{
  "abstract": "This paper proposes a saturated high-gain observer for a class of state-affine nonlinear systems with coupled structures under sampled-output measurements. The study is motivated by state estimation for quadrotor trajectory tracking, where output measurements are available only at large sampling intervals and are corrupted by noise. Although continuous-discrete high-gain observers are effective for reconstructing unmeasured states, large correction gains may induce the peaking phenomenon during transient stages, producing aggressive estimated signals that can affect the closed-loop response. To address this issue, the proposed observer introduces saturated correction terms that explicitly bound the transient injection signals while preserving the convergence properties of the high-gain framework. This strategy enables aggressive observer gain selection to accelerate convergence dynamics while completely suppressing transient peaking in the estimated states. The proposed observer is applied to a quadrotor trajectory-tracking problem, and numerical simulations are conducted under large sampling periods and measurement noise.",
  "abstract_shown": true,
  "affiliations": [
    "Tecnológico Nacional de México, Instituto Tecnológico de Hermosillo, Av. Tecnológico 115, Hermosillo 83170, Sonora, Mexico"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 1,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Omar Hernández-González"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/bh727885pmbkp.bib",
  "cited_by": 0,
  "doi": "10.3390/math14203800",
  "fulltext_url": null,
  "id": "bh727885pmbkp",
  "issns": [
    "2227-7390"
  ],
  "landing_url": "https://www.mdpi.com/2227-7390/14/20/3800",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2207|Adaptive Control of Nonlinear Systems"
    ]
  ],
  "openalex": "W7223023356",
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-20",
  "publisher": "MDPI AG",
  "ris": "https://research.draconitic.com/paper/bh727885pmbkp.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:29Z",
      "native_id": "10.3390/math14203800",
      "source": "crossref",
      "url": "https://www.mdpi.com/2227-7390/14/20/3800"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "issn:2227-7390",
      "subfield": "general"
    }
  ],
  "title": "Saturated High-Gain Observer for Quadrotor Trajectory Tracking Under Sampled Outputs",
  "title_text": "Saturated High-Gain Observer for Quadrotor Trajectory Tracking Under Sampled Outputs",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:29Z",
  "url": "https://research.draconitic.com/paper/bh727885pmbkp",
  "venue": "Mathematics",
  "versions": []
}