![]() The NRTK (Network Real Time Kinematic) comes from the use of several bases of observations to optimize and model the information of corrections on the covered area. The mobile will then integrate this information into its positioning calculation to gain precision. RTK (Real Time Kinematic) is a device for transmitting correction data from an observation base to mobile GPS in real time. The principle of corrections of a GPS: RTK The different formats for transmitting corrections. ![]() Within moments, the GPS will converge to centimeter accuracy.įor more than 15 years, the Orpheon network has offered real-time RTK Full GNSS precision increase GPS correction services allowing users, using a single GNSS sensor, to position themselves with centimeter precision in the national reference anywhere in France and in the West Indies. After identifying itself on the server and giving its initial position, the GPS will receive a data stream every second containing the correction parameters to be integrated into its positioning calculation. To access the corrections, the precision GPS must have internet access. It then becomes possible to integrate a centimetric precision RTK receiver in a compact, light and energy-efficient design to meet the requirements of these new applications and thus freeing imagination and creativity. Major manufacturers then offered increasingly integrated solutions adapted to each use where the precision of the receivers and the user interface are optimized to constantly improve productivity.īut today, the integration of precision GNSS chips is becoming more affordable by becoming affordable and making it easy to imagine all kinds of practical uses. Precision receivers have historically been developed for professional applications. Precision receivers (RTK), which will be able to integrate external correction data allowing them to increase their precision.Consumer receivers (Watches, telephones, tablets, cars etc…) which will work only in natural mode without the possibility of improving their precision thanks to corrections.We distinguish two types of GNSS receivers: It is thus possible to quantify the various errors and to correct them in order to then be able to share them with other GPS located in the same conditions (nearby). The correction data are obtained from fixed GPS (reference station) placed on positions whose coordinates are perfectly known. GPS will have to integrate additional data into their positioning calculations in order to correct the various errors related to this technology. Corrections to gain precisionįor its accuracy to be increased and usable in agricultural work, surveying, machine guidance or in many other fields of application (see) It requires corrections. This precision, which is sufficient for many consumer applications, can be corrected to obtain much better precision and make this technology usable by professionals for their precision work. Need to refine positionĪ standard GPS gives an approximate natural position with an accuracy of a few meters. This constellation of satellites, which was the first in history, therefore left its name to geopositioning technology. However, this term is actually the name of a set of 24 American satellites placed in orbit at an altitude of 20,000 km. Generally by misuse of language, we used the generic term GPS for Global Positioning System to describe the various geopositioning equipment. This term includes all the equipment and installations allowing positioning by satellites. ![]() GNSS stands for Geolocation and Navigation by a Satellite System. Our various services are marketed in the form of subscriptions or hourly packages. The Orphéon network is made up of nearly 220 observation stations, spread over the entire territory of mainland France and the West Indies.Īll of our stations form a large balanced RTK network that allows us to deliver centimetric GNSS corrections to our many customers to increase the accuracy of their precision GPS.
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