RANGE POSITIONING SYSTEMS FOR NAVIGATION

Brand	Owner	Address	Description
ARGO	CUBIC CORPORATION	9233 Balboa Avenue San Diego CA 92123	Range Positioning Systems for Navigation and Positioning Vessels at Sea (Excluding Taximeters and Tachnographs for Land-Based Traffic Controllers)-Namely, Interrogator Data Processor, Strip Chart Recorder, RF Assembly, Assembly Loading Unit, Power Supply Unit, Responder Data Processor and Antenna;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A horizontal navigation system aided by a carrier phase differential Global Positioning System (GPS) receiver and a Laser-Scanner (LS) for an Autonomous Ground Vehicle (AGV). The high accuracy vehicle navigation system is highly demanded for advanced AGVs. Although high positioning accuracy is achievable by a high performance RTK-GPS receiver, the performance should be considerably degraded in a high-blockage environment due to tall buildings and other obstacles. The present navigation system is to provide decimetre-level positioning accuracy in such a severe environment for precise GPS positioning. The horizontal navigation system is composed of a low cost Fiber Optic Gyro (FOG) and a precise odometer. The navigation errors are estimated using a tightly coupled Extended Kalman Filter (EKF). The measurements of the EKF are double differenced code and carrier phase from a dual frequency GPS receiver and relative positions derived from laser scanner measurements.