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astro-ph.IM2026
Robust Angles-Only Initial Relative Orbit Determination Using Polynomial Optimization
Xingyu Zhou, Malcolm Macdonald, Roberto Armellin +2
This paper develops a robust angles-only IROD method based on polynomial optimization for arbitrary nonlinear dynamics. First, the relative motion is approximated by high-order Tay…
astro-ph.IM2025
Single-Impulse Reachable Set in Arbitrary Dynamics Using Polynomials
Xingyu Zhou, Roberto Armellin, Dong Qiao +1
This paper presents a method to determine the reachable set (RS) of spacecraft after a single velocity impulse with an arbitrary direction, which is appropriate for the RS in both…
astro-ph.IM2024
Time-Varying Directional State Transition Tensor for Orbit Uncertainty Propagation
Xingyu Zhou, Roberto Armellin, Dong Qiao +1
The directional state transition tensor (DSTT) reduces the complexity of state transition tensor (STT) by aligning the STT terms in sensitive directions only, which provides compar…