临近空间目标飞行器地基探测技术研究

临近空间领域的探测对未来战争将发挥无法估量的作用。提出了利用地面光学无源探测设备对临近空间的目标飞行器进行探测的设计方案。文中对临近空间目标的光谱特性做了细致分析,给出了系统应用多谱段进行探测的必要性。给出了探测系统的硬件架构。从光学系统的焦距和对比度两个方面详细分析了系统的设计指标。假设目标的直径为20 m,太阳高角为15°,当光学系统的焦距大于280 mm时,目标与背景之间的对比度为0.33。从理论上证明该系统方案是有效可行的。

Study of Ground-based Detection Technology of Target Aerocrafts in Near Space

Detecting the targets in near space will play a very important role in the future wars. A design scheme for detecting the target vehicles in near space by using a ground-based passive optical detection system is proposed. The spectral characteristics of the target vehicles in near space are analyzed in detail. The necessity of using multispectral means to detect the target vehicles is indicated for the system. The structure of the detection system is given. The design specifications of the detection system are analyzed in both the focal length of the optical system and the contrast. It is assumed that the diameter of a target is 20 m and the sun angle is 15°. When the optical system has its focal length of 280 mm, the contrast between the target and the background is 0.33. It shows theoretically that this system scheme is effective and feasible.