High speed algorithm of multi-path terra in contour matching based on laser radar

The technology of terrain contour matching(TERCOM) is widely used in the aviation application.Relatively large speed error or pitch error declines the positioning accuracy.SITAN algorithm in the large initial position error cannot converge.A single path causes low precision and slow speed.The paper puts forward a new high speed terrain contour matching based on laser radar.The result of simulation verifies the conclusion.