acpl00
September 12, 2019, 6:52am
#1
Dear people.
I do have a pixhawk 4 mini with GPS pixhawk 4.
It turns out that when I place the drone on the ground I get an altitude of 270 and in google maps it shall be of 225. There is an offset.
I am wondering what can be wrong? why do I get a wrong altitude?
Is there any parameter I can manipulate?
Thank you
Serge
September 13, 2019, 7:33pm
#2
Hello Google indicates a geographical altitude, the altitude that gives the Pixhawk PX4 is barometric (Barometer: MS5611) and it changes according to pession measured in Pascal, Hpa.
Altitude or height (sometimes known as 'depth') is defined based on the context in which it is used (aviation, geometry, geographical survey, sport, atmospheric pressure, and many more). As a general definition, altitude is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object. The reference datum also often varies according to the context. Although the term altitude is commonly used to mean the height above sea level of a location, i...
