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本文主要利用几何推理建立一个预测在助推段拦截弹道导弹的天基激光战斗站星群特性的分析模型。此模型能适用于一个基地的ICBM(洲际弹道导弹)威胁或散布在某区域的ICBM威胁。已知ICBM的分布、ICBM的弹体特性,亦即所需激光通量和打靶滞留时间,此模型即可预测出所需激光卫星数量,所需单台激光器的辐射强度及每台激光器的平均杀伤率。如果规定了激光波束宽度,根据所需的激光辐射强度就能计算出所需激光功率。在采用高频化学激光器时,假设已知主燃料对激光功率的效率比,即能估算出运输此化学燃料入轨所需的航天飞机货运次数。在上述这些计算中,未计入目标转换时间的影响,但能利用平均杀伤率的预测伍来确定目标转换时间的技术指标。为验证此模型的预测能力,研完了均匀分布和点分布的具有各种加固度和燃烧时间的ICBM。计算中假设同ICBM交战的激光卫星均匀分布在此星群相关球面的部分面积上。但是,此假设却不受模型局限性的限制。本文主要结论之一是:摧毁从某一点同时发射的全部助推器所需的卫星数量,可显著大于摧毁从某一区域发射的相同数量助推器所需的卫星数量。最后,讨论了激光星群规模随ICBM威胁数量特性变化的比例特性。
This paper mainly uses geometric reasoning to establish an analytical model for predicting the constellation of space-based laser combat stations that intercept ballistic missiles in the boost section. This model can be applied to a base of ICBM (Intercontinental Ballistic Missile) threats or spread to a region of ICBM threats. Knowing the distribution of the ICBM, the ICBM’s projectile properties, ie, the required laser flux and target hold time, this model predicts the number of required laser satellites, the radiant intensity required for a single laser and the average of each laser Killing rate. If the laser beam width is specified, the required laser power can be calculated based on the required laser radiation intensity. When using high-frequency chemical lasers, it is assumed that the efficiency ratio of the main fuel to the laser power is known to estimate the number of shuttle flights required to transport the chemical fuel to the orbit. In these calculations, the impact of the target conversion time is not accounted for, but the average target kill rate can be used to determine the technical target of the target conversion time. To verify the predictive power of this model, ICBMs with various degrees of reinforcement and burn time were developed with uniform distribution and point distribution. It is assumed in the calculation that the laser satellites that are fighting the ICBM are uniformly distributed over a part of the area of the spherical surface related to this constellation. However, this assumption is not limited by the limitations of the model. One of the main conclusions of this paper is that the number of satellites required to destroy all booster launches from one point at a time can be significantly greater than the number of satellites needed to destroy the same number of booster launches from a given area. Finally, the scaling characteristics of laser constellation size with the number of ICBM threats are discussed.