伴飞式激光对抗卫星光电探测器干扰效能研究

Research on jamming efficiency of accompanying laser against photoelectric detector in satellite

为了研究天基平台激光对抗中高轨道卫星的伴飞干扰能力,建立了天基激光干扰的理论模型。首先分析了伴飞式激光干扰的特点,并分析了激光发射系统、跟踪瞄准精度、接收光学系统及探测器自身的特性,在此基础上建立了激光接收功率密度的数学模型,以最大干扰距离作为评估标准分析干扰效能。由分析可知激光干扰效能与激光功率、发散角、激光波长、干扰阈值等有关。最后以天基红外系统的扫描型探测器为例,定量分析了天基致盲干扰的干扰效能。

In order to study accompanying jamming ability of space-based laser against high orbit satellite,the theoretical model of space-based laser interference was established. Firstly,the characteristics of accompanying laser interference were analyzed,and the characteristics of laser transmition system,tracking and pointing accuracy,receiving optical system and the detector itself were analyzed respectively. Based on the analysis,the mathematical model of the received laser power density was established,and the maximum interference distance was used to evaluate the interference efficiency. The analysis shows that the efficiency of laser jamming is related to the laser power,divergence angle,laser wavelength,interference threshold and so on. Finally,taking the scanning detector of SBIRS as an example,the interference efficiency of space-based laser was quantitatively analyzed.