Longitudinal landing control law for an autonomous reentry vehicle

Yoshikazu Miyazawa, Toshikazu Motoda, Tatsushi Izumi, Takashi Hata

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

This paper discusses the longitudinal flight-path control law designed and flight tested for the Automatic Landing Flight Experiment (ALFLEX). ALFLEX, for which flight tests were conducted in 1996, demonstrated Japanese potential for developing automatic landing technology for a reentry space vehicle. One of the critical factors in satisfying the design requirements for landing on a limited length runway was longitudinal flight-path control following the preflare maneuver. Robustness against uncertainties and sensor errors is a key issue in longitudinal flight-path control. The longitudinal guidance and control laws were carefully designed and flight tested. Although the flight tests proved that the design satisfied all landing requirements, it identified critical parameters affecting landing performance such as vehicle longitudinal aerodynamics, navigation error, and air data sensor error. This paper describes data obtained during the development and flight tests, as well as further investigations conducted after the flight tests in order to improve landing performance for future space vehicle developments. In the subsequent design review a new approach called stochastic gain tuning was adopted, where the guidance feedback gain is tuned to maximize the probability of mission success. The results indicate some possibility of improvement of robustness.

Original languageEnglish
Pages (from-to)791-800
Number of pages10
JournalJournal of Guidance, Control, and Dynamics
Volume22
Issue number6
DOIs
Publication statusPublished - Jan 1 1999

Fingerprint

reentry vehicles
Reentry
landing
Landing
flight
flight tests
flight paths
Flight paths
Path
Guidance
Robustness
Sensor
spacecraft
Requirements
runways
Aerodynamics
Experiment
requirements
Navigation
reentry

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Aerospace Engineering
  • Space and Planetary Science
  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

Longitudinal landing control law for an autonomous reentry vehicle. / Miyazawa, Yoshikazu; Motoda, Toshikazu; Izumi, Tatsushi; Hata, Takashi.

In: Journal of Guidance, Control, and Dynamics, Vol. 22, No. 6, 01.01.1999, p. 791-800.

Research output: Contribution to journalArticle

Miyazawa, Yoshikazu ; Motoda, Toshikazu ; Izumi, Tatsushi ; Hata, Takashi. / Longitudinal landing control law for an autonomous reentry vehicle. In: Journal of Guidance, Control, and Dynamics. 1999 ; Vol. 22, No. 6. pp. 791-800.
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