SUN Yan, FAN Qi-gao, SUN Bi-wen, et al. Research on pedestrian dead reckoning based on improved heading estimation[J]. 2018, (1): 29-31+34. DOI: 10.13873/J.1000-9787(2018)01-0029-03.
Aiming at problem of low indoor positioning precision of pedestrian
propose a new algorithm for pedestrian heading-estimation based on improved heading estimation. The algorithm includes the stride frequency estimation
the step length and heading estimation. The improved heading estimation algorithm is based on the quaternion attitude calculation and uses the extended Kalman filtering(EKF) to correct deviation of the heading angle. Based on the proposed algorithm
the experimental platform using inertial measurement unit as core is built.The results show that the proposed algorithm is feasible