Abstract:

For the scene matching aided inertial integrated navigation system needs to get both the aircraft position errors and the course deviation relative to the preset flight path simultaneously,a real time multi-level scene matching algorithm is proposed. There are two levels in the algorithm. In the first level,a center -point’s 4 neighborhood anti-distortion algorithm is put forward. It can tolerate rotation and little scale to make the location in pixel precise.

Key words: aircraft , control, navigation , technology,  , image , matching,  , log , polar , transform , (LPT),  , bifurcation , extracting,  , least , square , algorithm