Spy in the sky that sees round corners

[Elmore Furth]

Whoa! You can run but you cannot hide.

WHY jump in a cab to "follow that car" when an airborne drone could do the job for you? The US Pentagon's Defense Advanced Research Projects Agency is developing a radar system which sees around corners and down into "urban canyons". DARPA hopes to be able to track vehicles across an entire city using just a few uncrewed aircraft.

Traditional radar relies on direct line of sight, so it's tricky to track a vehicle that keeps nipping behind buildings. But DARPA believes that by using buildings as mirrors, it will be possible to identify a target vehicle from radar reflections. The experimental system is called Multipath Exploitation Radar.

By using buildings as mirrors, it will be possible to identify a target vehicle from radar reflections
The agency has been exploring how MER might work by driving vehicles around a simulated urban area and collecting returns from an overhead radar. Its researchers are aiming to combine the radar data with a three-dimensional map of the test environment to calculate how the radar reflects off and between vehicles and buildings. This process should highlight which signals in the returning radar data can be used to plot the target vehicle's path.


Spy in the sky that sees round corners

[Kolesar]

1. sees around corners

Plenty of those 'round here to see

[wtmusic]

2. And if we blow up the wrong car...

it's just more brown bodies.

We should be sure to test it in Afghanistan before we use it here, where rich white people's lives are on the line.

[LiberalFighter]

3. Urban canyons means cities with buildings.

Cities with buildings means civilians.

[hangtogether]

4. good luck with that

They've been trying this for YEARS - and years, and years, and years.

It didn't work then, and it won't work now. 3-d map or no 3-d map.

Trust me on this - they can't even get a reliable read from direct RF
on the same floor inside a building. Even the presence of a computer
within 50 feet of the receiver is enough to throw off the readings.

This sounds like some of Bush's old crew trying to convince us that
they're still useful.