在航空武器系统的有效性分析中,火控系统的精度分析是个极其重要的问题,而在讨论精度时原理误差是头等重要的。大家知道,一个用于对固定目标瞄准的十字线光学筒可以达到几分,几十秒甚至更高的精度。而出现在四十年代以后的半自动 G.G.S.瞄准具的机构误差总有好几十分。可是在对空中活动目标射击的情况下,后者显著优于前者,其原因是后者从原理上修正了目标运动和其它一些因 Accuracy analysis of fire control systems is an extremely important issue in the effectiveness analysis of aviation weapon systems, and principle errors are of paramount importance when discussing accuracy. As we all know, a cross-line optical tube aimed at a fixed target can reach a few minutes, tens of seconds or even higher accuracy. The mechanical errors of the semi-automatic G.G.S. sight that appeared after the 1940s were always quite a few scores. However, in the case of aerial target shooting, the latter is significantly better than the former, because the latter theoretically amends the target movement and other factors