{
  "id": 335748,
  "title": "Velocity coordinate conversion? (ECEF -> BLH)",
  "url": "/competitions/smartphone-decimeter-2022/discussion/335748",
  "author_name": "",
  "post_date": "2022-07-07T17:31:49.586077600Z",
  "votes": 7,
  "comment_count": 2,
  "views": 0,
  "content": "<p>I know how to convert <strong>the position</strong> from an ECEF coordinate system to a BLH coordinate system.<br>\n<code>pm.ecef2geodetic</code></p>\n<p>I want to convert <strong>the speed</strong> of the ECEF coordinate system to the speed of the BLH coordinate system.  If anyone knows how to do it, could you please tell me?</p>",
  "messages": [
    {
      "id": "1847181",
      "postDate": "07/07/2022 17:31:49",
      "content": "<p>I know how to convert <strong>the position</strong> from an ECEF coordinate system to a BLH coordinate system.<br>\n<code>pm.ecef2geodetic</code></p>\n<p>I want to convert <strong>the speed</strong> of the ECEF coordinate system to the speed of the BLH coordinate system.  If anyone knows how to do it, could you please tell me?</p>",
      "rawMarkdown": "I know how to convert **the position** from an ECEF coordinate system to a BLH coordinate system.\n`pm.ecef2geodetic`\n\nI want to convert **the speed** of the ECEF coordinate system to the speed of the BLH coordinate system.  If anyone knows how to do it, could you please tell me?",
      "votes": null
    },
    {
      "id": "1847558",
      "postDate": "07/08/2022 01:47:36",
      "content": "<p><code>pm.ecef2enuv</code>？</p>\n<p>Please note that i am a beginner.<br>\nVelocity is expressed in enu coordinate system and<br>\nposition is expressed in BLH coordinate system.<br>\nYou may be able to refer to my NOTEBOOK.<br>\n<a href=\"https://www.kaggle.com/code/tyonemoto/gnss-kf-vs-gnss-and-imu-ekf\" target=\"_blank\">https://www.kaggle.com/code/tyonemoto/gnss-kf-vs-gnss-and-imu-ekf</a></p>",
      "rawMarkdown": "`pm.ecef2enuv`？\n\nPlease note that i am a beginner.\nVelocity is expressed in enu coordinate system and\nposition is expressed in BLH coordinate system.\nYou may be able to refer to my NOTEBOOK.\nhttps://www.kaggle.com/code/tyonemoto/gnss-kf-vs-gnss-and-imu-ekf",
      "votes": null
    },
    {
      "id": "1847615",
      "postDate": "07/08/2022 03:01:51",
      "content": "<p>thank you for teaching me! I'll give it a try.</p>",
      "rawMarkdown": "thank you for teaching me! I'll give it a try.",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 1847558,
      "author_name": "tyonemoto",
      "author_url": "",
      "post_date": "07/08/2022 01:47:36",
      "content": "<p><code>pm.ecef2enuv</code>？</p>\n<p>Please note that i am a beginner.<br>\nVelocity is expressed in enu coordinate system and<br>\nposition is expressed in BLH coordinate system.<br>\nYou may be able to refer to my NOTEBOOK.<br>\n<a href=\"https://www.kaggle.com/code/tyonemoto/gnss-kf-vs-gnss-and-imu-ekf\" target=\"_blank\">https://www.kaggle.com/code/tyonemoto/gnss-kf-vs-gnss-and-imu-ekf</a></p>",
      "votes": null,
      "replies": [
        {
          "id": 1847615,
          "author_name": "watanabetakahiro",
          "author_url": "",
          "post_date": "07/08/2022 03:01:51",
          "content": "<p>thank you for teaching me! I'll give it a try.</p>",
          "votes": null,
          "replies": []
        }
      ]
    }
  ],
  "raw_markdown_by_id": {
    "1847181": "I know how to convert **the position** from an ECEF coordinate system to a BLH coordinate system.\n`pm.ecef2geodetic`\n\nI want to convert **the speed** of the ECEF coordinate system to the speed of the BLH coordinate system.  If anyone knows how to do it, could you please tell me?",
    "1847558": "`pm.ecef2enuv`？\n\nPlease note that i am a beginner.\nVelocity is expressed in enu coordinate system and\nposition is expressed in BLH coordinate system.\nYou may be able to refer to my NOTEBOOK.\nhttps://www.kaggle.com/code/tyonemoto/gnss-kf-vs-gnss-and-imu-ekf",
    "1847615": "thank you for teaching me! I'll give it a try."
  },
  "source": "meta"
}