When the ultra-precisely machined surface is measured with pointing method based on the differential confocal microscope,the tilt angle of the surface to be measured influences the pointing signal,as well as the measuring accuracy and resolution of the treated surface.

This research compared pilots cognitive effects and rating opinion to the display format of head up display(HUD)two weapon aiming symbols of missiles and guns in new fighters,and the advice schemes of their displays were proposed.

In this paper various location methods and its characteristics suited for mobile node location in deep space circumstance are studied for deep space probing, and a kind of algorithm with optimized data fusion and hybrid location model based on channel aiming and framing location is presented.