Distribution of Angle of Obliquity of Laser -Guided Projectiles with Respect to the Target at Impact.

摘要

Impact obliquity is defined as the angle between the longitudinal axis of the projectile and the surface normal (or perpendicular) at the instant when the projectile first contacts a surface element of the target. In this note the discussion is principally concerned with impact obliquity versus a T54/55 tank target and the factors which affect its statistical distribution. The primary purpose of this study is to compute an overall or global probability distribution of impact obliquity for laser guided projectiles in a typical scenario. Secondarily one wishes to determine the sensitivity of several parameters on the distribution of obliquities. Important by-products of the study methodology are estimates of guidance accuracy, flight speed at impact, and angle of attack at impact. The computer program for processing impact data is included. (Author)