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1976年在研制某产品时,曾遇到发射距离的计算问题。此问题所考虑的是目标A在航后的情形。设已测得发射阵地O到A的距离a;并由速度v预测得提前点A_1,提前量b=vT,T为一给定的时间常量;AO和A_1A之间夹角为q,仪器已求得它的机械量,此时需计算的是O到A_1的距离S,以便判断S是否小于给定的最大发射距离Smax,从而确定兵器是否可以发射。由于兵器本身的限
In 1976 in the development of a product, had encountered the calculation of launch distance. This question takes into account the situation after the target A is behind the air. Assume that the distance a from the launch site O to A has been measured; and the advance point A_1 is predicted from the velocity v, the advancement amount b = vT, T is a given time constant; the angle between AO and A_1A is q, To find out its mechanical quantity, we need to calculate the distance S from O to A_1 in order to judge whether S is less than the given maximum transmitting distance Smax, so as to determine whether the weapon can be launched. Due to the limits of the weapon itself