Design and flight test of a lateral-directional command augmentationsystem

David Atzhorn, Robert F. Stengel

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Two-input/two-output, lateral-directional control laws with Type 0 and Type 1 structures have been designed, analyzed, and flight tested using the microprocessor-based digital flight control system (Micro-DFCS) installed in Princeton’s Variable-Response Research Aircraft (VRA). These control laws were designed using linearquadratic, sampled data regulator theory, and were evaluated by U.S. Navy test pilots. Major closed-loop response features were found to be relatively insensitive to sampling rate (down to 4 sps), although flying qualities were degraded by increased sampling delay. Type 0 controllers provided satisfactory performance in flight, but the equivalent Type 1 systems were found to be unduly sensitive to disturbances and measurement noise.

Original languageEnglish (US)
Pages (from-to)361-368
Number of pages8
JournalJournal of Guidance, Control, and Dynamics
Issue number3
StatePublished - 1984

All Science Journal Classification (ASJC) codes

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


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