Articles tagged with Radar
A team led by Professor Douglas Wiens is conducting a comprehensive study of Antarctica's Gamburtsev Province, using radar and seismic imaging to understand the region's geological history. The research aims to shed light on the formation of continental ice sheets and climate models.
A U.S.-led team of scientists will use advanced radar and seismic tools to explore the Gamburtsev Mountain range in Antarctica. They hope to determine how this massive mountain range formed, defying geological understanding, and whether it played a role in shaping the East Antarctic Ice Sheet.
Research found that small packages trigger consumers to give in to temptation, while large packages are perceived as innocent pleasures, leading to overindulgence. Consumers believe that small packages help regulate hedonistic consumption, but reality shows the opposite.
Researchers tracked bird flight patterns using radar and found that some birds fly in tandem even when 200 meters apart, suggesting active social behavior.
The project aims to integrate capacitive radio frequency MEMS and CMOS devices for rapid electronic steering of radar beams, improving radar speed and precision. The UNCD film technology exhibits unique properties that make it suitable for producing resonators for high-frequency operations.
A team of researchers from the University of Southern California has developed a novel 49-pixel probe-and-camera system that can create a 2D through-the-walls radar imager using a small CMOS chip. This technology has potential applications in medical imaging, emergency rescue missions, and security monitoring devices.
Arecibo Observatory will observe near-Earth asteroid TU24 on January 27-28 and February 1-4, using its powerful radar to gauge size, speed, and spin. The mission aims to map the object's surface in detail, providing valuable information about potentially hazardous near-Earth objects.
New research brings scientists closer to exploring Jupiter's moon Europa, discovering potential for life in its ice-covered ocean. Refined methods and data analysis reveal a habitable environment, with improved measurements potentially detecting compounds indicative of life.
Researchers used satellite data to monitor inflation in the Lastarria-Cordon del Azufre volcanic complex, detecting a long wavelength signal indicating possible magmatic activity. A short wavelength signal was also found, likely linked to hydrothermal fluid circulation.
ESA's Envisat and ERS-2 satellites track Hurricane Dean's path and strength, providing timely warnings with high-resolution cloud structure and wind field data. The satellites' instruments also measure sea surface temperature and height, allowing researchers to predict the hurricane's potential impact on the Yucatan Peninsula.
A new study by Northwestern University's Charles Bennett found that RADAR identified serious drug reactions six years earlier than the FDA and drug companies. The team's proactive safety efforts provided doctors with important medical insights and guidance for prevention, diagnosis, and treatment.
The MARSIS radar has mapped the South Polar region of Mars, revealing a giant dome-shaped area composed mainly of ice. The radar signals have also identified depressions with variable distribution and depth of ice deposits at high latitudes.
The Mars Express radar instrument has mapped the thickness of dusty ice deposits at Mars' south pole, estimating a liquid layer about 11 meters deep. The findings suggest that polar layered deposits contain most of the known water on modern Mars.
GTRI researchers patented a digital process for aircraft radar warning receivers, improving stability and reducing cost. The new digital crystal video receiver can detect RF signals over a wide range of frequencies, making it more robust and efficient.
Cornell astronomers have confirmed that solar radiation and an asteroid's shape determine its rotation rate, a phenomenon known as the Yarkovsky-O'Keefe-Radzievskii-Paddack Effect. This effect can help explain the formation of binary asteroids by creating strong centrifugal forces.
A team of scientists observed the speeding up of an asteroid's rotation, showing it is due to the heating of its surface by the Sun. The YORP effect, a theoretical prediction, was directly detected in action on a small near-Earth asteroid.
The USC researchers have created two novel CMOS architectures for 'biometric radar' and automobile accident avoidance systems. One chip can detect living victims in rubble by analyzing minute movements caused by breathing and heartbeat, while the other uses a low-cost CMOS chip to detect ultrawideband signals.
Researchers have found evidence of ancient impact basins and topographic depressions in the Martian lowlands using MARSIS instrument, confirming the subsurface's complexity. The discovery sheds light on the geologic evolution of Mars, revealing a dichotomy between the northern and southern hemispheres.
The Cassini spacecraft has imaged the tallest mountains ever seen on Saturn's moon Titan, with peaks reaching nearly a mile high. The mountains are topped with bright, white material that may be methane or other organic 'snow,' suggesting a unique geology and potential for life.
Scientists at Ohio State University have used a new radar instrument to create the first three-dimensional image of the ground beneath Greenland's ice sheet. The image reveals a landscape with mountains and valleys, similar to Canada and the northern United States, hidden for millions of years.
