21 citations · 57 across the 27 of their papers we have counts for
8 papers · 1 filter
Orbit Elements from Kepler Solutions in Projective Coordinates
Joseph T. A. Peterson, Manoranjan Majji, John L. Junkins
Closed-Form Kepler solutions in projective coordinates are used to define a corresponding set of eight orbit elements and obtain their governing equations for arbitrarily-perturbed…
Linear and Regular Kepler-Manev Dynamics via Projective Transformations: A Geometric Perspective
Joseph T. A. Peterson, Manoranjan Majji, John L. Junkins
This work presents a geometric formulation for transforming nonconservative mechanical Hamiltonian systems and introduces a new method for regularizing and linearizing central forc…
On-Manifold Low-Thrust Rephasing of Quasi-Periodic Orbits
Ian M. Down, Manoranjan Majji, Kathleen C. Howell
A bi-level optimal control framework is introduced to solve the low-thrust re-phasing problem on quasi-periodic invariant tori in multi-body environments where deviations away from…
Projective Transformations for Regularized Central-Force Dynamics: Hamiltonian Formulation
Joseph T. A. Peterson, Manoranjan Majji, John L. Junkins
This work introduces a Hamiltonian approach to regularization and linearization of central-force particle dynamics through a new canonical extension of the so-called "projective de…
Direct Pseudospectral Optimal Control by Orthogonal Polynomial Integral Collocation
Thomas L. Ahrens, Ian M. Down, Manoranjan Majji
This paper details a methodology to transcribe an optimal control problem into a nonlinear program for generation of the trajectories that optimize a given functional by approximat…
Uncertainty Estimators for Robust Backup Control Barrier Functions
David E. J. van Wijk, Ersin Das, Anil Alan +5
Designing safe controllers is crucial and notoriously challenging for input-constrained safety-critical control systems. Backup control barrier functions offer an approach for the…
Safe Multi-agent Satellite Servicing with Control Barrier Functions
Deep Parikh, David van Wijk, Manoranjan Majji
The use of control barrier functions under uncertain pose information of multiple small servicing agents is analyzed for a satellite servicing application. The application consists…
Covariance Analysis of Attitude and Angular Rate Estimation using Accelerometers
Koya Yamamoto, Patrick Kelly, Manoranjan Majji +1
In this work a method for using accelerometers for the determination of angular velocity and acceleration is presented. Minimum sensor requirements and insights into how an array o…