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For surveying or GIS, positioning data can meet the demands. But for some navigation applications such as auto-steering systems for agricultural operations or guiding UAVs, it is crucial to get the orientation information. We primarily describe this orientation using three parameters: pitch, heading, and roll. Roll refers to rotation around the X axis, pitch is rotation around the Y axis, and heading denotes rotation around the Z axis (as illustrated in the accompanying image).

In previous blogs, we explored the distinctions between three common height measurements—geodetic height, normal height, and orthometric height. In our daily RTK surveys that based on reference ellipsoids, we primarily encounter geodetic height. However, sometimes we may need normal height that aligns better with the local terrain.

Attitude sensor is a common sensor that applied in various systems to provide attitude data of the system. Our SAgro100 auto-steering system has also applied attitude sensors to obtain tractor attitude & heading data.

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.

During the past year, SAgro100 automated steering system has helped many farmers in different countries and areas improve their working efficiency and productivity. In order to help our users to get started easier, we have summarized its frequently asked questions.