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Main Authors: Narumi, Tatsuya, Sakai, Shin-ichiro
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2512.09551
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author Narumi, Tatsuya
Sakai, Shin-ichiro
author_facet Narumi, Tatsuya
Sakai, Shin-ichiro
contents This paper proposes an intrinsic pseudospectral convexification framework for optimal control problems with manifold constraints. While successive pseudospectral convexification combines spectral collocation with successive convexification, classical pseudospectral methods are not geometry-consistent on manifolds. This is because interpolation and differentiation are performed in Euclidean coordinates. We introduce a geometry-consistent transcription that enables pseudospectral collocation without imposing manifold constraints extrinsically. The resulting method solves nonconvex manifold-constrained problems through a sequence of convex subproblems. A six-degree-of-freedom landing guidance example with unit quaternions and unit thrust-direction vectors demonstrates the practicality of the approach and preserves manifold feasibility to machine precision.
format Preprint
id arxiv_https___arxiv_org_abs_2512_09551
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Trajectory Optimization by Successive Pseudospectral Convexification on Riemannian Manifolds
Narumi, Tatsuya
Sakai, Shin-ichiro
Optimization and Control
This paper proposes an intrinsic pseudospectral convexification framework for optimal control problems with manifold constraints. While successive pseudospectral convexification combines spectral collocation with successive convexification, classical pseudospectral methods are not geometry-consistent on manifolds. This is because interpolation and differentiation are performed in Euclidean coordinates. We introduce a geometry-consistent transcription that enables pseudospectral collocation without imposing manifold constraints extrinsically. The resulting method solves nonconvex manifold-constrained problems through a sequence of convex subproblems. A six-degree-of-freedom landing guidance example with unit quaternions and unit thrust-direction vectors demonstrates the practicality of the approach and preserves manifold feasibility to machine precision.
title Trajectory Optimization by Successive Pseudospectral Convexification on Riemannian Manifolds
topic Optimization and Control
url https://arxiv.org/abs/2512.09551