Spatiotemporal Imaging Exploiting Structured Sparsity

Spatiotemporal imaging contains a large class of imaging problems, which involve collecting a sequence of data sets to resolve both the spatial and temporal (or spectral) distributions of some physics quantity. This capability is exploited in numerous different fields such as remote sensing, security surveillance systems, astronomical imaging, and biomedical imaging. One typical example is hyperspectral imaging, which is a powerful technology for remotely inferring the material properties of the objects in a scene of interest. Ultrasonic and thermal imaging are other important examples of spatiotemporal imaging where high spatial resolution is needed for urban planning, military planning, intelligence and disaster monitoring and evaluation.

Posted in: Briefs, Aerospace, Data Acquisition, Defense, Cameras, Imaging, Optics, Data Acquisition, Sensors

Air Caster Technology

If there is a prime example of the need for friction-free, precise and delicate equipment movement in the aerospace and defense industries, satellite positioning during the testing cycle should be at the top of the list. Whether in a clean room or another environment, there is no margin for error when it's time to move the “bird” even a short distance. Anything short of a smooth relocation means unacceptable property loss and project delays if this most intricate piece of aerospace equipment is damaged. Disassembly is hardly an option.

Posted in: Articles, Aerospace, Defense, Imaging, Manufacturing & Prototyping, Positioning Equipment, Instrumentation, Measuring Instruments, Test & Measurement, Testing Procedures

NASA Eyes GPS at the Moon for Artemis Missions

The Global Positioning System (GPS), a satellite-based navigation system used by an estimated four billion people worldwide to figure out where they are on Earth at any moment, could be used to pilot in and around lunar orbit during future Artemis missions to the Moon.

Posted in: Articles, Aerospace, Communications, Imaging, Manufacturing & Prototyping, Rapid Prototyping & Tooling, Positioning Equipment, Antennas

Preventing Ice Buildup on Electric Aircraft

Afaq Ahmed Abbasi of Northwestern Polytechnical University explains his innovative approach.
Posted in: Articles, Aeronautics, Aerospace, Aviation, Power Management, Thermal Management, Cameras, Imaging, Composites, Materials, Fluid Handling, Mechanical Components, MEMs, Power, Power Transmission

Critical Communications Break Out of the Analog Mold

Once firmly rooted in its analog origins, critical communications is now steadily evolving to provide enhanced situational awareness. The latest public safety and military communications (MilCom) radios are more versatile and reliable, supporting ad-hoc networks to improve or enable connectivity. With higher-data-rate capabilities, critical communications solutions can send and receive high-resolution images, videos, and other types of data-intensive content. At the same time, they provide higher-quality voice communications while maintaining security. To ensure communications and interoperability, they still can support analog communications as a failsafe. These myriad capabilities are possible through the ongoing adoption of new technologies, ranging from digital public safety standards and modulation formats, to technologies like wireless local area networking (WLAN) and Long Term Evolution (LTE).

Posted in: Articles, Aerospace, Communications, Wireless, Data Acquisition, Defense, Imaging, Video, Manufacturing & Prototyping, RF & Microwave Electronics

Land Combat Missile

MBDA Incorporated
Arlington, VA

In early 2019, the DGA (French Procurement Agency) and the French Army (STAT) organized a campaign to test the MMP land combat missile in extreme cold conditions. Performed on the Swedish state firing range at Vidsel, located near the Arctic Circle with temperatures between -15°C and -30°C, the cold weather campaign of the MMP was determined to be a complete success.

Posted in: Application Briefs, Data Acquisition, Defense, Imaging, Data Acquisition

Pathfinder Radar ISR and SAR Systems: Tactical Eyes for the Warfighter

Sandia National Laboratories’ (Albuquerque, NM) Radar Intelligence, Surveillance and Reconnaissance (ISR) systems enable a new product paradigm in radar capabilities and modalities. With the ability to shrink sensor size, increase resolution, raise image quality, and advance realtime onboard processing, Sandia has been producing next-generation systems for nearly three decades. Sandia specializes in the full system design of Synthetic Aperture Radar (SAR), Ground Moving Target Indicator (GMTI), target recognition, and other sensor systems for the Department of Defense, other government agencies, and industry partners.

Posted in: Articles, Aeronautics, Aerospace, Aviation, Data Acquisition, Defense, Electronic Components, Electronics, Electronics & Computers, Imaging, Optical Components, Optics, Antennas, RF & Microwave Electronics, Data Acquisition

Tactical Communications System

Spectra Group
Tysons, VA

Spectra Group (US), a specialist provider of secure voice, data and satellite communications systems, specifically optimized for use in remote and challenging environments, has been selected by the US DoD to take part in the 2019 Army Expeditionary Warrior Experiments (AEWE 2019) at Fort Benning.

Posted in: Application Briefs, Communications, Wireless, Data Acquisition, Defense, Imaging, Manufacturing & Prototyping, Materials, Data Acquisition

"Eyes" for the Autopilot

Automatic landings have long been standard procedure for commercial aircraft at major airports; this is usually not the case at smaller airports. Researchers have developed a completely automatic landing with vision-assisted navigation that functions properly without the need for ground-based systems.

Posted in: INSIDER, News, Defense, Cameras, Imaging

LASER World of PHOTONICS, Day 3 — Unusual Exhibits

Editor Bruce A. Bennett takes us through the unusual — and completely unexpected —at this year's LASER World of Photonics.
Posted in: News, Blog, Automotive, Cameras, Imaging, Machinery, Mechanical Components, Lasers & Laser Systems, Optical Components, Optics, Photonics, Automation, Robotics, Instrumentation, Measuring Instruments, Monitoring, Test & Measurement, Automotive, Transportation