Mobile Telephone Mast Signals Usable As Radar

caveman writes "In this article at ElectronicNews.com, BAE systems have joined forces with Roke Manor Research (part of Siemens) to further develop a method of using mobile telephone base station signals as a form of radar, capable of detecting periscopes, boats, and aircraft up to several kilometers offshore, as well as detecting vehicles and people moving into and out of areas within range. The company doesn't say exactly how accurate the system will be, but they have a similar system which calculates height which is accurate to ten meters. The parts necessary to build a receiver cost about $3000, which is extremely cheap as radar systems go."

Comments

accuracy

[tiedyejeremy]

"Range and accuracy are also not being discussed, although Lloyd did tell Electronics Weekly that Roke Manor has a height-measuring system that works at similar frequencies and is accurate to about 10 meters. "

Is that 'accurate to a height of 10 meters' or 'accurate to within 10 meters of the actual height.

The english language is so vague... language of the english or, um, nevermind...