[ OTIS ] Optimal Trajectories by Implicit Simulation

References

Here you can find references to papers relating to OTIS, its application to specific problems, and the theory behind it.

Direct Trajectory Optimization Using Nonlinear Programming and Collocation
AIAA Journal of Guidance, Control, and Dynamics, Vol. 10, No. 4, 1987, pp. 338-342.
Hargraves, C. R., and Paris, S. W. - Boeing Phantom Works

Comparison of Implicit Integration Methods for Solving Aerospace Trajectory Optimization Problems
AIAA-2006-6033
J. Riehl - NASA Glenn Research Center
S. Paris - Boeing Phantom Works
W. Sjauw - NASA Kennedy Space Center

Affordable Flight Demonstration of the GTX Air-Breathing SSTO Vehicle Concept
NASA TM 2003-212315
Thomas M. Krivanek, Joseph M. Roche, and John P. Riehl - NASA Glenn Research Center
Daniel N. Kosareo - ZIN Technologies

Comparison of Performance Predictions for New Low-Thrust Trajectory Tools
AIAA-2006-6742
T. Polsgrove, L. Kos, and R. Hopkins - NASA Marshall Space Flight Center
T. Crane - Qualis Corporation

Rapid Optimal Multi-Burn Ascent Planning and Guidance
AIAA-2007-6773
P. Lu and B. Griffin - Iowa State University
G. Dukeman - NASA Marshall Space Flight Center
F. Chavez - U.S. Air Force Research Laboratory, Kirtland AFB

Crew Exploration Vehicle Ascent Abort Trajectory Analysis and Optimization
AIAA-2007-6775 / NASA-TM 2007-214996
R. Falck and L. Gefert - NASA Glenn Research Center