{
  "abstract": "This paper investigates how bistatic delay information improves the observability and localization performance of 3D moving targets in distributed Wi-Fi sensing. Motivated by emerging IEEE 802.11bf WLAN sensing, we consider one transmitter, multiple distributed receivers, and a single target with unknown position and velocity. We compare Doppler-only sensing with delay-Doppler sensing, in which delay-capable receivers provide additional bistatic path-length information for target localization. We derive the Fisher information matrix (FIM) and the position equivalent FIM (EFIM) for both sensing formulations. The resulting observability analysis shows that Doppler-only localization generically requires six receivers, whereas delay-Doppler localization can become locally identifiable with three receivers under non-degenerate geometry. We further study mixed receiver architectures in which only a subset of receivers provides delay estimates. Simulations with Wi-Fi-like bandwidths confirm the transition and quantify the roles of bandwidth, Doppler noise, receiver geometry, and delay-capable receiver availability.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.15641",
  "author_total": 5,
  "authors": [
    {
      "name": "Kyungmin Hong"
    },
    {
      "name": "Moein Ahmadi"
    },
    {
      "name": "Thomas Stifter"
    },
    {
      "name": "Mounim A. El Yacoubi"
    },
    {
      "name": "Bhavani Shankar Mysore R"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/egayjdm0ecym4.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.15641",
  "fulltext_url": null,
  "id": "egayjdm0ecym4",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.15641",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cs.IT"
    ],
    [
      "arxiv",
      "eess.SP"
    ],
    [
      "arxiv",
      "math.IT"
    ],
    [
      "openalex",
      "2208|Indoor and Outdoor Localization Technologies"
    ]
  ],
  "openalex": "W7221820140",
  "pdf_url": "https://arxiv.org/pdf/2610.15641",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-11",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/egayjdm0ecym4.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:15Z",
      "native_id": "2610.15641",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.15641"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "arxiv:math.IT",
      "subfield": "general"
    }
  ],
  "title": "Bistatic Delay-Doppler Sensing for 3D Target Localization in Distributed Wi-Fi Systems",
  "title_text": "Bistatic Delay-Doppler Sensing for 3D Target Localization in Distributed Wi-Fi Systems",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:15Z",
  "url": "https://research.draconitic.com/paper/egayjdm0ecym4",
  "venue": "arXiv",
  "versions": []
}