Pedestrian navigation system using MEMS sensors for heading drift and altitude error correction

Author:

Tian Xiaochun,Chen Jiabin,Han Yongqiang,Shang Jianyu,Li Nan

Abstract

Purpose This study aims to design an optimized algorithm for low-cost pedestrian navigation system (PNS) to correct the heading drift and altitude error, thus achieving high-precise pedestrian location in both two-dimensional (2-D) and three-dimensional (3-D) space. Design/methodology/approach A novel heading correction algorithm based on smoothing filter at the terminal of zero velocity interval (ZVI) is proposed in the paper. This algorithm adopts the magnetic sensor to calculate all the heading angles in the ZVI and then applies a smoothing filter to obtain the optimal heading angle. Furthermore, heading correction is executed at the terminal moment of ZVI. Meanwhile, an altitude correction algorithm based on step height constraint is proposed to suppress the altitude channel divergence of strapdown inertial navigation system by using the step height as the measurement of the Kalman filter. Findings The verification experiments were carried out in 2-D and 3-D space to evaluate the performance of the proposed pedestrian navigation algorithm. The results show that the heading drift and altitude error were well corrected. Meanwhile, the path calculated by the novel algorithm has a higher match degree with the reference trajectory, and the positioning errors of the 2-D and 3-D trajectories are both less than 0.5 per cent. Originality/value Besides zero velocity update, another two problems, namely, heading drift and altitude error in the PNS, are solved, which ensures the high positioning precision of pedestrian in indoor and outdoor environments.

Publisher

Emerald

Subject

Electrical and Electronic Engineering,Industrial and Manufacturing Engineering

Reference28 articles.

1. Aiding low cost inertial navigation with building heading for pedestrian navigation;Journal of Navigation,2011

2. Rotating a MEMS inertial measurement unit for a foot-mounted pedestrian navigation;Journal of Computer Science,2014

3. Integrity monitoring for UWB/INS tightly coupled pedestrian indoor scenarios,2011

4. Indoor navigation with foot-mounted strapdown inertial navigation and magnetic sensors;IEEE Wireless Communications,2011

5. An improved shoe-mounted inertial navigation system,2010

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