1–20 of 33 hits
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    Efficient and Adaptive Orthogonal Finite Element Representation of the Geopotential

    Junkins, John L. / Younes, Ahmad Bani / Woollands, Robyn M. et al. | Springer Verlag | 2017
    novel way, through the use of array algebra and Kronecker operations. Approximation of test functions illustrates the resulting algorithms and ...
    Keywords: Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics)

    Accuracy and Efficiency Comparison of Six Numerical Integrators for Propagating Perturbed Orbits

    Atallah, Ahmed M. / Woollands, Robyn M. / Elgohary, Tarek A. et al. | Springer Verlag | 2020

    We present the results of a comprehensive study in which the precision and efficiency of six numerical

     ...
    Keywords: Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics)

    Multiple Revolution Solutions for the Perturbed Lambert Problem using the Method of Particular Solutions and Picard Iteration

    Free access
    Woollands, Robyn M. / Read, Julie L. / Probe, Austin B. et al. | Springer Verlag | 2017
    method of particular solutions and modified Chebyshev-Picard iteration. The ...
    Keywords: Method of particular solutions , Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics)

    Picard Iteration, Chebyshev Polynomials and Chebyshev-Picard Methods: Application in Astrodynamics

    Junkins, John L. / Bani Younes, Ahmad / Woollands, Robyn M. et al. | Springer Verlag | 2013
    ) Methods. The MCPI approach iteratively refines path approximation of the state trajectory for smooth nonlinear dynamical systems and this paper ...
    Keywords: Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Extraterrestrial Physics, Space Sciences

    Generalizations and Applications of the Lagrange Implicit Function Theorem

    Junkins, John L. / Turner, James D. / Majji, Manoranjan | Springer Verlag | 2009
    with respect to the parameters of the system model and/or functions describing the boundary condition. The generalizations thus realized are ...
    Keywords: Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Extraterrestrial Physics, Space Sciences

    Automatic Generation and Integration of Equations of Motion for Flexible Multibody Dynamical Systems

    Griffith, D. Todd / Turner, James D. / Junkins, John L. | Springer Verlag | 2005

    In this paper, we consider a new direction for generating and simultaneously solving equations of motion for

     ...
    Keywords: Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics)

    Efficient Computation of Optimal Low Thrust Gravity Perturbed Orbit Transfers

    Woollands, Robyn / Taheri, Ehsan / Junkins, John L. | Springer Verlag | 2020
    performing continuation on the thrust magnitude to reduce the sharpness of the control switches in early iterations and thus promote convergence. The ...
    Keywords: Method of particular solutions , Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics)

    Attitude and interlock angle estimation using split-field-of-view star tracker

    Singla, Puneet / Griffith, D. Todd / Katake, Anup et al. | Springer Verlag | 2007
    problem using a novel split-field-of-view star camera and three-axis rate gyros. The conventional spacecraft attitude algorithm has been modified ...
    Keywords: Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Extraterrestrial Physics, Space Sciences

    Modified Chebyshev-Picard Iteration Methods for Solution of Initial Value Problems

    Bai, Xiaoli / Junkins, John L. | Springer Verlag | 2012
    approximation basis, it is straightforward to distribute the computation of force functions and polynomial coefficients to different processors. A ...
    Keywords: Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Extraterrestrial Physics, Space Sciences

    Analytic Transfer Functions for the Dynamics & Control of Flexible Rotating Spacecraft Performing Large Angle Maneuvers

    Elgohary, Tarek A. / Turner, James D. / Junkins, John L. | Springer Verlag | 2015
    evolution of the system in space and time. A Generalized State Space (GSS) system of equations is constructed in the frequency domain to obtain ...
    Keywords: Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Extraterrestrial Physics, Space Sciences

    Considering Measurement Model Parameter Errors in Static and Dynamic Systems

    Woodbury, Drew P. / Majji, Manoranjan / Junkins, John L. | Springer Verlag | 2011
    redundant set of measurements. Inaccuracies in measurement model parameter estimates can lead to significant errors in the state estimates. This ...
    Keywords: Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Extraterrestrial Physics, Space Sciences

    Adaptation and Cooperation in Control of Multiple Robot Manipulators

    Sanyal, Amit K. / Verma, Ajay / Junkins, John L. | Springer Verlag | 2000

    We consider the dynamics and control of two or more multi-link robot manipulators cooperatively maneuvering a

     ...
    Keywords: Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics)

    How Nonlinear Is It? A Tutorial on Nonlinearity of Orbit and Attitude Dynamics

    Junkins, John L. / Singla, Puneet | Springer Verlag | 2004
    orbit dynamics and attitude dynamics, and some interesting connections and analogies between the two problems are explored. While an infinity of ...
    Keywords: Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics)

    Optimal Attitude and Position Determination from Line-of-Sight Measurements

    Crassidis, John L. / Alonso, Roberto / Junkins, John L. | Springer Verlag | 2000

    In this paper an optimal solution to the problem of determining both vehicle attitude and position using line-of

     ...
    Keywords: Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics)

    An Efficient and Robust Singular Value Method for Star Pattern Recognition and Attitude Determination

    Juang, Jer-Nan / Kim, Hye-Young / Junkins, John L. | Springer Verlag | 2004
    right singular vectors are invariant with respect to coordinate transformation and robust under uncertainty. One advantage of singular value ...
    Keywords: Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics)

    Preface

    Crassidis, John L. / Junkins, John L. / Howell, Kathleen C. et al. | Springer Verlag | 2009
    Keywords: Prestigious Journal , Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Extraterrestrial Physics, Space Sciences

      Preface

      Crassidis, John L. / Markley, F. Landis / Junkins, John L. et al. | Springer Verlag | 2006
      Keywords: Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Extraterrestrial Physics, Space Sciences

    Modified Chebyshev-Picard Iteration Methods for Solution of Boundary Value Problems

    Bai, Xiaoli / Junkins, John L. | Springer Verlag | 2011
    constraining the coefficients of the Chebyshev polynomials. Using Picard iteration and Clenshaw-Curtis quadrature, the presented methods iteratively ...
    Keywords: Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Extraterrestrial Physics, Space Sciences

    Unified Lambert Tool for Massively Parallel Applications in Space Situational Awareness

    Free access
    Woollands, Robyn M. / Read, Julie / Hernandez, Kevin et al. | Springer Verlag | 2017
    four individual algorithms, each of which is unique and better suited for solving a particular type of orbit transfer. The first is a Keplerian ...
    Keywords: Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics)

    Nonlinearity index of the cayley form

    Sinclair, Andrew J. / Hurtado, John E. / Junkins, John L. | Springer Verlag | 2006
    N-dimensional orientation, and a set of quasi velocities is defined equal to the corresponding angular velocity. The nonlinearity ...
    Keywords: Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Extraterrestrial Physics, Space Sciences

    A high order method for estimation of dynamic systems

    Majji, Manoranjan / Junkins, John L. / Turner, James D. | Springer Verlag | 2008
    study the interplay of major issues in nonlinear estimation such as model nonlinearity, measurement sparsity and initial condition uncertainty ...
    Keywords: Aerospace Technology and Astronautics , Mathematical Applications in the Physical Sciences , Extraterrestrial Physics, Space Sciences