{
  "annotation_id": "df661d19-dfe2-405a-b1ce-e88603a44248",
  "date_created": "2026-03-02T18:00:56.884000Z",
  "date_modified": "2026-03-02T18:00:56.884000Z",
  "file_hash": "dc23c10f5a0ee825fae82ebf9617b3903cdb7715cea9b4f03b479776ea758c6b",
  "private": false,
  "record": {
    "abstract": "Two filter based approaches for deghosting of Ocean Bottom Cable data are\npresented. One of them is phase shifting of geophone followed by least square\nmatching of cross ghosted geophone and hydrophone data.In the second\napproach,phase shifting of geophone is followed by direct matching of\ngeophone\u0027s amplitude spectrum with that of the hydrophone within the seismic\nbandwidth.Results obtained from both approaches were found to be at par with\none of the proprietary softwares available with ONGC.",
    "arxiv_id": "physics/0501139",
    "authors": [
      "Jagmeet Singh",
      "K. Subramanyam"
    ],
    "categories": [
      "physics.geo-ph"
    ],
    "journal_ref": "Proceedings of the 5th Conference \u0026 Exposition on Petroleum\n  Geophysics,organized by SPG,India,2004",
    "title": "Deghosting of Ocean Bottom Cable Data:Two approaches",
    "url": "https://arxiv.org/abs/physics/0501139"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3e42a75e-3355-4e52-8951-d32d2396123e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}