{
  "id": 324676,
  "title": "🛰️ Great interactive in-depth explanation of GPS",
  "url": "/competitions/smartphone-decimeter-2022/discussion/324676",
  "author_name": "",
  "post_date": "2022-05-12T15:58:36.154022100Z",
  "votes": 11,
  "comment_count": 1,
  "views": 0,
  "content": "<p>I've just discovered an <a href=\"https://ciechanow.ski/gps/\" target=\"_blank\">amazing interactive introduction to GPS</a>.</p>\n<p>This starts with the absolute basics in a small 2D simulation before adding the complexities of having to deal with 3D, receiver clocks not being in sync with the satellites, coping with errors, correcting for relativity, understanding orbits &amp; ephemeris, how the GPS signals are encoded and much, much more.</p>\n<p>I hope you find it useful.</p>",
  "messages": [
    {
      "id": "1786111",
      "postDate": "05/12/2022 15:58:36",
      "content": "<p>I've just discovered an <a href=\"https://ciechanow.ski/gps/\" target=\"_blank\">amazing interactive introduction to GPS</a>.</p>\n<p>This starts with the absolute basics in a small 2D simulation before adding the complexities of having to deal with 3D, receiver clocks not being in sync with the satellites, coping with errors, correcting for relativity, understanding orbits &amp; ephemeris, how the GPS signals are encoded and much, much more.</p>\n<p>I hope you find it useful.</p>",
      "rawMarkdown": "I've just discovered an [amazing interactive introduction to GPS](https://ciechanow.ski/gps/).\n\nThis starts with the absolute basics in a small 2D simulation before adding the complexities of having to deal with 3D, receiver clocks not being in sync with the satellites, coping with errors, correcting for relativity, understanding orbits & ephemeris, how the GPS signals are encoded and much, much more.\n\nI hope you find it useful.",
      "votes": null
    },
    {
      "id": "1787085",
      "postDate": "05/13/2022 15:02:57",
      "content": "<p>This is a fantastic resource - thank you so much for sharing it!</p>",
      "rawMarkdown": "This is a fantastic resource - thank you so much for sharing it!",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 1787085,
      "author_name": "",
      "author_url": "",
      "post_date": "05/13/2022 15:02:57",
      "content": "<p>This is a fantastic resource - thank you so much for sharing it!</p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "1786111": "I've just discovered an [amazing interactive introduction to GPS](https://ciechanow.ski/gps/).\n\nThis starts with the absolute basics in a small 2D simulation before adding the complexities of having to deal with 3D, receiver clocks not being in sync with the satellites, coping with errors, correcting for relativity, understanding orbits & ephemeris, how the GPS signals are encoded and much, much more.\n\nI hope you find it useful.",
    "1787085": "This is a fantastic resource - thank you so much for sharing it!"
  },
  "source": "meta"
}