Working with Terrastar PPP corrections

PPP is a positioning technique that removes or models GNSS system errors to provide a high level of position accuracy from a single receiver, without the use of a GNSS base.

A PPP solution depends on GNSS satellite clock and orbit corrections, generated from a network of global reference stations. Once the corrections are calculated, they are delivered to the end user via satellite. These corrections are used by the receiver to obtain a centimeter accuracy, depending on the selected service without any GNSS local base station.

PPP solution requires a period to converge to desired accuracy to resolve any local biases such as the atmospheric conditions, multipath environment and satellite geometry. The actual accuracy achieved, and the convergence time required is dependent on the quality of the corrections and how they are applied in the receiver. Up to 3 cm accuracy is possible.

In Zenith60 PPP can be used standalone, to work with centimeter accuracy where a base or NTRIP is not available, or in combination with a standard RTK, to operate when the RTK data-link is down.

To more information on how to activate and use Terrastar PPP corrections refer to X-PAD Ultimate help portal.