OXTS RT3000 v4 - Scope of Delivery; Standard Kit Components

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Internal data logging enables the data to be reprocessed post-mission. Data can be collected in the unit,

downloaded using File Transfer Protocol (FTP), processed on a PC and viewed using NAVdisplay.

Easy operation

There is minimal configuration required to use the system. The configuration can be saved to the RT so it can

operate autonomously without user intervention. A lot of work has been put into the initialisation of the inertial

algorithms so the RT can reliably start to navigate in the vast majority of situations.

The single unit contains inertial sensors, GNSS receiver, data storage and CPU. One or two antennas need to be

mounted outside the vehicle where they have a clear view of the sky. A 10–50 V dc power supply can be obtained

from most vehicles. A laptop computer allows real-time viewing of the results.

Self-correcting

Unlike conventional inertial navigation systems, the RT uses GNSS to correct all its measurements. GNSS

makes measurements of position, velocity and (for dual antenna systems) heading. Using these

measurements, the RT is able to keep other measurements, such as roll and pitch, accurate. Tight coupling of

the GNSS and inertial measurements means the raw GNSS data can also be used. There is no drift from the RT

in any of the measurements while GNSS is present.

Advanced processing

In poor GNSS environments, drift times can be halved by using the combined results of processing forwards

and backwards in time. Our proprietary gx/ix™ processing engine can further improve performance with single

satellite aiding algorithms and tight coupling of the inertial and GNSS measurements, meaning position

updates even with fewer than four satellites in view.