What is the difference between the TOPIC of OSDK subscription height value?

Keywords: OSDK, telemetry, height/altitude

TOPIC_ALTITUDE_FUSIONED:

sea level height, data source: GPS, Barometer, IMU. Recommended height

TOPIC_ALTITUDE_BAROMETER:

Barometer to measure altitude

TOPIC_HEIGHT_HOMEPOINT:

Home point altitude (sea level) OSDK4.0 renamed: TOPIC_ALTITUDE_OF_HOMEPOINT

TOPIC_HEIGHT_FUSION:

Fusion height (ultrasonic, barometer, GPS, downsight, etc. fusion), height to ground. Depends on the downward looking object, effective range <10m

To obtain the altitude of the aircraft relative to the take-off point, the calculation method: TOPIC_ALTITUDE_FUSIONED - TOPIC_HEIGHT_HOMEPOINT

Note: This article is from Chinese and is translated by machine. If there is any suggestions, please point it out and we will correct it in time