Journal: Journal of Guidance, Control, and Dynamics

Abbreviation

J. guid. control dyn.

Publisher

American Institute of Aeronautics and Astronautics

Journal Volumes

ISSN

0731-5090
1533-3884

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Publications1 - 10 of 19
  • Control of Deep Space Formation Flying Spacecraft; Relative Sensing and Switched Information
    Item type: Journal Article
    Smith, Roy; Hadaegh, Fred Y. (2005)
    Journal of Guidance, Control, and Dynamics
    Spacecraft formations in deep space can be specified in terms of the relative spacecraft positions and absolute spacecraft orientations. Accurate absolute position measurements are not available and a formation control design approach, based on relative position information, is presented. This approach exploits the redundancy inherent in a relative position specification to develop a family of equivalent control topologies for optimal formation control. Switching between topologies provides redundancy and allows combinations of measured relative positions and communicated estimates to be used in the implementation of the optimal formation control. Redundancy may also exist in the actuation specification and this can be exploited to control the formation centroid, or to implement the minimum fuel control. Information and control switching can be implemented asynchronously without requiring supervisory control. A four spacecraft, two-dimensional simulation example is used to illus- trate the concepts.
  • Robust Design of Adaptive Output Feedback Controllers for Direct Feedthrough Systems
    Item type: Journal Article
    Menner, Marcel; Annaswamy, Anuradha M.; Holzapfel, Florian (2018)
    Journal of Guidance, Control, and Dynamics
  • Covariance Correction Step for Kalman Filtering with an Attitude
    Item type: Journal Article
    Mueller, Mark W.; Hehn, Markus; D'Andrea, Raffaello (2017)
    Journal of Guidance, Control, and Dynamics
  • Study of Flexible Aircraft Body Freedom Flutter with Robustness Tools
    Item type: Journal Article
    Iannelli, Andrea; Marcos, Andrés; Lowenberg, Mark (2018)
    Journal of Guidance, Control, and Dynamics
    Body freedom flutter is a dynamic instability featuring strong coupling between rigid-body and elastic modes of the aircraft. Flexible configurations with adverse structural and geometric properties have been found susceptible to this phenomenon. Features that complicate its study are the presence of multiple modal instabilities and the different influence that system parameters have on each of them. The robust analysis framework based on linear fractional transformation modeling and structured singular value μ analysis is used in this work to study the body freedom flutter problem in a systematic way. The analyses performed showcase the potential of these methods, not only in supplying a characterization of the system in terms of its robustness but also in gaining further understanding of the body freedom flutter problem and reconciling the results with physical features. It is also shown that the robust modeling analysis framework complements the conventional, state-of-practice methods while allowing the study of highly coupled systems (of which the flexible aircraft is an example) to be addressed in an incremental and methodological manner. For this study, a simplified wing model is augmented including the short-period approximation aircraft model and the rigid–elastic coupling terms. The proposed model captures properties and trends of both restrained wing flutter and body freedom flutter instabilities.
  • Improved Multi-Aircraft Ground Trajectory Prediction for Air Traffic Control
    Item type: Journal Article
    Lymperopoulos, Ioannis; Lygeros, John (2010)
    Journal of Guidance, Control, and Dynamics
  • Continuous-Time Estimation of Attitude Using B-Splines on Lie Groups
    Item type: Journal Article
    Sommer, Hannes; Forbes, James R.; Siegwart, Roland; et al. (2016)
    Journal of Guidance, Control, and Dynamics
  • Distributed Dual-Quaternion Extended Kalman Filtering for Spacecraft Pose Estimation
    Item type: Journal Article
    Hudoba de Badyn, Mathias; Binz, Jonas; Iannelli, Andrea; et al. (2025)
    Journal of Guidance, Control, and Dynamics
    In this paper, a distributed dual-quaternion multiplicative extended Kalman filter for the estimation of poses and velocities of individual satellites in a fleet of spacecraft is analyzed. The proposed algorithm uses both absolute and relative pose measurements between neighboring satellites in a network, allowing each individual satellite to estimate its own pose and that of its neighbors. By utilizing the distributed Kalman consensus filter, a novel sensor and state-estimate fusion procedure is proposed that allows each satellite to improve its own state estimate by sharing data with its neighbors over a communication link. A leader-follower approach, whereby only a subset of the satellites has access to an absolute pose measurement, is also examined. In this case, followers rely solely on the information provided by their neighbors, as well as relative pose measurements to those neighbors. The algorithm is tested extensively via numerical simulations, and it is shown that the approach provides a substantial improvement in performance over the scenario in which the satellites do not cooperate. A case study of satellites swarming an asteroid is presented, and the performance in the leader-follower scenario is also analyzed.
  • Closed-Loop Identification of Flexible Structures: An Experimental Example
    Item type: Journal Article
    Smith, Roy (1998)
    Journal of Guidance, Control, and Dynamics
    This paper describes the application of a closed-loop identification procedure to a flexible structure: the JPL CSI Phase~B testbed. The approach is based on an indirect, closed-loop identification procedure, recently developed by Van den Hof and Schrama, which gives a consistent model estimate in the case where the system noise/output disturbance model is not accurate. The procedure is modified and applied, in the frequency domain, to closed-loop data from a flexible structure control experiment. The results of the analysis are compared to a purely open-loop frequency domain identification approach. Enhancements to the experimental configuration are also discussed.
  • Efficient nonlinear actuator fault detection and isolation system for unmanned aerial vehicles
    Item type: Journal Article
    Ducard, Guillaume; Geering, Hans P. (2008)
    Journal of Guidance, Control, and Dynamics
  • Full-Order Solution to the Attitude Reset Problem for Kalman Filtering of Attitudes
    Item type: Journal Article
    Gill, Rajan; Mueller, Mark W.; D'Andrea, Raffaello (2020)
    Journal of Guidance, Control, and Dynamics
Publications1 - 10 of 19