Electrical/Electronics

cFE/CFS Evolution for Multicore Platforms

Goddard Space Flight Center, Greenbelt, Maryland

This effort ports the Core Flight Executive (cFE)/Core Flight System (CFS) flight software architecture to multicore processor platforms, and provides mission developers with a common, flightready, flexible software environment that supports single, multi-processor, and multicore systems. Currently the cFE/CFS only supports single-core processors.

Posted in: Briefs, TSP, Electronics & Computers, Architecture, Avionics, Communication protocols, Computer software and hardware
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Hermetic Feedthroughs for Mission-Critical Electronics

Sealed cavities are important in applications such as power electronics for missiles aboard ships or on high-altitude flights; automotive charging stations; and high-voltage power generation.

Douglas Electrical Components, Randolph, New Jersey

One of the most common causes of electronics failure is moisture. Because water and electronics do not mix well, several strategies exist to protect mission-critical components from moisture and condensation. One of the most successful methods involves hermetically sealed electronics cavities enabled by moisture-blocking component assemblies such as hermetic feedthrough technology.

Posted in: Briefs, Electronics & Computers, Electronic equipment, Water, Corrosion
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Ultra-High-Power W-Band/F-Band Schottky Diode-Based Frequency Multipliers

These multipliers can be used in millimeter-wave radars or radiometers in national security applications such as standoff personnel screening, mass transit security, and perimeter intrusion.

All-solid-state, room-temperature, multipixel, sub milli meter-wave re ceiv ers are in demand for efficient spatial mapping of a planet’s atmosphere composition and wind velocities for future NASA missions to Venus, Jupiter, and its moons. Roomtemperature operation based on Schottky diode technology is a must in order to avoid cryogenic cooling and enable long-term missions. This technology is also being successfully applied for very-high-resolution imaging radars for standoff detection of concealed weapons. For submillimeter-wave radar imaging, the main issue is that, in order to reach video frame rates with high image pixel density, multi-pixel focal plane transceiver arrays are needed to illuminate targets with many radar beams simultaneously.

Posted in: Briefs, Electronics & Computers, Amplifiers, Imaging and visualization, Radar
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FPGA Reconfiguration with Accelerated Bitstream Relocation

Goddard Space Flight Center, Greenbelt, Maryland

Partial bitstream relocation (PBR) on field programmable gate arrays (FPGAs) is a technique to re-scale parallelism of accelerator architectures at run time and enhance fault tolerance. PBR techniques have focused on reading inactive bitstreams stored in memory, on-chip or off-chip, whose contents are generated for a specific partial reconfiguration region (PRR) and modified on demand for configuration into a PRR at a different location.

Posted in: Briefs, TSP, Electronics & Computers, Architecture, Computer software and hardware, Data exchange
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Real-Time LiDAR Signal Processing FPGA Modules

Goddard Space Flight Center, Greenbelt, Maryland

A scanning LiDAR, by its inherent nature, generates a great deal of raw digital data. To generate 3D imagery in real time, the data must be processed as quickly as possible. One method of discerning time-of-flight of a laser pulse for a LiDAR application is correlating a Gaussian pulse with a discretely sampled waveform from the LiDAR receiver.

Posted in: Briefs, TSP, Electronics & Computers, Imaging and visualization, Lidar
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Advanced, Ultra-Low-Loss, High-Frequency Package Module

This module could improve performance of radiometers, high-resolution spectrometers, radars, and communication receivers and/or transmitters.

As electronic circuits approach submillimeter wavelength frequencies (300 GHz) and higher, the traditional low-loss method of packaging electronic circuits in waveguide modules for guiding the signal requires more attention. The reasons are that circuits at higher frequencies have lower signal power levels due to limited gain and output power of semiconductor devices. As a result, the power lost by signals in the waveguide propagation environment becomes even more important at higher frequencies. In addition, previous efforts have based higher-frequency waveguide modules on existing lower-frequency module concepts and internal components.

Posted in: Briefs, Electronics & Computers, Semiconductor devices, Waveguides
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Next-Generation Electronics Innovations for NASA’s Space and Commercial Future

In 1964, NASA’s Electronics Research Center (ERC) opened in Massachusetts, serving to develop the space agency’s in-house expertise in electronics during the Apollo era. The center’s accomplishments include development of a high-frequency (30-GHz) oscillator, a miniaturized tunnel-diode transducer, and a transistor more tolerant of space radiation. Another development was in the area of holography. At the ERC, holography was “used for data storage, and has permitted a remarkable degree of data compression in the storing of star patterns.”

Posted in: Articles, Aerospace, Electronics, Electronic equipment, Product development
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35A POL Converter

TDK Corporation (San Diego, CA) announced the introduction of the 35 Ampere TDK-Lambda iJA series of POL (Point of Load) non-isolated DC-DC converters. Being PMBus™ compliant and featuring digital control, these converters operate from an 8 to 14 VDC input and can provide output voltages from 0.6 to 3.3V, with a precision set point accuracy of 1%. The surface mount converters occupy only 0.45 square inch of board space, representing an ultra-high power density of 580 Watts per cubic inch. Overall dimensions are 22.9mm x 12.7mm x 9.7mm with a weight of 6.5g. The iJA power module has a typical efficiency of 94% with a 3.3V output, 12V input and 80% loading.

 

Posted in: Products, Electronics & Computers
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Harmonics Calculation Software

Teledyne LeCroy (Chestnut Ridge, NY) has introduced a new Harmonics Calculation option for the Motor Drive Analyzer (MDA800) series. This optional software adds advanced harmonic filtering for AC Input and Drive Output Numeric table measurements; Total Harmonic Distortion (THD) measurement parameters for voltage, current, and power; and a new Harmonic Order table with Spectral waveform displays. The standard Motor Drive Analyzer software provides either Full Spectrum (no harmonic filter applied) or Fundamental Only harmonic filters. The new option adds a Fundamental+N and a Range Filter. The Fundamental+N filter allows you to specify how many (N) harmonics from the fundamental to include in the Numerics table calculations. The Range filter allows you to specify a range starting point other than the fundamental.

Posted in: Products, Electronics & Computers
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1U All-Flash Array

AccelStor (Taipei, Taiwan) has announced its latest flash appliance, NeoSapphire 3505, a 1U rack-mount storage appliance featuring 500K sustained IOPS performance with 5TB usable storage capacity and high-speed InfiniBand connectivity. Utilizing AccelStor’s FlexiRemap flash-management software technology, the compact 1U flash appliance saves rack space while providing outstanding I/O performance. The NeoSapphire 3505 features an InfiniBand FDR 56Gb/s QSFP interface to unlock the full performance of all-flash storage. InfiniBand uses Remote Direct Memory Access (RDMA) to reduce protocol-processing overhead, increasing throughput to tens of gigabits per second and decreasing latencies to sub-microsecond.

Click here to learn more.

Posted in: Products, Electronics & Computers
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