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BAE Systems' Artisan 3D Medium Range Radar Type 997

If you've ever worried about the threat from supersonic tennis balls, then BAE Systems’ Artisan medium-range Type 997 3D surveillance radar should put you at ease – it can detect one traveling at Mach 3 (1,980 mph, 3,186 km/h) at a distance of 25 kilometers (15.5 mi). The new radar, developed for the Royal Navy’s Type 23 Duke-class frigates, is designed to simultaneously detect 900 targets smaller than a bird, against background noise equivalent to 10,000 mobile phone signals at ranges from 200 meters (656 ft) to 200 kilometers (124 mi).  Read More

Israeli military radar (Photo: Bukvoed via Wikimedia commons)

The military use of radar has always had a yin-yang dynamic – as new forms of radar are developed, so too are new ways to jam them. A team of physicists at the University of Rochester has discovered how to defeat the latest active radar jamming methods by taking advantage of the quantum properties of photons. While this new anti-jamming technology cannot remove the false information, it provides an immediate alert that false information is being received.  Read More

The Sutter's Mill bolide caught from near Reno, Nevada (Photo: Lisa Warren)

On April 22 this year, a daytime fireball was seen throughout the western United States, accompanied by a loud booming sound heard over much of California's Sierra Nevada mountains around Lake Tahoe. Scientists have now carried out a thorough analysis of the meteorite and found that it was the fastest meteor ever recorded at 28.6 km/s (64,000 mph).  Read More

Unlike conventional air traffic control radar systems, the Holographic Radar system can re...

Wind farms and airports don’t mix. Unfortunately, when the blades are turning on wind turbines, the motion can interpreted as aircraft on air traffic control radar screens. Needless to say, the results of such confusion could potentially be catastrophic – or at the very least, they could make things much more stressful for already-frazzled air traffic controllers. UK tech firm Aveillant, however, claims that its Holographic Radar system is the solution to the problem.  Read More

The 'smallest complete radar system in the world' could be used in the automotive industry...

Research funded by the European Union has resulted in a new low-cost, fingernail-sized radar chip package that could be implemented in a variety of areas, including the automotive industry, robotics and smartphones. Described as “the smallest complete radar system in the world,” the chip package measures 8 x 8 mm, operates at 120 GHz, and can calculate the distance of an object up to around 3 meters away to an accuracy of within 1 mm.  Read More

An illustration depicting the amount of debris currently orbiting the earth (Image: NASA)

In response to the rapidly increasing danger from space debris, a new system called the "Space Fence" has been under development. It would replace the 50-year-old Air Force Space Surveillance System (AFSSS) with a system of highly-sensitive phased array S-band tracking radars. Prototype "Space Fence" systems able to detect and track objects ten times smaller than those that can be detected by the AFSSS have been demonstrated by Raytheon and by Lockheed Martin. The USAF will now choose between construction and installation proposals submitted from both companies for building the new US$3.3 billion (est.) Space Fence, to be operational by 2017.  Read More

A high-resolution Doppler radar can detect individual raindrops over 0.5 mm in diameter (P...

A high-resolution Doppler radar has the ability to detect individual hydrometeors, such as atmospheric raindrops, over 0.5 mm in diameter research led by the Naval Research Laboratory has revealed. The discovery should further understanding of the structure and behavior of clouds, and could lead to more accurate forecasting of severe weather.  Read More

The Northrop Grumman RQ-8A Fire Scout UAV helicopter is the test platform for the MMSS (Im...

Piracy on the high seas of the 21st century requires 21st century solutions. As part of the on-going effort to curb attacks on shipping, the United States Navy will use a UAV helicopter to test a new sensor system in the waters off California during the summer of 2012. This new 3D sensor package in combination with new computer algorithms will allow the Navy to more accurately identify pirate vessels hiding among innocent shipping on the sea lanes with much greater speed and much less manpower.  Read More

A new radar system could be used to detect and identify objects that fall onto train track...

Although you may never have seen it happen yourself, it isn’t all that uncommon for large objects – including people – to fall onto the tracks at subway or railway platforms. While security personnel viewing CCTV feeds will catch some of these accidents, the cameras’ shots are sometimes obscured by people, poor lighting, or even the trains themselves. The results can range from lengthy delays in rail service, to fatalities. Now, however, researchers working on a project for the Université Lille Nord de France have developed a system that uses radar to automatically detect and identify objects that fall onto the tracks. When installed at a platform, the system could then shut off power to the tracks, and notify oncoming trains.  Read More

The MIT radar, seen here from the back, can see through concrete walls up to eight inches ...

A group of MIT researchers has developed a radar that provides a video of what is happening behind a concrete wall. Just like any other radar, the device emits radio waves that bounce off objects and analyzes the return signal. Dr. Gregory Charvat and his colleagues from MIT's Lincoln Laboratory estimate that penetrating an 8-inch thick concrete wall is possible from a maximum distance of approximately 60 feet (18,3 m). The 99.9975 percent of the signal that returns to the radar after bouncing off the wall is disregarded. The remaining part that made it through the wall and back is amplified and used to generate a real-time, 10.8 frames per second visualization of the targets on the other side.  Read More

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