A New Composite Proportional Navigation Entry Guidance Strategy for Glider under Multiple Uncertainties

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Abstract

This work presents a high precision entry guidance strategy for the glider subject to uncertainties in both aerodynamic parameters and atmospheric density. A new composite proportional navigation combined with disturbance observer is proposed to improve the precision of entry guidance. Firstly, the multiple uncertainties are analyzed and a dynamic model with uncertainties is established where the multiple uncertainties have been transformed into equivalent disturbances. Secondly, a disturbance observer is designed to estimate and compensate the equivalent disturbances. Meanwhile, a proportional navigation law is designed to guide the glider without considering the effect of uncertainties. Stability analysis are given to guarantee the closed-loop performance. Simulation results of X-33 model show the effectiveness and performance of composite proportional navigation entry guidance strategy for glider.

Original languageEnglish
Title of host publicationProceedings of the 37th Chinese Control Conference, CCC 2018
EditorsXin Chen, Qianchuan Zhao
PublisherIEEE Computer Society
Pages531-536
Number of pages6
ISBN (Electronic)9789881563941
DOIs
StatePublished - 5 Oct 2018
Event37th Chinese Control Conference, CCC 2018 - Wuhan, China
Duration: 25 Jul 201827 Jul 2018

Publication series

NameChinese Control Conference, CCC
Volume2018-July
ISSN (Print)1934-1768
ISSN (Electronic)2161-2927

Conference

Conference37th Chinese Control Conference, CCC 2018
Country/TerritoryChina
CityWuhan
Period25/07/1827/07/18

Keywords

  • Disturbance observer
  • Entry guidance
  • Glider
  • Multiple uncertainties
  • Proportional navigation

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