反临近空间高超声速飞行器中末交接视角研究

Visual angle research for midcourse and terminal guidance hand-over of near space hypersonic vehicles

针对临近空间高超声速飞行器的拦截问题,研究了拦截弹中末制导交接班时的导引头视角优化问题。首先,分析了临近空间大气环境及其对红外传输的影响,表明该空域适合红外探测器工作;然后,针对临近空间高超声速目标的红外特性设计了红外导引头方案;最后,将目标视为点源目标,建立了探测距离计算模型和大气透过率工程计算模型,研究了导引头探测距离与探测视角的关系。研究结果表明:针对临近空间高超声速目标,自上而下的探测方式有利于增加导引头探测距离;拦截弹中制导段弹道宜采用高抛再入式弹道。

Seeker visual angle optimization during midcourse and terminal guidance hand-over was researched to intercept hypersonic vehicles. Firstly, the characteristics of atmospheric in the near space and its effect on the transmission of infrared radiation was researched. The results indicate that infrared detection is better to be used in this area. Secondly, a infrared seeker was designed according to the vehicle＇ s infrared characteristics. Finally, model of the detection range and the atmospheric transmission were given on the assumption that the target was an infrared point source, the relationship between the seeker detection angle and operating range was researched, showing that detection from above to below can improve the seeker＇ s detection range, the parabola-trajectory is appropriate for the missile＇ s midcourse segment to intercept hypersonic vehicles.