Israeli Jam Session (UAV-based Electronic Attack)

Excerpt from Aviation Week blog:

...Israel-based Elisra has developed countermeasure, or “self-protection” as they call it, systems for unmanned aerial vehicles (UAVs). The electronic intelligence system (ELINT), called the AS210, enables a fleet of UAVs to not only detect, identify and track incoming threats, but to defend against those threats...There are three layers to the AS210, Davidi said, area protection and self protection (one system relying on radio frequency and the second on infrared).

The area protection system is essentially a jamming system comprising a receiver, algorithm generator and a jammer...The Elisra system weighs in at 36 kg. “It’s the same one as in our F-16s,” he said. The jamming system covers a radius of about 120 km. “All the UAVs within that area will be protected.” The jamming system emits tracking information that creates a “ghost” UAV. It sends false vector, velocity, and other information to enemy radar.

The RF self-protection system has a chaff dispenser instead of a jammer, as does the IR system.

The IR sensor detects not only radiation from potential missiles, but can differentiate the heat source. The system relies on a unique algorithm to calculate the movement behind the IR emission and determine whether it’s a missile or a campfire. And if it is a missile, in which direction it’s headed. The RF package weighs about 12 kg and IR sensor package is 20 kg...

See full blog post at:

http://www.aviationweek.com/aw/blogs/defense/index.jsp?plckController=Blog&plckScript=blogScript&plckElementId=blogDest&plckBlogPage=BlogViewPost&plckPostId=Blog%3A27ec4a53-dcc8-42d0-bd3a-01329aef79a7Post%3Af04f0b2e-eef1-4036-b56e-4b5c0946c902