GPS/dead reckoning for vehicle tracking in the "urban canyon" environment

摘要: Urban areas provide unique problems for Global Positioning System (GPS)-only vehicle location systems. GPS-only propagation can only be used over short intervals. To combat these problems, a dead reckoning capability is added to GPS sensor. The system uses low-cost vibrational gyro. vehicle's odometer output combines with an accurate, robust positioning urban environments. performs well in harsh