Researchers at Ohio State University developed a satellite radar technique to measure water levels in vegetated wetlands. The study found rising and dropping water levels in selected sites over a decade, including changes caused by seasonal rainfall.
The CSIRO ICT Centre has demonstrated a point-to-point wireless connection of over six gigabits per second, the highest efficiency ever achieved for such a system. The technology operates at 85GHz and enables the transmission of multiple streams of DVD quality video simultaneously.
Scientists have gained unprecedented insight into the internal structure and melting rate of the Filchner-Ronne Ice Shelf using phase-sensitive radar. The results show that an average of 1m of ice is melted from the bottom of the ice shelf every year, with no signs of change due to replenishment by upstream ice flow.
Researchers mapped subsidence in New Orleans using satellite radar imagery, revealing areas where land is sinking at alarming rates. The study highlights the need for revised reconstruction plans and more durable levees to address the growing threat of flooding.
By analyzing cloud height and rainfall patterns, NASA scientists can estimate whether a hurricane's surface winds will strengthen or weaken. Rainfall from clouds extending up to 9 miles high indicates stronger winds.
Scientists discovered massive sand dunes on Saturn's moon Titan, formed by tidal winds and unique atmospheric conditions. The dunes, similar to those in Namibian Deserts, suggest that Titan's atmosphere can create surface winds powerful enough to sculpt sand.
Researchers using ERS-2's radar altimetry and InSAR found anomalies in ice-sheet surface elevation, suggesting large floods of water from deep within the ice may have generated huge floods that reached the ocean. The discovery raises concerns about ancient life in subglacial lakes.
The Mars Express and NASA's Mars Reconnaissance Orbiter missions are providing valuable insights into Mars' upper interior. The combination of radars on the two missions will directly map the structure of the upper portions of the interior, revealing information about water, ice caps, and crust deformation.
Researchers developed a radar-activated system that uses cannons and falcon decoys to deter birds from oil sands mining ponds, showing promise for reducing bird deaths. The system detects birds more effectively than traditional deterrents and can be used in conjunction with industry efforts to reclaim mines and reduce hazardous waste.
The SAVE-U project developed an innovative pre-impact sensing platform that combines sensors, radar, and cameras to protect cyclists and pedestrians. The system can identify potential collisions and apply automatic braking to prevent them, even in challenging weather and light conditions.
Researchers at Georgia Tech are developing silicon-germanium microchips that can operate in ultra-sophisticated radar systems and new generations of NASA spacecraft. These chips offer cost savings, compact size, and improved efficiency, making them ideal for phased-array radar systems.
The MARSIS radar has provided direct information about Mars' deep subsurface, revealing buried impact craters and hints of underground water-ice. The radar's measurements have changed our perception of the Red Planet, adding a new dimension to its knowledge.
The US Army and Air Force partnered with Sandia National Laboratories to test the effectiveness of Athena, a device that uses radar to identify friendly forces on the battlefield. The successful demonstration showcases the potential for this technology to prevent fratricide, or killing one's own soldiers, in combat situations.
A new transmission system using phased array technology could improve planetary radar and spacecraft communication efficiency, enabling more data to be collected from science spacecraft. The system's low power consumption and lack of moving parts make it a cost-effective alternative to current systems.
The National Institute of Standards and Technology (NIST) has provided critical shielding data to NASA, enabling the resumption of space shuttle flights. The NIST system measures electromagnetic shielding characteristics in key locations, allowing NASA to set safe power levels on radar systems.
Researchers are using a new radar installed at the Rothera research base in Antarctica to investigate climate change and explore giant waves in the mesosphere, the least-explored part of the Earth's atmosphere. The radar uses meteors as 'miners' canaries to measure winds and temperatures, revealing frigid temperatures in the mesosphere.
A new NIST method corrects time distortions in oscilloscopes, improving signal accuracy and reducing noise interference. The free software package can be applied to a wide range of equipment and signals.
Researchers used harmonic radar to track bees' flight paths after attending a 'waggle dance', confirming the dance is a coded message guiding them to new food sources. The study showed that bees translate the dance code into successful navigation, correcting for wind drift even when visiting unfamiliar destinations.
Researchers at Ohio State will develop a new radar instrument to peer beneath earth's ice cover and analyze how ice accumulates. The project aims to understand the impact of melting ice on global sea levels and temperature regulation.
