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AN INTRODUCTION
Single Reference Station RTK
Network RTK
Network RTK—Is it worth it?
Example—Using Network RTK
DIFFERENT METHODS
Evaluating Network RTK Methods
The Network & Rover Relationship
Introducing the Different Methods
i-MAX & Virtual Reference Station
MAX Corrections
Summary of the Different Methods
Remember
 

Network & Rover Relationship

Why is this relationship important? Well, as you read through this Section keep in mind the five criteria stated above.

To help describe why this relationship is important, let’s define four basic parts (Fig. 2):

Figure 2:
Four basic parts of the relationship between
the server and the rover in Network RTK


Four Basic Parts
  1. Observing Common Satellites: The rover and the network server (through the reference stations) are observing a common set of satellites.
  2. Resolving Network Ambiguities: Using an appropriate algorithm, the network server resolves the ambiguities of the network and reduces the satellite data to this common ambiguity.
  3. Generating RTK Corrections: The server generates and sends the RTK corrections to the rover in either a standard or nonstandard (ambiguous) representation.
  4. RTK Solution: The rover uses the RTK corrections to compute an RTK solution.

Why are These Four Parts Important?

These four parts are important as they help us understand how each of the methods differ and more importantly it helps us evaluate them.

The RTK solution is the most important part to the user. A user wants the solution to be reliable, accurate, consistent, traceable and repeatable.

The goal of the rover is to meet all of these criteria for the user. However, whether or not the rover can achieve this goal is dependent on the RTK corrections it receives from the server, which in turn are dependent on the method being used by the server.

The common satellites define the satellite observation dataset that is available. As previously described, how much of this dataset is represented by the RTK corrections can mean the difference between achieving an RTK solution or not.

 
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