I am working on a project in which want to measure the vertical height of a jump in kitesurfing.
(I am also considering other Sensors like Acc/Gyro/Baro)
A sensor I would like to use is a GPS-Sensor. Due to the fact the 3D position measurement by GPS has an average error of ~2 metres, it is not precise enough. Instead I´d like to use the GPS-Speed-Data. The Speed-Data measured by GPS is much more precise, as it is based on Doppler-Shifting-Technology.
(How Does GPS Work? - RACELOGIC Support Centre)
Looking at the Outputs from GPS-Sensors you find that they only give you one "Speed"-Value. That leads to my questions: Does this speed value contain all speeds in all 3 Axis? Does it only measure horizontal speed? Does it measure vertical speed (Z-Axis)?
Is there a way to get the speed-measurement in only axis (in my case of measuring a jump: Z-Axis) from a GPS-Sensor?
Thank you very much for your answers!