gx/ix processing

Tight-coupling technology and PPK

Custom developed GNSS processing engine and tight-coupling technology for base station processing and enhanced urban performance in real-time and post-process.


Advanced GNSS/INS processing

Want RTK accuracy without having to pay for expensive post-processing software? Need data as accurate as possible in challenging environments, but don’t have the budget or space for a cumbersome FOG IMU? The OxTS gx/ix processing technology can help. It’s our own RTK processing engine as well as a tightly-coupled integration of the GNSS and IMU, meaning you can add base station corrections in our free NAVsolve post-processing software for cm-level RTK accuracy and get much improved performance in GNSS obstructed areas with our great value systems.

Maximum accuracy

It’s not always easy or feasible to transmit RTK corrections in real-time. Not having access to a mobile base station, can’t get a radio connection to one, don’t have a modem to connect to subscription services, or travelling distances where the baseline is too long are some reasons that could prevent applying corrections in real-time. Now with gx/ix processing, if you have logged base station corrections or can download them from a CORS network, you can add them in post-processing and achieve the highest accuracy, down to the centimetre.

Maximum reliability

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. The tight-coupling of the GNSS and IMU with gx/ix means that even when fewer than 4 satellites are visible, the raw GNSS data from any available satellites is still integrated into the navigation solution to provide updates and greatly reduce position drift. RTK relock time after brief obstructions is also improved with inertial relock.


Open road ADAS sensor validation

Autonomous vehicle test and development

Urban mobile mapping

RINEX post-processing


gx/ix technology leaflet
gx/ix brochure

Link to gx/ix FAQ