Abstract:

In magnetic heading measurement of unmanned aerial vehicles (UAV),it is necessary to compensate the magnetic deviation caused by ferromaterial onboard UAV. In order to lower the compensation cost and avoid the influence of surrounding ferromaterial,an automatic compensation method is put forward,using the data sampled while the UAV circles in the air. Using ellipse hypothesis,one can only compensate the deviation for UAV flying in horizontal plane by the data sampled while UAV flying in more than 5 directions.

Key words: sensor , technology,  , magnetic , deviation , compensation,  , ellipse , hypothesis,  , unmanned , aerial , vehicle,  , magnetic , heading , measurement