26 Feb '13, 4pm

Satellite navigation poses challenges for automotive electronics engineers

In-vehicle navigation systems, using signals from the US Government's GPS satellites, were smart, useful and comparatively reliable. But even so, positions could only be calculated to within tens of metres – and even that level of accuracy wasn't a certainty in urban canyons, where multipath effects from signals bouncing off buildings could cause positions to be off by many tens of metres. However, that picture is changing rapidly. New satellite constellations – like Russia's fully operational GLONASS system, China's BeiDou-2 and Europe's forthcoming Galileo system – promise unprecedented levels of satellite availability for in-vehicle satellite positioning. Simultaneous advances in sensor technology and in-vehicle connectivity mean OEMs and Tier 1 suppliers of navigation systems have a wealth of new positioning capabilities with which to develop innovative location based ...

Full article: http://www.newelectronics.co.uk/electronics-technology/sa...

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