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Bibliographic Details
Main Author: Sebek, Michael
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2509.21425
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Table of Contents:
  • We present an extension of state-feedback pole placement for quaternionic systems, based on companion forms and the Ackermann formula. For controllable single-input quaternionic LTI models, we define a companion polynomial that annihilates its companion matrix, characterize spectra via right-eigenvalue similarity classes, and prove coefficient-matching design in controllable coordinates. We then derive a coordinate-free Ackermann gain expression valid for real target polynomials, and state its scope and limitations. Short examples demonstrate correctness, practical use, and numerical simplicity.