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    "abstract": "In the process of defining a new system for digital terrestrial TV broadcasting, operational constraints related to frequency management, as well as service concepts in agreement with current and future trends, constitute the original requirements on which the broadcasters have to base their developments.",
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      "note": "Backfilled from SMPTE canonical repository (smpte-canonical-audit/canonicalLibrary.*.json)",
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    "authors": [
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        "name": "Bertrand Sueur"
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      {
        "name": "Damien Castelain"
      },
      {
        "name": "Gabriel Degoulet"
      },
      {
        "name": "Marc Rivière"
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      {
        "name": "Bernard Le Floch"
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      "confidence": "high",
      "note": "Canonical-confirmed full paper (summary-abstract set is orig-research in the SMPTE canonical repos); HIGHWIRE-era abstract label was a delivery artifact",
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      "source": "resolved",
      "updated": "2026-07-09T19:12:47.628Z",
      "version": "contenttype-fixes@v1"
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      "holder": "Society of Motion Picture and Television Engineers, Inc.",
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        "confidence": "high",
        "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1994_1/smptem_1994_1.xml/10.5594_M001291.xml)",
        "source": "parsed",
        "updated": "2026-05-22T21:44:19.125Z",
        "version": "smpte-conference-paper-nlm@v1"
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        "confidence": "high",
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        "source": "parsed",
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      "confidence": "high",
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      "source": "parsed",
      "updated": "2026-05-22T21:44:19.125Z",
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      "confidence": "high",
      "note": "Derived from DOI 10.5594/M001291",
      "source": "parsed",
      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
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      "confidence": "medium",
      "note": "Composed from venue title, volume/issue and date",
      "source": "inferred",
      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
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    "docTitle": "Digital Terrestrial Television Using the COFDM Technique",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1994_1/smptem_1994_1.xml/10.5594_M001291.xml)",
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      "version": "smpte-conference-paper-nlm@v1"
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      "note": "NLM <article> — SMPTE conference paper",
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      "updated": "2026-05-22T21:44:19.125Z",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1994_1/smptem_1994_1.xml/10.5594_M001291.xml)",
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      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
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    "href": "https://doi.org/10.5594/M001291",
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      "confidence": "high",
      "note": "Constructed from DOI 10.5594/M001291",
      "source": "inferred",
      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
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    "number": "1",
    "number$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1994_1/smptem_1994_1.xml/10.5594_M001291.xml)",
      "source": "parsed",
      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
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    "pages": "145–152",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1994_1/smptem_1994_1.xml/10.5594_M001291.xml)",
      "source": "parsed",
      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
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    "publicationDate": "1994-01-01",
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      "confidence": "high",
      "note": "Day absent in NLM source — padded to 01",
      "source": "parsed",
      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
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    "publisher": "SMPTE",
    "publisher$meta": {
      "confidence": "high",
      "note": "Normalised to registry \"SMPTE\" convention from NLM publisher-name (The Society of Motion Picture and Television Engineers)",
      "source": "inferred",
      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
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    "publisherLocation": {
      "city": "White Plains, NY",
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        "confidence": "high",
        "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1994_1/smptem_1994_1.xml/10.5594_M001291.xml)",
        "source": "parsed",
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    "publisherLocation$meta": {
      "confidence": "high",
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      "source": "parsed",
      "updated": "2026-05-22T21:44:19.125Z",
      "version": "smpte-conference-paper-nlm@v1"
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    "resolvedHref": "https://journal.smpte.org/conferences/ITU/SMPTE%20Tutorial%20on%20Digital%20Terrestrial%20Broadcasting%20(DTTB)/16/",
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      "confidence": "high",
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      "source": "resolved",
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        "confidence": "medium",
        "note": "No explicit status in NLM source — conference papers default active",
        "source": "inferred",
        "updated": "2026-05-22T21:44:19.125Z",
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    "volume": "1994",
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      "confidence": "high",
      "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1994_1/smptem_1994_1.xml/10.5594_M001291.xml)",
      "source": "parsed",
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