What is post processing kinematic?

Post processed kinematic (PPK) is a surveying technology used by drones to correct location data in images captured by global positioning systems (GPS) and other Global Navigation Satellite Systems (GNSS) after it has been collected and uploaded.

What is PPK mapping?

Post Processed Kinematic (PPK) is a GPS correction technology technique that corrects location data after it is collected and uploaded. The data can be uploaded to the cloud for processing or processed using specialise software on your desktop after the flight has been concluded.

How does PPK GPS work?

In a PPK workflow, the drone attaches geocoordinates to each image based on an onboard GPS. Also during flight, a base unit (which could be a base station, an AeroPoint, or CORS network) also records positional information, but with more accurate triangulation.

What does RTK mean in drones?

Real-time kinematic (RTK) processing on a drone records GPS information and geotags images as they’re captured during flight. The GPS location is recorded for the center of each image. While the drone is in flight, an active base station on the ground sends it raw GPS data.

What is the difference between DGPS and RTK?

So, the difference between RTK and DGPS is that DGPS is the traditional differential GPS. RTK is a specific type of DGPS. but it uses a newer technology than the traditional DGPS. RTK stands for real-time kinematic and commonly uses the RTCM protocol.

What is post processing surveying?

The Post Processing method of involves downloading of complete survey data and processing in office. While Real Time Processing of GPS data involves the processing of data in real time or say when the GPS survey is going on.

Which is more accurate RTK or PPK?

Comparing Real-Time Kinematic and Post Processed Kinematic RTK corrects during the flight, and PPK corrects after flight. With what we know today, using GPS correctional technology can improve data gathering by 75%.

How accurate is PPK?

Based on this data, with RMSE errors of just 2.45cm horizontal and 5.08cm vertical, we feel confident that the PPK GPS system as implemented in the E384 and E386 can deliver reliable scale accuracy when used by itself and absolute accuracy when used in conjunction with a known good coordinate.

Is RTK drone worthwhile?

Is it worth it? If the stated goal is to produce a topographic or planimetric survey, then the Phantom 4 RTK is a more capable drone than the Phantom 4 Pro. The main benefit is that you will get the same accuracy with fewer ground control points.