COMBINATION LASER DETECTOR AND GLOBAL NAVIGATINO SATELLITE RECEIVER SYSTEM

摘要

A position tracking and control system for determining and providing an improved position estimate using signals from a global navigation satellite system, comprising a rotary laser system emitting two or more fan shaped laser beams which rotate about a vertical axis, and the inclination angles of the beams differs from each other; a combination laser detector and global navigation satellite antenna having an antenna element with a nominal phase center orientated along a first axis, said antenna element receives the signals from the global navigation satellite system and provides a first position estimate; and having at least one optical sensor provided at a predetermined and fixed spatial separation from said nominal phase center, said optical sensor provides data correlating to the detection of the fan-shaped lasers beams; and a processing unit processing said first position estimate and said data to provide the improved position estimate.