Publication: Integrating Low Cost IMU With Building Heading In Indoor Pedestrian Navigation
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Date
2011
Journal Title
Journal ISSN
Volume Title
Publisher
SpringerOpen
Abstract
This paper proposes an integration of ‘building heading’ information with ZUPT in a Kalman filter, using a shoe mounted IMU approach. This is done to reduce heading drift error, which remains a major problem in a standalone shoe mounted pedestrian navigation system. The standalone system used in this paper consists of only single low cost MEMS IMU that contains 3-axis accelerometers and gyros. Several trials represented by regular and irregular walking trials were undertaken inside typical public buildings. The results were then compared with HSGPS solution and IMU+ZUPT only solution. Based on these trials, an average return position error of below 5 m was consistently achieved for an average time of 24 minutes – at times as long as 40 minutes - using only a low cost MEMS IMU.
Description
Journal of Global Positioning Systems (2011)
Vol.10, No.1 :30-38
Keywords
ZUPT,, Kalman Filter,, Pedestrian Navigation,, MEMS IMU,, Heading Drift