{"id":1433,"date":"2025-02-28T12:37:36","date_gmt":"2025-02-28T12:37:36","guid":{"rendered":"https:\/\/oxts.com\/?page_id=1433"},"modified":"2025-05-07T10:33:22","modified_gmt":"2025-05-07T10:33:22","slug":"gx-ix-tight-coupling-processing","status":"publish","type":"page","link":"https:\/\/www.oxts.com\/zh\/solutions\/inertial-navigation-solutions\/tools-utilities-and-add-ons\/gx-ix-tight-coupling-processing\/","title":{"rendered":"gx\/ix \u7d27\u5bc6\u8026\u5408\u5904\u7406"},"content":{"rendered":"\n
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gx\/ix\u2122 tight-coupling processing<\/h1>\n\n <\/div>\n\n <\/div>\n\n
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gx\/ix\u2122<\/b> tight-coupling processing<\/h4>\n\n

gx\/ix\u2122 is OXTS\u2019 proprietary software application that provides users with an increased amount of time spent with accurate data where GNSS conditions are difficult. It is made up of OXTS\u2019 RTK\/PPK navigation processing engine and tightly-coupled integration of the GNSS and IMU sensors.<\/strong><\/p>\n

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Whether you\u2019re using an OXTS Inertial Navigation System (INS) for Automotive<\/strong><\/a>,\u00a0Autonomy<\/strong><\/a>\u00a0or\u00a0Survey and Mapping<\/strong><\/a> based applications OXTS devices with gx\/ix\u2122<\/strong>\u00a0enabled will give you\u00a0more accurate data for longer!<\/strong><\/p>\n<\/div>\n\n \n \n\n\n\n\n\n <\/div>\n <\/div>\n\n

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Compatible satellite constellations<\/h4>\n\n

Compatible with all four satellite constellations, GNSS position is tightly-coupled with the IMU\u2019s heading, pitch and roll measurements to provide test engineers and professional surveyors with centimetre-level accurate data.<\/p>\n

In environments where GNSS signal is difficult to obtain consistently, such as urban canyons, centimetre-level position accuracy can be difficult to achieve without additional help.<\/p>\n<\/div>\n\n \n \n\n\n\n\n\n <\/div>\n <\/div>\n\n

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Tight coupling of the devices GNSS and IMU sensors can have a positive impact on the amount of time spent with good usable position data both in real-time and post-process.<\/p>\n

Please note<\/strong> \u2013 in some cases RTK corrections can be used, however receiving corrections in real-time isn\u2019t always feasible, so tight coupling of the GNSS and IMU sensors is required.<\/p>\n<\/div>\n\n \n \n\n\n\n\n\n <\/div>\n <\/div>\n\n

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Advanced GNSS\/INS processing<\/h3>\n <\/span>\n
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  1. Want RTK accuracy without having to pay for expensive post-processing software?<\/li>\n
  2. Need data as accurate as possible in challenging environments, but don\u2019t have the budget or space for a cumbersome FOG IMU?<\/li>\n
  3. OXTS gx\/ix\u2122\ufe0f<\/a>\u00a0processing can help<\/li>\n<\/ol>\n<\/div>\n <\/div>\n
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    gx\/ix\u2122\ufe0f<\/a>\u00a0is made up of our own RTK\/PPK navigation processing engine, as well as a tightly-coupled integration of the GNSS and IMU, which combine to provide cm-level position accuracy and get much improved performance in GNSS obstructed areas with our great value systems.<\/p>\n

    You can add multiple base-station correction files in our\u00a0free NAVsolve post-processing software<\/a>\u00a0to get the best performance in challenging environments, even over long baselines<\/p>\n<\/div>\n <\/div>\n <\/div>\n\n \n\n\n\n\n\n <\/div>\n <\/div>\n<\/article>

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    Maximum flexibility<\/h3>\n <\/span>\n
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    It\u2019s not always easy or feasible to transmit RTK corrections in real-time. Some reasons that could prevent applying corrections in real-time include:<\/p>\n<\/div>\n <\/div>\n

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    1. Not having access to a local base station<\/li>\n
    2. Can\u2019t get a radio connection to your base station<\/li>\n
    3. Don\u2019t have a modem to connect to subscription based correction services<\/li>\n
    4. Travelling distances where the baseline is too long<\/li>\n<\/ol>\n

      gx\/ix\u2122\ufe0f<\/a>\u00a0can be used in real-time or post-process, enabling the maximum amount of flexibility based on your specific requirements.<\/p>\n<\/div>\n <\/div>\n <\/div>\n\n \n\n\n\n\n\n <\/div>\n <\/div>\n<\/article> <\/div>\n <\/div>\n <\/div>\n<\/div>\n\n\n \n\n

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      Key Features<\/b><\/h3>\n\n <\/div>\n <\/div>\n
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      Environments such as urban canyons, bridges, and tree cover can be a nightmare for GNSS-based systems due to multipath, reduced satellite visibility, and complete outages. gx\/ix\u2122\ufe0f<\/a>\u00a0offers some key features that help deal with these environments:<\/p>\n<\/div>\n \n\n\n\n\n\n \n <\/div>\n

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