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The influence of gravity inaccuracy in underwater ESG inertial navigation system

  • Wei Gao*
  • , Bo Zhao
  • *Corresponding author for this work
  • Harbin Engineering University

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

Abstract

Gravity affects the three solution channels of ESG inertial navigation system, which makes the influence of gravity complex. For ESG inertial navigation system, The gravity inaccuracy is composed of three parts, the first part is the calculation error of the normal gravity; the second part is the vertical deflection between the normal gravity and geoid normal; the third part is gravity anomaly caused by the uneven distribution of Earth's density. By solving the error equations and simulating, we quantitatively analyze the influence of gravity inaccuracy in the ESG inertial navigation system. The conclusion will provide a theoretical basis for the compensation of gravity inaccuracy.

Original languageEnglish
Title of host publicationMachine Design and Manufacturing Engineering
Pages231-234
Number of pages4
DOIs
StatePublished - 2012
Externally publishedYes
Event2012 International Conference on Machine Design and Manufacturing Engineering, ICMDME 2012 - Jeju Island, Korea, Republic of
Duration: 11 May 201212 May 2012

Publication series

NameAdvanced Materials Research
Volume566
ISSN (Print)1022-6680

Conference

Conference2012 International Conference on Machine Design and Manufacturing Engineering, ICMDME 2012
Country/TerritoryKorea, Republic of
CityJeju Island
Period11/05/1212/05/12

Keywords

  • ESG
  • Gravity anomaly
  • Gravity inaccuracy
  • INS
  • Vertical deflection

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