Post-processed kinematic (PPK) and real-time kinematic (RTK) are not new technologies. They’ve been used in terrestrial surveying for years to improve the accuracy of GNSS data. Both methods correct the location of drone mapping data and remove the need for GCPs, bringing absolute accuracy down to cm (sub-inch) range.
However, when you factor in obstacles and environmental conditions common to aerial surveying, the difference between a PPK drone and an RTK drone becomes more important to understand. In fact, choosing the best correction method for your surveys will save you time and project costs. But how do you know which is best? The answer can be found in learning about how each method works, including its inherent strengths and drawbacks.