trajectory analysis
4.Through improving the shooting training system,the author applied laser test technique to archery technical analysis and established standard procedure for laser testing. By recording trajectory of archer aiming point for data analysis,this paper set up the archery technical analysis evaluation system.
10.In order to resolve the trajectory control problems of this sort of BHA, it is necessary to resolve the steadiness diagnosis, movement state diagnosis and parametric analysis of the BHA, the mathematical model of the dyn amic analysis, the dynamic model between bit and formation and trajectory foreca sting method .
