Unmanned Ground Vehicle Communications Relays

The need for a high-bandwidth communication link to carry multiple video channels from a mobile robot (unmanned ground vehicle, or UGV) back to a control station requires using high-frequency RF communication links. These links are mostly line-of-sight, often limiting the flexibility of the robot’s movement. The Autonomous Mobile Communication Relays project demonstrated the capability of autonomous slave robots to provide communication-relaying capability for a lead robot exploring an unknown environment.

Posted in: Articles, Products, Aerospace, Defense, RF & Microwave Electronics, Telecommunications, Vehicle networking, Autonomous vehicles

System Generates and Simulates Skin-Echo Pulses for Radar Testing

One of the methods for radar testing is the simulation of an environment where there are dynamic or static objects that are scanned by the radar under test. In particular, simulation implemented by MPG Instruments (Rome, Italy) generates skin-echo pulses coming from radar that transmits a defined pattern stream. The system simulates an object in the scanning area of the radar and is hit by a pulse pattern stream. The X-band radar must be tested at a frequency from 7 GHz to 12.5 GHz, and K-band between 12 GHz and 40 GHz.

Posted in: Articles, Aerospace, Defense, RF & Microwave Electronics, Simulation and modeling, Radar, Test procedures

High-Strength Aluminum Powder Developed for Additive Manufacturing in Aerospace, Automotive

Metal laser melting has made a successful leap from rapid prototyping to an approved manufacturing technology, and the method is increasingly becoming an option for companies in high-tech industries, according to Toolcraft. And now the German manufacturer has teamed with Airbus APWorks to offer another option for additive manufacturing—the Airbus subsidiary’s Scalmalloy high-performance aluminum powder.

Posted in: Technology Update, Defense, Powder metallurgy, Aluminum alloys

Propulsion Performance Model for Efficient Supersonic Aircraft

For the design process of the class of aircraft known as an efficient supersonic air vehicle (ESAV), particular attention must be paid to the propulsion system design as a whole including installation effects integrated into a vehicle performance model. The propulsion system assumed for an ESAV considered in a recent study done by Optimal Flight Sciences LLC and the Air Force Research Laboratory was a three-stream variable cycle engine (VCE).

Posted in: Technology Update, Defense, Design processes, Simulation and modeling, Aircraft

Tourniquet Training System

Charles River Analytics
Cambridge, MA

The Department of Defense recently awarded Charles River Analytics, a developer of intelligent systems and robotic platforms, a follow-on contract for Tourniquet Master Training (TMT). The TMT course helps warfighters provide immediate aid by halting the bleeding of soldiers' battlefield wounds.

Posted in: Application Briefs, Aerospace, Defense, Medical, health, and wellness

Hybrid-Electric Military Motorcycle

Logos Technologies
Fairfax, VA

In partnership with the San Francisco, CA-based motorcycle maker Alta Motors, Logos Technologies has received a Phase II Small Business Innovation Research (SBIR) award from the Defense Advanced Research Projects Agency (DARPA) to continue development of the SilentHawk military motorcycle.

Posted in: Application Briefs, Aerospace, Defense, Hybrid electric vehicles, Military vehicles and equipment, Two or three wheeled vehicles

Electrocoat Primer System

PPG Industries
Pittsburgh, PA

PPG Industries’ aerospace coatings group has installed an electrocoat primer system at the US Coast Guard Aviation Logistics Center in Elizabeth City, North Carolina. The technology, custom-designed to protect the facility's aerospace parts, has reduced the time needed for primer application, processing, and full-cure.

Posted in: Application Briefs, Aerospace, Defense, Aircraft structures, Coatings Colorants and Finishes, Corrosion, Parts

Game-Based Naval Training

Office of Naval Research
Arlington, VA

To improve the ability to detect and defeat adversary radars and anti-ship missiles, the Office of Naval Research (ONR) partnered with the MIT’s Lincoln Laboratory and games experts Metateq and PipeWorks Studios to develop Strike Group Defender (SGD), a multiplayer training program.

Posted in: Application Briefs, Aerospace, Defense, Computer software / hardware, Marine vehicles and equipment, Military vehicles and equipment, Missiles

30 GHz and 35 GHz Microstrip Isolators

TRAK Microwave (Tampa, FL) has announced two new Microstrip Isolators covering popular mm-wave frequency bands. Models T001110 (29.6-30.6 GHz) and T001111 (34.5-35.5GHz) integrate ferrite circulator/ isolator substrates on to printed circuit board (PCB) material providing for a high performance, yet economical, solution. Typical insertion loss is 0.8dB, return loss 20dB, and isolation of 20dB. These devices handle RF power levels consistent with T/R Module applications in phased array radar or SatCom tracking antenna systems.

Posted in: Products, Defense, Manufacturing & Prototyping

Compute Stick with Windows

Mouser Electronics, Inc. (Mansfield, TX) is now shipping the Intel® Compute Stick with Windows 8.1, a new generation of computer from Intel Corp. The Compute Stick is a revolutionary new device that enables any screen with an HDMI interface to become a fully functional personal computer. The Compute Stick comes pre-installed with the Microsoft ® Windows® 8.1 operating system. The Intel Compute Stick is a fully-functional computer in a package similar to a large USB stick.

Posted in: Products, Defense, Manufacturing & Prototyping