Tuesday, June 24, 2014

US Army is Spending Over $2.7 Billion Building a Really Big Target Called JLENS


The Army is developing 80-yard long surveillance balloons that can pinpoint targets from beyond-the-horizon by floating up to 10,000-feet in the sky and using radar technology to locate potential targets — such as approaching enemy missiles, aircraft or unmanned systems.

So far, the Army has acquired two systems of the Joint Land Attack Cruise Missile Defense Elevated Netted Sensor System, or JLENS. JLENS completed Early User Testing in the third quarter of 2013, and concluded system design and development in the fourth quarter of 2013, Raytheon officials said.

The JLENS system completed developmental testing in December of last year; one of the two systems will participate in an operational evaluation at Aberdeen Proving Grounds, Md., and the other is being placed in strategic reserve by the Army in case it is needed for deployments.

A single JLENS orbit, which can help defend population centers, ground troops or other assets consists of two helium-filled aerostats tethered to ground stations with a cable, Raytheon officials said.

One of the two aerostats is engineered with VHF radar technology that can scan the surrounding areas out to distances of 500 kilometers, said Douglass Burgess, JLENS director, Raytheon. The VHF radar scans 360-degrees and is designed to identify targets or areas of interest for the second aerostat which uses a more precise X-band radar, he added.


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