Skip to main navigation Skip to search Skip to main content

Optimal weighted least square data fusion method for redundant IMU based on calculation of measurement error

  • Xing Chuan*
  • , Zhang Hai
  • *Corresponding author for this work
  • Beihang University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The measurements of redundant IMU are difficult to fuse, and traditional data fusion method can't take each measurement into account. This method is an improving fusion method. A dodecahedron non-orthogonal redundant IMU configuration was selected as model. The correlation between measurement errors and fusion errors was derived and an effective calculation method for measurement errors was proposed. The method considered the differences between projection of fusion vector and measurements, and then made a conversion from projection errors to measurement errors. Measurement errors was calculated and used to generate an optimal weighted matrix in optimal weighted least square method. Result from optimal least square method is an optimal fusion vector whose errors are limited a minimum. Simulations also proved that the fusion result of this method is more accurate than the result of traditional method.

Original languageEnglish
Title of host publicationIndustrial Instrumentation and Control Systems
Pages149-155
Number of pages7
DOIs
StatePublished - 2013
Event2012 International Conference on Measurement, Instrumentation and Automation, ICMIA 2012 - Guangzhou, China
Duration: 15 Sep 201216 Sep 2012

Publication series

NameApplied Mechanics and Materials
Volume241-244
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2012 International Conference on Measurement, Instrumentation and Automation, ICMIA 2012
Country/TerritoryChina
CityGuangzhou
Period15/09/1216/09/12

Keywords

  • Data fusion
  • Optimal estimation
  • Redundant IMU
  • Weighted least square method

Fingerprint

Dive into the research topics of 'Optimal weighted least square data fusion method for redundant IMU based on calculation of measurement error'. Together they form a unique fingerprint.

Cite this