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In our previous blog, Tech Chat | Which is better among Static Survey, RTK or PPK?, we compared static survey, RTK, and PPK from a general perspective, focusing on their basic principles and typical application scenarios. That article helped clarify which positioning method is suitable for different types of projects.

In the previous blog, we have introduced how to conduct the field work of PPK survey. In this article, let us learn together about how to deal with the collected raw data and obtain accurate positioning results.

In daily GNSS surveying, RTK should be the most popular survey method, which can improve the positioning accuracy to centimeter-level based on the real-time correction data sent from the base station. Normally, the correction data was sent at a frequency of 1 Hz.

With the rapid development of the high precision GNSS industry, the GNSS surveys are becoming more and more popular worldwide. When selecting the GNSS products, we can see the static accuracy, RTK accuracy and PPK accuracy in the specifications. Of these common GNSS measurement methods, is the higher accuracy the better? What's the difference between these methods, and in which applications should we choose which corresponding method?