In the application of GPS measurement methods, there is an indispensable application of technology, that is, the carrier phase difference technology, which can also be referred to as RTK. RTK is the carrier phase difference technology, which can process the carrier phase observations of two measurement stations in real-time. With the expansion of RTK applications, the accuracy and speed of RTK have also been greatly improved. How to use RTK? What exactly is RTK? Let’s find out together.
What exactly is RTK
RTK is actually a new type of technology, which is often used in GPS measurement. It can process the carrier phase observations of two measurement stations in real time and is a very good differential method. RTK sends the carrier phase collected by the base station to the user’s receiving platform, so as to calculate the coordinates by calculating the difference. The application of this technology makes up for the shortcomings of traditional measurement technology that requires post-calculation. RTK can obtain centimeter-level positioning accuracy in real-time in the field, which is a major milestone in GPS applications.
RTK has been widely used in engineering stakeout, topographic mapping, and various control measurement needs. The emergence of RTK has greatly improved the efficiency of operations in these industries. Among GPS measurement methods, RTK has many advantages, so its use is very common.
How to use RTK
1. Establish a base station: Set up an RTK base station in a place with a wide field of view and high terrain to facilitate the reception of satellite signals and the transmission of UHF signals. If the distance of the mobile station is relatively far, it is necessary to increase the radio antenna and long pole.
2. Establish task: use computer software to create a new task, and establish a coordinate system according to the actual situation. Save it after creating a new task to avoid loss of information and data.
3. Set the base station for RTK.
4. Set up the rover for RTK.
5. Point correction: Convert the coordinate system to the local plane coordinate system.
6. Measurement: After completing the above five steps, it can be used for RTK measurement.
The above are the steps for using RTK. I hope it will help you understand RTK technology. You may refer to it when using RTK.
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