Target Location System Performs in Rain, Smoke, Haze, and Combat Scenarios

A combat identification system developed by Cubic Defense Applications, the defense systems business of Cubic Corporation, was successfully tested during a recent U.S. and Coalition forces assessment of technologies designed to reduce “friendly fire” casualties and increase situational awareness. Cubic's DCID-TALON, an acronym for Dismounted Combat ID with Target Location & Navigation, went through a number of tough tests to demonstrate its capabilities. The multifunction technology was tested in sun, rain, smoke, haze, through trees and windows and at a distance. It was tested on moving soldiers who were walking, riding in vehicles, and engaging in simulated dry-fire and live-fire combat scenarios.

Posted in: Application Briefs, Personnel, Identification, Visibility, Performance tests, Military vehicles and equipment

Rocket Launcher Tubes Protect Troops

The desire to get home safely dwells in the back of the mind of every soldier. The battlefield provides enough mortal dangers without soldiers having to wonder whether or not the weapons they carry could injure or kill them at any moment. A single flaw in the design or fabrication of man-held weaponry could prove fatal for a soldier, leaving weapon suppliers and manufacturers no margin for error in the weapon development process.

Posted in: Application Briefs, Defense, Failure modes and effects analysis, Product development, Risk management, Military vehicles and equipment

Holographic Radar Pinpoints Rapid Shell Fire

Cambridge Consultants has successfully carried out trials tracking 5 inch shells travelling at over 1,000 miles per hour for the US Department of Defense (DoD). The groundbreaking radar developed specifically for this task was able to measure the trajectory and burst points of shells fired from a naval gun at a rate of one every three seconds — the first time radar has been used this way. The technology will eventually be used by the US DoD for training against attack by fast moving land and sea vehicles.

Posted in: Application Briefs, Defense, Radar, Marine vehicles and equipment, Military vehicles and equipment

Jamming-Resistant Adaptive Radio System

Developing smart antennas for jam-resistant cognitive or software-defined radio systems entails a number of challenging issues. Researchers at the University of Texas are investigating methods to locate jamming signals and then take evasive action to maintain a communication link. Their work involves the use of large arrays of miniaturized, tunable antennas and adaptive filters to protect the system. The goal is to design a resilient communication system resistant to jamming signals in a wide spectrum of frequencies.

Posted in: Application Briefs, RFM Catchall, Antennas, Communication protocols, Radio equipment, Reliability

Modern Military Energy Storage Technology

The risk of human casualties associated with fuel convoys, combined with the long-term cost issues of unreliable technologies, has the military exploring greener, more sustainable options with the goal of increasing energy efficiencies, lowering fuel consumption, and lessening the risk of lost lives. Advanced battery technology continues to be validated as a viable solution to lowering fuel demands. For example, today’s advanced energy storage systems can store energy from portable solar arrays to power essential electronic systems at forward operating bases (FOBs) — instead of using a vehicle’s idling engine power or diesel generators — significantly reducing fuel consumption, costs, and risk.

Posted in: Articles, Aerospace, Batteries, Energy storage systems, Military vehicles and equipment

Choosing a Capacitor for Use as a Switch-Mode Power Supply Filter

Input filter caps need to be able to supply a quick burst of energy and to suppress noise generated in the switch circuit. Important considerations for the input filter cap are ESR, ESL, and ripple current. High CV density is preferred in the input filter caps to reduce board space, although it is more critical for the output filter caps.

Posted in: Articles, Aerospace, Electronic Components, Power Management, Power Supplies, Capacitors, Switches, Parts

Inside the Navy’s Quiet Water Tunnel Facility

When water flows over an acoustic sensor, non-acoustic pressure fluctuations caused by turbulence can decrease the signal-to-noise ratio and make it difficult to sense incoming acoustic waves. The Quiet Water Tunnel Facility at the Naval Undersea Warfare Center in Newport, RI is a unique test facility capable of investigating these pressure fluctuations and evaluating new and existing technologies aimed at reducing flow noise and drag due to skin friction. These technologies include modifications to the surface itself, such as riblets or compliant coatings, or modifications to the flow, such as suction or injection of water into the boundary layer.

Posted in: Articles, Aerospace, Water, Acoustics, Test facilities, Marine vehicles and equipment