Sensors

Designing for Compressive Sensing: Compressive Art, Camouflage, Fonts, and Quick Response Codes

Compressive sensing (CS) is a relatively new field that has caused a lot of excitement in the signal processing community. It has superseded Shannon's time-honored sampling theorem, which states that the sampling rate of a signal must be at least twice its highest frequency. In CS, the necessary sampling rate depends on the sparsity of signal, not its highest frequency, reducing sampling requirements for many signals that exhibit natural sparsity. This compression happens on the hardware level, allowing systems to be designed with benefits ranging from increased resolution and frame rates to decreased power consumption and memory usage. Despite this enthusiasm for CS and the large quantity of research being performed, the number of commercial systems that use CS is relatively few. The problem of designing a CS strategy that increases functionality while actually reducing overall system cost has not been solved in many areas. This is a developing field where not only are new applications for CS still being developed, but also fundamental aspects of CS theory are still evolving.

Posted in: Briefs, Aerospace, Defense, Electronic Components, Electronics, Electronics & Computers, Energy, Energy Efficiency, Imaging, Fiber Optics, Optical Components, Optics, Data Acquisition, Sensors
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Calculation of Weapon Platform Attitude and Cant Using Available Sensor Feedback

When firing artillery, there is typically a maximum angle that the platform cannot exceed relative to the Earth plane. This is due to the large recoil forces involved and the risk of destabilizing the platform the weapon is mounted to. Mobile systems are particularly sensitive to this as the attitude of the platform relative to Earth is constantly changing. A simple solution is to add pitch and roll sensors directly to the platform. However, many mobile systems already have an assortment of sensors that can be used to calculate the platform attitude.

Posted in: Briefs, Aeronautics, Aerospace, Aviation, Data Acquisition, Defense, Mechanical Components, MEMs, Data Acquisition, Sensors, Transportation
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Validation of Automated Prediction of Blood Product Needs Algorithm Processing Continuous Non-Invasive Vital Signs Streams (ONPOINT4)

Hemorrhagic shock occurs frequently in natural and man-made disaster scenarios. To control bleeding and to provide necessary resuscitation, swift and accurate diagnosis and decision-making are required. Early recognition of bleeding and the need for targeted interventions could improve both survival and resource management, allowing the receiving hospital to prepare required blood, surgeons, or other resources in advance of patient arrival and to conserve valuable resources in those patients who are not bleeding. Resources can be saved through avoidance of over-triage, thereby reducing unnecessary air transport, unnecessary blood transfusions, and unnecessary evaluation with labs, X-rays, and computed tomography scans, which is important in all resource-constrained and austere environments.

Posted in: Briefs, Aerospace, Data Acquisition, Defense, Industrial Controls & Automation, Manufacturing & Prototyping, Diagnostics, Patient Monitoring, Data Acquisition, Sensors
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Rugged Server and Display System

General Micro Systems
Rancho Cucamonga, CA
(800) 307-4863
www.gms4sbc.com

General Micro Systems Inc. (GMS) recently announced that the U.S. Army will exclusively deploy powerful rugged server and display systems from GMS to run the multifunction video display (MVD) software within Type II medium mine protection vehicles (MMPV). The GMS system comprises four components – two chassis and two displays. It also includes an enterprise-class, ultra-rugged, secure server with an intelligent 12-port 1/10 Gigabit Ethernet switch, a router, mass-media storage, CITV/DVR, video-over-IP, and two ultra-thin, rugged smart-panel PCs. When coupled with a video encoder, the system is a complete full motion video and control system with storage.

Posted in: Application Briefs, Defense, Electronics & Computers, PCs/Portable Computers, Cameras, Displays/Monitors/HMIs, Imaging, Sensors, Software
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Laser Detecting Systems

Whether engaged in an asymmetric fight with an insurgent or a conventional battle with a “near-peer” adversary, today's battlefield presents combatants with significant challenges. Rapidly advancing technology and increased lethality of weapon systems have forced the military to develop and deliver more effective technologies to protect our air and vehicle crews. One such critical technology – laser detecting systems – is designed to detect and alert crews to laser-aided threats.

Posted in: Articles, Aerospace, Communications, Defense, Lasers & Laser Systems, Photonics, Sensors
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New Products: April 2018 Aerospace & Defense Technology

RF Cable

PIC Wire & Cable® (Sussex, WI), a Division of The Angelus Corporation, recently announced the launch of its new RFMATES ® ULTRALITE UH25107 cable. UH25107 is a 50 ohm RF aerospace cable that is highly shielded, light and flexible. The cable's sophisticated design yields low loss characteristics that make it a robust solution for systems requiring a low dB loss budget for antenna runs, like SATCOM and Iridium systems.

Posted in: Products, Aerospace, Communications, Defense, Board-Level Electronics, Electronics, Electronics & Computers, PCs/Portable Computers, Power Management, Power Supplies, Motion Control, RF & Microwave Electronics, Sensors, Test & Measurement
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Radar Sensor Systems

Kelvin Hughes
London, UK
+44 19 9280 5200
www.kelvinhughes.com

Kelvin Hughes recently announced a number of new coastal surveillance / Vessel Traffic Service (VTS) radar sensor sales references in Australia including installations in the Port of Melbourne and contracts awarded for Chevron (Barrow Island) and Port Hedland.

Posted in: Application Briefs, Defense, Electronics & Computers, Antennas, RF & Microwave Electronics, Detectors, Sensors
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Phonon Confinement Effect in TiO2 Nanoparticles as Thermosensor Materials

TiO2 or ZnO nanoparticles (NPs) have a very strong finite-size dependency in their Raman spectra or photoluminescence (PL) spectra due to the phonon confinement effect or the quantum confinement effect. Together with a fast grain growth kinetics and a high stability under high temperature and pressure, they can forensically retain the complete thermal history of an event. By spatially distributing these NPs during thermal events such as blasts or weapon tests, a spatially and temporally non-uniform thermal environment can be determined by a direct read off their Raman or PL spectra at various locations.

Posted in: Briefs, Aerospace, Defense, Thermal Management, Materials, Nanotechnology, Photonics, Force Sensors and Resistors, Sensors, Test & Measurement
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Natural DNA-Based Nonvolatile Resistive Switching Memory

Motivated by the demand for an even larger storage capacity in the information era, research efforts have been devoted to the development of more efficient and cost-effective memory elements.

Posted in: Briefs, Aeronautics, Aerospace, Aviation, Data Acquisition, Manufacturing & Prototyping, Composites, Materials, Mechanical Components, Data Acquisition
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Content Addressable Memory (CAM) Technologies for Big Data and Intelligent Electronics Enabled By Magneto-Electric Ternary CAM

Content addressable memory (CAM) is one of the most promising hardware solutions for high-speed data searching and has many practical applications such as anti-virus scanners, internet protocol (IP) filters, and network switches. Since CAM stores the data in its internal memory elements and compares them with the search data in parallel, it can achieve much faster speed compared to the software lookup.

Posted in: Briefs, Aerospace, Communications, Data Acquisition, Defense, Electronic Components, Electronics & Computers, Energy Efficiency, Internet of Things, Materials, Metals, Mechanical Components, MEMs, Semiconductors & ICs, Data Acquisition, Sensors
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