A new method for platform inertial navigation initial alignment based on rotation mode

Ming Yi Liu, Jing Juan Zhang, Xue Yun Wang, Ran Li

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

1 Scopus citations

Abstract

A new method for rotation mode platform inertial navigation initial alignment is presented. This method is based on sinusoidal varying speed rotation mode and thus makes the factors decoupling in real time. In this way it makes the estimation process much faster and more precise compared with previous methods. The error equations of a rotating platform inertial navigation system are introduced. We give detailed description and analysis of this method. Simulation is done based on this new method. Analysis and simulation results indicate that this method makes the platform system initial alignment achieved desired results in 207.5 seconds, while the traditional methods takes 388.1 seconds. The accuracy also has highly improved. The standard deviation of gyroscope drift decreased from 0.03°/h to 0.005°/h. This provides a theoretical foundation for platform inertial navigation system rotating mode during actual experiment and application.

Original languageEnglish
Title of host publicationVehicle, Mechatronics and Information Technologies II
PublisherTrans Tech Publications
Pages1344-1350
Number of pages7
ISBN (Print)9783038350606
DOIs
StatePublished - 2014
Externally publishedYes
EventInternational Conference on Vehicle and Mechanical Engineering and Information Technology, VMEIT 2014 - Beijing, China
Duration: 19 Feb 201420 Feb 2014

Publication series

NameApplied Mechanics and Materials
Volume543-547
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

ConferenceInternational Conference on Vehicle and Mechanical Engineering and Information Technology, VMEIT 2014
Country/TerritoryChina
CityBeijing
Period19/02/1420/02/14

Keywords

  • Error equation
  • Initial alignment
  • Optimal estimation
  • Platform inertial navigation system
  • Recursion least square estimation
  • Rotation mode

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