaturized Schottky diode hydrogen and hydrocarbon sensor with the structure of catalytic metal-metal oxide-silicon carbide (SiC) has been developed. The major innovation of this work is the use of the metal oxide, palladium oxide (PdOx), as a...
Briefs: Physical Sciences
Analog Ceramic Isolated Voltage Sensor
Galvanic isolated monitoring of voltages for launch vehicle, missiles, and space-deployed systems can be very challenging. Radiation exposure makes use of optics-based sensors difficult, as they can latch-up and become corrupted by the radiation environment; such devices can moreover be thermally challenged....
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Webcasts
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Advantages of Smart Power Distribution Unit Design for Automotive &...
Upcoming Webinars: Unmanned Systems
Quiet, Please: NVH Improvement Opportunities in the Early Design...
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Cooling a New Generation of Aerospace and Defense Embedded...
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Beyond AI-Copy-Paste Engineering: Advanced AI-Integration Success...
Upcoming Webinars: Energy
