Communications

Tailor-made Computing Solutions Require Diverse I/O Functions

More than ever, users from industry and transportation expect the full system solution, but no longer want to have to worry about the cumbersome configuration and integration of individual hardware components and adapting the software. There is a very simple reason for this: the system supplier of their choice reduces the time to market and is also responsible for the entire system at the same time.

Posted in: White Papers, Communications, Electronics, Electronics & Computers, Electronics & Computers, Software

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Using a Power Grid as an Extremely Large Antenna for Geophysical Imaging

Geomagnetic storms drive geomagnetically induced currents (GICs) in high-voltage power transmission systems. GICs thus carry information about the near-space environment conditions. The U.S. high-voltage power transmission system was used as an extremely large antenna to extract unprecedented spatiotemporal space physical and geological information from distributed GIC observations.

Posted in: Briefs, Tech Briefs, Communications

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Heterogeneous Spacecraft Networks

Heterogeneous Spacecraft Networks (HSNs) are network environments in which spacecraft from different missions and institutions can communicate with each other at a low cost and with low impact on overall system resources. The technology of heterogeneous wireless networks has yet to be extended to space networks, where multiple spacecraft operating with various platforms use wireless technology to communicate. This communication need is growing given the increasing number of small satellites or nanosats being launched. Enabling such communication is significant, because connecting spacecraft offers a multiplier effect, connecting limited-capability spacecraft from small countries and institutions with more established networks that offer the possibility of an abundance of useful information for all concerned. In a growing sector where commercial space is ascending, allowing facile data transfer between a wide variety of space hardware and commercial communication platforms will soon be a necessity.

Posted in: Briefs, Communications

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Space Optical Communications Using Laser Beams

Applications include use in CubeSat communications, the spacecraft industry, and in small satellites. NASA has developed a new technology for space optical communications, including communications from the Earth to spacecraft in Earth orbit and in deep space, such as at the Moon and Mars. The innovation changes the architecture of space optical communications so that a new laser beam pointing technology is used to improve optical data transmissions from spacecraft. This technology will detect a signal laser beam and then return a modulated laser beam to the ground terminal or other transmitter station in a new way. This new design can replace current methods that either use a laser together with a pointing, acquisition, and tracking (PAT) procedure in the spacecraft, or a powerful ground-based laser with a retro-reflector in the spacecraft.

Posted in: Briefs, Communications

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Hybrid Loop Element Design for Enhanced High-Frequency Reflector/Reflectarray Performance

New design enables the shared aperture design approach. The purpose of this invention is to provide a novel, low-loss, dual-band reflectarray element design that is transparent and low-loss across one frequency band (Ka-band in the initial application), and provides the phasing and beam collimation capability across the other band (W-band in the initial application). The surface comprises a periodic lattice of “hybrid loop” reflectarray elements that is phased to collimate a beam in a manner similar to that of a phased array. The reflectarray surface can be designed with arbitrary feed source positioning, which alleviates focal plane line contention between the two bands and enables the shared aperture design approach.

Posted in: Briefs, Communications

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Hermetic Feedthroughs Safeguard Mission-Critical Electronics

Experts specializing in electronics failure analysis can list a host of reasons for various malfunctions, but one of the most common causes is simple 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 of protecting key components from water hazards involves hermetically sealed electronics cavities—enabled by moisture-blocking component assemblies such as hermetic feedthrough technology.

Posted in: White Papers, Aerospace, Communications, Defense

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The Synergy of Engineering

At the Hannover Messe trade fair in Germany, Eplan Software & Service, with its affiliate company Cideon, introduced Syngineer, an innovative communication and information platform that integrates mechanical engineering, software engineering, and controls engineering through one mechatronic structure. Eplan, a sister company of Rittal Corporation in the Friedhelm Loh Group, offers Syngineer as a solution for simplifying synchronization across all three disciplines, accelerating design engineering and development.

Posted in: Articles, Communications, Electronics & Computers, Software

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