Articles tagged with Radar
Astronomers have obtained radar images of a giant, dog bone-shaped asteroid called 216 Kleopatra, located in the main asteroid belt between Mars and Jupiter. The asteroid is about 217 kilometers long and 94 kilometers wide, with a shape that resembles a distorted dumbbell or dog bone.
Tornado researcher Andrew Pazmany heads to the Great Plains to track supercells and determine conditions that enable F4/F5 tornadoes. He will use a modified marine radar to analyze storm structures and distances.
Researchers at Ohio State University developed new radar antenna designs to detect and disable buried land mines. The dishes and rod-shaped antennas can identify mines like fingerprints identify people, while being mounted on a cart or hand-held.
Researchers at Ohio State University used ground penetrating radar to detect creosote deposits buried beneath an EPA cleanup site in Marion, Ohio. The technique showed promise for finding other kinds of buried hazardous waste.
Researchers develop Infrared Search and Track system to enhance low-altitude target detection. The new system will complement existing radars, providing improved detection in low-visibility conditions.
A new study reveals that over 600 areas in the Gulf of Mexico experience natural oil seeps, releasing twice an Exxon Valdez spill worth of oil annually. The oil breaks down into carbon dioxide and is harmless to marine animals, with surface tension spreading it thinly across the ocean surface.
Scientists have developed a new technique using ice-penetrating radar to study long-ago changes in West Antarctic ice streams. This allows them to look at changes much farther back in time, indicating possible fluctuations in the stability of the massive West Antarctic Ice Sheet.
The University of Iowa team will use a low-frequency radar to probe beneath the Martian surface and study the planet's ionosphere. The goal is to detect signs of liquid water, which may be responsible for carving the planet's canyons.
The Lynx SAR system can produce one-foot resolution imagery at standoff distances of up to 55 kilometers, even through clouds and light rain. It can also detect moving targets and small surface penetrations, making it a significant advancement in surveillance technology.
The Office of Naval Research is testing a new weather radar system that delivers potentially superior at-sea weather information. The system, which uses the Navy's SPY-1 phased array radar, will provide direct weather feedback and input to tactical weather forecasts.
The first 3D topographic images of the lunar polar regions have been revealed by Cornell University researchers, indicating potential sites for water ice deposits. The new images obtained through radar interferometry show five large craters in the south polar region that could contain significant amounts of water ice.
Researchers at Pacific Northwest National Laboratory developed a prototype engineering tool to aid in verifying an aircraft's stealth characteristics. The Holographic 3-Dimensional Radar Camera can be deployed worldwide and provides images of radar reflections to assess the condition of radar-absorbing material.
The UCSB transistor achieved a world record frequency of 1200 gigahertz, significantly improving the sensitivity of solid-state radar systems. This innovation enables Navy systems to detect small objects in cluttered environments, such as coastal zones.
The US Air Force has upgraded its test facility to conduct wideband bistatic imaging and radar cross-section measurements of full-sized aircraft. The Bistatic Coherent Measurement System (BICOMS) provides a mobile system for bistatic as well as monostatic tests, improving efficiency and accuracy.
Ground-penetrating radar is used to map large areas and determine snowfall patterns, providing a record for comparison with climate models. The technology can accurately date ice layers, which is essential for studying glacial cycles and changes in atmospheric chemistry.
Researchers in Missouri have designed a bullet that emits a powerful radar pulse as it grinds to a halt, allowing for the detection of landmines without stepping on them. This technology can help geologists survey for oil, minerals, and other buried natural resources, and may be used to locate mines in remote areas.
Recent progress in Over-The-Horizon (OTH) radar technology is reviewed, including advancements in detection and tracking systems. Key findings include improved capabilities in clutter-dominated environments and the development of advanced algorithms to mitigate distortion mechanisms.
The RADARS study found rectal diazepam gel to be effective in reducing seizure frequency and improving outcomes for patients with acute repetitive seizures (ARS). Administered by caregivers, the treatment demonstrated minimal potential for serious adverse events, making it a cost-effective option.
A computer program developed at Ohio State University has enabled the U.S. Navy to design a new system of antennas that reduces radio interference and makes its destroyers less visible to enemy radar. The NEC-BSC program traces the path of electromagnetic waves and allows for the design of lighter materials and improved radar performance.
Scientists are using Synthetic Aperture Radar (SAR) technology to study subtle phenomena such as volcano deformations before eruptions and gradual buildup of stress over years. SAR is also being used to map the flow of ice sheets and glaciers, and gather data on land subsidence issues related to fluid withdrawal.
Researchers at University of Illinois set new record for radar cross-section calculation, a measure of aircraft visibility to radar. The achievement uses advanced software and fast multipole method algorithm, reducing computation time and memory requirements.
New Arecibo radar images show no signs of ice in permanently shadowed areas at the moon's poles. Researchers believe rough surfaces from impact craters may be responsible for observed reflections instead.
Researchers at Penn State have discovered that millions of tiny, previously undetected invaders enter the Earth's atmosphere daily. These micrometeorites are thought to be leftover material from the formation of the solar system and carry significant energy, potentially damaging satellites and spacecraft.
A new cockpit display system being developed at Michigan Technological University aims to alert pilots of nearby aircraft and reduce mid-air collisions. The system uses passive radar and GPS squitter signals to provide real-time traffic information, greatly improving flight safety.
A Colorado State University researcher has developed a real-time radar system that can identify airborne objects even in dense air traffic, improving air safety and efficiency. The technology was tested successfully and is set to be installed in military aircraft, with commercial applications also being pursued.
Researchers will explore innovations in mine detection using microelectronic chemical-sniffing 'nose', ultrasound, and unique mathematical aids. The projects aim to detect buried military booby traps that kill or maim innocent noncombatants.
Wake vortices, created by large commercial aircraft, will be studied at Baltimore Washington International Airport (BWI) to develop a reliable detection system. The system aims to increase airport safety by providing controllers with observed vortex location and intensity information.
The Arecibo Observatory has completed a $25 million upgrade, increasing its sensitivity by a factor of about 20 for radar studies of the solar system. The new system will allow scientists to listen into cellular phone calls on Venus and detect steel golf balls at moon distances.