Predictor-corrector guidance for entry with terminal altitude constraint

Siyuan Liu, Zixuan Liang, Qingdong Li, Zhang Ren

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

9 Citations (Scopus)

Abstract

A novel predictor-corrector guidance algorithm is presented for the entry flight with the terminal altitude constraint. Previous predictor-corrector algorithms focus mainly on the flight range control, thus the terminal altitude error is large in dispersed cases. To improve the guidance precision of the terminal altitude, both the bank angle and the angle of attack are utilized as control variables in this study. Considering the computational performance, a simple profile update method for the two control variables is designed, and a trend control approach is employed by the corrector. Simulations are conducted on an entry flight in the nominal case and dispersed cases. Results show that the proposed method is robust to the initial and aerodynamic dispersions. Compared with the conventional method, the proposed method achieves similar terminal range precision and much higher terminal altitude precision.

Original languageEnglish
Title of host publicationProceedings of the 35th Chinese Control Conference, CCC 2016
EditorsJie Chen, Qianchuan Zhao, Jie Chen
PublisherIEEE Computer Society
Pages5557-5562
Number of pages6
ISBN (Electronic)9789881563910
DOIs
Publication statusPublished - 26 Aug 2016
Externally publishedYes
Event35th Chinese Control Conference, CCC 2016 - Chengdu, China
Duration: 27 Jul 201629 Jul 2016

Publication series

NameChinese Control Conference, CCC
Volume2016-August
ISSN (Print)1934-1768
ISSN (Electronic)2161-2927

Conference

Conference35th Chinese Control Conference, CCC 2016
Country/TerritoryChina
CityChengdu
Period27/07/1629/07/16

Keywords

  • Entry guidance
  • altitude constraint
  • predictor-corrector
  • trend control

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