This paper proposes a height estimation scheme for a low-cost Pedestrian Dead-Reckoning(PDR) System using Kalman Filter(KF) and Walk Condition Estimation Algorithm(WSEA). In general, GPS(Global Positioning System) has been widely used to estimate the ...
This paper proposes a height estimation scheme for a low-cost Pedestrian Dead-Reckoning(PDR) System using Kalman Filter(KF) and Walk Condition Estimation Algorithm(WSEA). In general, GPS(Global Positioning System) has been widely used to estimate the position of pedestrians or vehicles. However, there are a lot of places that the GPS does not working in real environments, For example, the position information in commercial GPS products does not accurately updated in indoor building or tunnel. In this paper, we propose a height estimation scheme for Inertial Measurement Unit(IMU)-based PDR system in indoor buildings. Basically, we utilize a barometer to estimate height position of pedestrian. In addition, we design a KF and a WSEA to minimize the estimation error due to the barometer. The proposed algorithm has been tested in a real test bed. The experimental results show that the proposed algorithm mitigate the estimation error.