Electronics & Computers

University Researchers Give Self-Driving Vehicles a Boost

While the future of vehicles may be driverless, West Virginia University is steering the technology in the right direction. More and more cars being sold today include semi-automated features ranging from self-parking to lane departure to automatic braking, but fully automated vehicles are on the horizon. WVU’s researchers are working to improve vehicle and smart infrastructure technology that underpins their development and their benefit to communities in areas such as safety, energy, traffic, economic opportunity and more. One of those researchers is Victor Fragoso, an assistant professor in the Lane Department of Computer Science and Electrical Engineering, whose research is focused on improving the artificial intelligence of autonomous agents, which includes driverless vehicles.

Posted in: News, Automotive, Defense, Electronics & Computers, Robotics, Data Acquisition, Detectors, Sensors, Transducers, Automotive

Antenna Basics

The antenna is the most intrinsic component of all RF systems, yet the principles of antenna design and wave propagation are rarely discussed outside the entry level engineering classes. Rohde & Schwarz has developed an educational white paper on Antenna Basics to reteach the basic principles in a simplified manner.

Posted in: White Papers, White Papers, Aeronautics, Defense, Electronics & Computers, RF & Microwave Electronics

Sensitivity Simulation of Compressed Sensing Based Electronic Warfare Receiver Using Orthogonal Matching Pursuit Algorithm

Electronic Intelligence Receiver (ELINT) is an important component in electronic warfare (EW) and layer sensing. The information it provides by constant surveillance can be used to detect, track and classify signals across the electromagnetic spectrum. The proper identification and reaction to the threat can avoid disaster and assure spectrum dominance for Air Force systems.

Posted in: Briefs, Aerospace, Electronics & Computers

Experimental Box Could Track Nuclear Activity by Rogue Nations

Researchers at the Virginia Tech College of Science are carrying out a research project at Dominion Power’s North Anna Nuclear Generating Station in Virginia that could lead to a new turning point in how the United Nations tracks rogue nations that seek nuclear power. The years-long project centers on a high-tech box full of luminescent plastic cubes stacked atop one another that can be placed just outside a nuclear reactor operated by, say, Iran. The box would detect subatomic particles known as neutrinos produced by the reactor, which can be used to track the amount of plutonium produced in the reactor core.

Posted in: News, Data Acquisition, Defense, Electronics & Computers, Detectors, Sensors

Researchers Print the Unprintable: Kapton

Kapton, a material used in electronics and aerospace applications, has only been available in sheet form. Researchers from Virginia Tech have found a way to 3D-print a polymer with Kapton's structural characteristics.

Posted in: News, News, Aerospace, Electronic Components, Electronics, Electronics & Computers, 3 D Printing & Additive Manufacturing, Coatings & Adhesives, Materials

Airborne Sense-and-Avoid Radar for UAVs

Widespread use of unmanned aerial vehicles (UAVs) within the National Airspace System is limited because of regulatory restrictions on their access to shared airspace. The Airborne Sense and Avoid (ABSAA) Radar Panel, a phased array antenna developed by MIT Lincoln Laboratory, has the potential to facilitate the introduction of UAVs into the national airspace.

Posted in: News, Aerospace, Aviation, Data Acquisition, Defense, Electronics & Computers, Automation

Thermoelectric Cooling: How Does It Work? Why Should You Choose It?

There are many places one can go to get an outline on the pros and cons of different methods for enclosure cooling. Although we will briefly touch on them here, this is really an in-depth article on how to choose a Peltier (thermoelectric) air conditioner, once you have committed to the technology.

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

Next-Generation Fire Support Systems Boost Lethality

Soldiers view live-stream full-motion video from unmanned aerial vehicles via a smartphone. They access 3-D digital maps to send precision target coordinates. Soldiers are now relying on these advanced technologies to improve lethality and maintain battlefield dominance. These are among the improvements that will be embedded in future fire-support capabilities because the Army has started testing four upgraded systems for its Field Artillery units to provide more accurate and timely fire support to maneuver formations.

Posted in: News, Communications, Wireless, Data Acquisition, Defense, Electronics & Computers

NRL Develops Novel Monolayer Ferroelectric Hybrid Structures

Scientists at the U.S. Naval Research Laboratory (NRL), Materials Science and Technology Division, have demonstrated that the intensity and spectral composition of the photoluminescence emitted from a single monolayer of tungsten disulphide (WS2) can be spatially controlled by the polarization domains in an adjacent film of the ferroelectric material lead zirconium titanate (PZT). These domains are written in the PZT using a conductive atomic force microscope, and the photoluminescence (PL) is measured in air at room temperature. Because the polarization domain wall width in a ferroelectric can be as low as 1-10 nm, this approach enables spatial modulation of PL intensity and the corresponding carrier populations with potential for nanoscale resolution.

Posted in: News, Defense, Electronic Components, Electronics

Development of High Quality 4H-SiC Thick Epitaxy for Reliable High Power Electronics Using Halogenated Precursors

Development of robust semiconductor devices with high energy efficiency and reliability is a key objective towards 'Energy Conversion and Power Management ' for naval system applications. The goal of this research is to create the fundamental knowledge needed for the development of novel approaches to synthesize high-quality, thick SiC epitaxial layers (> 100μm) for reliable high voltage (≥10kV) / high power (>100 kW) electronics for navy ship applications.

Posted in: Briefs, Aerospace, Defense, Electronics & Computers, Semiconductor devices, Research and development, Materials properties, Marine vehicles and equipment