Doris system

The Doris system includes all the instruments onboard the carrying satellite (antenna, receiver, oscillator), an international network of autonomous stations spread around the globe and a control and processing center that calculates the orbit of the satellites.

Whether onboard satellites or on the ground stations network, the efficacy of the system has evolved over the years to achieve a precision up to the centimeter with Jason-1. The integration of Diode, software that calculates real-time location and very precise velocity of the satellite, marked a milestone advance.