A sensor system for vehicle steering control comprising: a plurality of global navigation satellite sensor systems (GNSS) including receivers and antennas at a fixed spacing to determine a vehicle position, velocity and at least one of a heading angle, a pitch angle and a roll angle based on carrier...http://www.google.com.au/patents/US7400956?utm_source=gb-gplus-sharePatent US7400956 - Satellite position and heading sensor for vehicle steering control
