A low-thrust guidance algorithm suitable for operational use is formulated. Using linear stochastic control theory, a linear feedback control law is obtained for a minimum terminal miss performance criterion. The control variables are restricted to constant values over specified time intervals and are explicitly limited. Both fixed and variable time-of-arrival guidance are considered. Guidance equations are presented in deterministic (operational) and in statistical form; and computational procedures necessary for implementation are outlined. The performance of the guidance algorithm is evaluated by applying it to the approach phase of the 1980 rendezvous mission with the comet Encke.


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    Title :

    A constrained discrete optimal guidance strategy for low-thrust space flight


    Contributors:

    Conference:

    Astrodynamics Conference ; 1973 ; Vail, CO, US


    Publication date :

    1973-07-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Constrained low-thrust guidance

    UNGS, M. / KORNHAUSER, A. / LION, P. | AIAA | 1973


    Constrained low-thrust guidance.

    Ungs, M. J. / Kornhauser, A. L. / Lion, P. M. | NTRS | 1973


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