Researchers used harmonic radar to track butterflies' flight patterns, finding they follow decisive routes for feeding and orientation. The study aims to understand how butterflies navigate fragmented landscapes and maintain sustainable populations.
The Duke team is analyzing different obstacles and identifying distinguishing features to create
Researchers infer that Titan has acquired significant amounts of ammonia and water, which could be responsible for resurfacing parts of the moon. The Cassini-Huygens mission suggests that liquid ammonia-and-water layers may exist beneath Titan's surface.
Researchers studied coastal 'jet' south of Block Island, revealing strong seasonal variability in currents. Analysis showed that freshwater outflow from estuaries and wind stress drive the interplay behind this phenomenon, producing a stronger jet during summer and weaker flow during winter.
The Tropical Rainfall Measuring Mission (TRMM) will be decommissioned by NASA, marking the end of its outstanding contribution to Earth observations. TRMM's unique precipitation observations have provided unprecedented insights into rainfall-producing cloud systems over tropical land masses and oceans.
The National Highway Traffic Safety Administration (NHTSA) has adopted a new NIST standard for across-the-road radar systems, which can detect vehicles traveling above a predetermined speed without requiring an operator. These systems are more reliable and less prone to being detected by speeders, providing enhanced safety for motorists.
The Navy is developing a new radio frequency concept, AMRF-C, to enable a limited number of transmit and receive antennas to handle multiple communications, radar, and electronic warfare functions. The goal is to reduce costs and improve performance by leveling so-called 'antenna forests'.
Scientists at Georgia Tech Research Institute are developing a non-destructive radar system to detect mold behind walls, which can emit harmful compounds and cause serious health issues. The goal is to create a handheld prototype that can map mold and help contractors pinpoint damaged areas.
Researchers made new discoveries about the Earth's magnetic field, Mars rover data, and post-earthquake ground movement. A thin layer in the Earth's magnetic field was observed, while a Martian rover's landing site may be coated with iron oxide, affecting water detection. GPS technology also revealed ground movement after an 8.0-magnit...
The newly launched San Andreas Fault Observatory at Depth (SAFOD) will provide researchers with tools for continuous monitoring from inside an active earthquake zone. This project is part of the larger EarthScope initiative, which aims to investigate geological forces shaping the North American continent.
The RADAR project aims to develop a system that can save time for its user while improving decision quality. The system will handle routine tasks autonomously, ask for confirmation on others, and produce suggestions that users can modify.
The MARSIS project aims to probe several miles beneath Mars' surface and study the ionosphere. Researchers hope to detect signs of liquid water, which may have shaped the planet's deep canyons.
Ultra-wideband technology offers advantages in communication due to its wide spectrum range. The technology allows for efficient transmission and reception of data without interference, enabling military communications to remain secure and domestic devices to achieve higher data rates.
The Office of Naval Research (ONR) is developing an Advanced Multi-Function Radio-Frequency Concept (AMRF-C) antenna aperture that can integrate radar and communications functions, reducing the need for separate antennas and increasing stealth.
Researchers uncovered characteristics of faults that move backwards, contrary to conventional observations, and found the material within faults is significantly different than its surroundings. The study provides a new way to identify potentially active faults and better understand the earthquake process.
Researchers at Scripps Institution of Oceanography used satellite and radar technologies to monitor the height and thickness of Antarctica's ice shelves. They successfully measured the effect of tides on ice shelf height, allowing for more accurate tracking of climate-related changes.
A NASA study found that urban heat islands create more summer rain over and downwind of major cities worldwide. The increased heat promotes rising air and alters weather patterns, leading to higher rainfall rates in urban areas.
Researchers estimate that about 16 percent of near-Earth asteroids are likely to be binary systems, with some featuring a three-to-one size ratio. Five such binary systems have been identified by radar, offering insights into their formation and potential for collision with Earth.
Researchers have recalculated the amount of carbon dioxide released from tropical forests into global waterways, finding that it is triple the current estimate. The new total is comparable to a fifth of human activities' carbon dioxide emissions, challenging the notion that forests are carbon sponges.
A UCLA-led team of chemists and engineers has developed a transparent plastic that can mend itself when heated, offering potential use in industries such as electronics, radar and communications. The material, called Automend, retains 60% of its original strength after healing.
The new radar technology can measure wind speed, direction and turbulence, and can be used to predict weather patterns. It has been commercialized by Atrad and is being used in various applications, including flight trials of a supersonic transport aircraft and weather forecasting in the UK.