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New Technology Could Improve Inertial Guidance System Accuracy

NASA has tapped a team of aerospace, military and academic researchers for a three-year project that could dramatically improve in-flight navigation capabilities for space vehicles, military air and sea assets, and commercial vehicles. The project, “Fast Light Optical Gyroscopes for Precision Inertial Navigation,” is intended to enhance the performance of a vehicle’s inertial guidance system by refining the optical gyroscopes that drive it. These highly sensitive gyroscopes, paired with accelerometers, measure a vehicle’s attitude or orientation based on its angular or rotational momentum in flight, and track its velocity and acceleration to precisely determine its position, flight path and attitude.

Posted in: Application Briefs, Navigation and guidance systems, Optics, Research and development, Vehicle acceleration
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Game-Based Training Applications Teach Soldiers Cultural Skills

Charles River Analytics released a case study of an effort for the US Army called CAATE (Culturally Aware Agents for Training Environments). Under this effort, Charles River developed tools to create game-based training applications for soldiers that teach them mission-critical social and cultural skills. Through computer games and by interacting with CAATE-based artificially intelligent agents, soldiers can safely train to effectively interact with residents of other countries and from different cultures.

Posted in: Application Briefs, Artificial intelligence, Computer software / hardware, Collaboration and partnering, Education, Globalization, Military vehicles and equipment
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Smart Hoses Simplify Unmanned Aircraft Refueling

Icon Aerospace supplies refueling hoses to Tier-1 suppliers and air forces across the globe. The IconIC™ hose system secures power with telemetry cables and fiber-optics for data transfer. The technology provides a range of key control and communication functions to take place between a tanker and receiver aircraft while the receiver aircraft undergoes mid-air refueling.

Posted in: Application Briefs, Defense, Data exchange, Fiber optics, Telemetry, Hoses, Refueling
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Looking Under the Hood of a Military Power Supply

There are power supplies in virtually every military electronic system. These ubiquitous devices come in all sizes and power ratings. And just like their commercial counterparts, they are available in the AC/DC, DC/DC and DC/AC configurations that provide the appropriate electrical energy to operate the electronics.

Posted in: Articles, Articles, Electronics & Computers, Power electronics, Electric power, Military vehicles and equipment
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An Improved SDR FPGA Verification Methodology for Emerging OFDMA Waveforms

The rapid evolution of commercial technologies such as Long Term Evolution (LTE) is becoming more attractive for Software-Defined Radio (SDR) and public safety applications [1,2]. They have the potential to support high data throughput applications with scalable subcarriers and the use of multiple antenna techniques such as Multiple-Input Multiple- Output (MIMO) technology.

Posted in: Articles, RFM Catchall, Aerospace, Antennas, Architecture, Oscilloscopes
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Simulation Optimizes Safety and Performance When Integrating an Antenna Onto a Platform

Successful integration of an antenna onto a vehicle platform poses many challenges. Vehicle features impact antenna performance by blocking, reflecting, or reradiating energy, and co-site interference can impair the effectiveness of multiantenna configurations. Platform motion and environmental factors such as terrain and buildings may reduce system effectiveness in actual operational conditions. Furthermore, radiation hazards may pose risks to nearby personnel. Modeling and simulation provides a powerful tool to aid in understanding these issues and developing solutions.

Posted in: Articles, RFM Catchall, Aerospace, Body structures, Computer simulation, Antennas, Electromagnetic compatibility, Radiation
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TVS Diode Arrays

Littelfuse, Inc. (Chicago, IL) has expanded its SP1005 and SP1007 Series General Purpose TVS Diode Arrays (SPA® Devices) with two new 0402 size devices designed to offer modern integrated circuits (ICs) better protection from electrostatic discharge (ESD). The low dynamic resistances of the SP1005-01ETG and SP1007-01ETG allow them to provide a clamping voltage up to 80 percent lower than competing technologies, such as Multi-Layer Varistors (MLVs). Typical applications include protection of keypads, buttons, switches, and low-speed I/Os on consumer electronics such as smartphones, tablet computers, e-readers, portable navigation devices, digital cameras, portable medical devices, etc.

Posted in: Products, Products, Electronics & Computers
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Signal Generator

Anritsu Company (Richardson, TX) introduces the MG3740A analog signal generator that outputs AM/FM/ΦM test signals for evaluation of narrowband analog radio equipment used in public safety networks and private commercial networks. Excellent -140 dBc/Hz SSB phase noise optimizes the test signals outputted from the MG3740A, allowing engineers to conduct highly accurate evaluations of narrowband analog radio equipment and components. Featuring level accuracy of ±0.5 dB over a wide level range of -110 to +17 dBm, the MG3740A allows for accurate tests of radio Rx sensitivity and amplifier distortion characteristics. The MG3740A can be configured with an option that outputs digital modulations. With the option, the MG3740A can be used as a test signal source for dual-mode radio equipment supporting both analog and digital communications.

Posted in: Products, Products, Electronics & Computers
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AC-DC Power Supplies

CUI Inc (Tualatin, OR) has announced the release of five new series of encapsulated AC-DC power supplies ranging from 5 W to 25 W. The VSK-T family is housed in a potted and encapsulated chassis mount package. The units are compact, measuring as small as 76mm x 31.5mm x 24mm (2.99 x 1.24 x 0.94 in) in the 5 W series. The VSK-T family provides a universal input of 85 to 264 VAC and fully regulated DC outputs of 3.3, 5, 9, 12, 15, 24, and 48 VDC depending on the series. The modules reach efficiencies of up to 87% and carry UL/cUL and CE 60950-1 certifications. Protections for over voltage, over current, over temperature and short circuit are included as well as isolation voltages of 4K VAC in the 5 and 10W versions and 3K VAC in the 15, 20, and 25W versions.

Posted in: Products, Products, Electronics & Computers
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Ultra-Low Power Converter

Texas Instruments Incorporated (TI) (Dallas, TX) has introduced the industry’s lowest power DC/DC step-down converter, which increases the amount of harvested energy an end application can use by as much as 70 percent over alternative devices. TI’s TPS62736 DC/DC converter delivers high power conversion efficiency from 10 uA to 50 mA output currents, and consumes only 350 nA of active current and 20 nA during standby. The converter achieves greater than 90-percent efficiency across output currents higher than 15 uA. The TPS62736 regulator steps down the voltage from a power source, such as a thin-film or regular battery or a super capacitor and features a programmable output voltage. The ultra-low power circuit enables battery-free power to applications, such as wireless sensor networks, monitoring systems, smoke detectors, wearable medical devices and mobile accessories.

Posted in: Products, Products, Electronics & Computers
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