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Adaptive Kalman filter for INS/GPS Integrated Navigation System

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

Abstract

Inertial Navigation System (INS) and Global Positioning System (GPS) are commonly integrated to overcomes each system's inadequacies and provide an accurate navigation solution. The integration of INS and GPS is usually achieved using a Kalman filter. The accuracy of INS/GPS deteriorates in condition that a priori information used in Kalman filter does not accord with the actual environmental conditions. To address this problem, an improved Sage-Husa filter is presented. In this method, the measurement noise characteristic is adjusted if and only if filtering abnormality exists, avoiding filter instability and reducing computational burden caused by adjusting noise characteristic too frequently in Sage-Husa filter. Simulations in INS/GPS integrated navigation showed improvement in positioning accuracy.

Original languageEnglish
Title of host publicationIndustrial Instrumentation and Control Systems II
Pages332-335
Number of pages4
DOIs
StatePublished - 2013
Event2013 2nd International Conference on Measurement, Instrumentation and Automation, ICMIA 2013 - Guilin, China
Duration: 23 Apr 201324 Apr 2013

Publication series

NameApplied Mechanics and Materials
Volume336-338
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2013 2nd International Conference on Measurement, Instrumentation and Automation, ICMIA 2013
Country/TerritoryChina
CityGuilin
Period23/04/1324/04/13

Keywords

  • Adaptive filter
  • INS/GPS
  • Integrated navigation system
  • Sage-Husa

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