红外面阵旋转搜索系统作用距离方程

Distance equation of infrared focal plane array rotation search system

红外面阵旋转搜索系统一直倍受争议,文中对此进行了讨论。研究了红外面阵旋转搜索系统存在的多像元探测相关性,对多像元相关性进行相关像素灰度积累可以有效提高目标探测信噪比,并最终提升探测作用距离。基于多像元相关性,文中推导了面阵旋转搜索系统考虑多像元相关性的点源探测作用距离方程,以及考虑数据关联等作用的有效作用距离方程。对面阵旋转的作用距离方程、有效作用距离方程进行了仿真,同时对面阵旋转与静止时的作用距离、面阵旋转搜索系统和线阵旋转搜索系统的性能进行了比较。最终通过仿真数据证明了面阵旋转搜索系统的实用价值。

The infrared focal plane array rotation search system（IFPARSS） is controversial and denied by the mainstream view. In this paper, the multiple pixels＇ correlation （MPC） of IFPARSS in space domain and time doamin was studied. MPC was used to increase the SNR of the target effectively after the process of pixel＇s gray accumulation, and thus improve the target detecting distance. Moreover, according the MPC, the IFPARSS point target detecting distance equation was deduced. And through this equation, the superiorty of IFPARSS was proven. Then the simulations of distance equation were carried out. And the focal plane array search system with rotation and static state by distance range, the focal plane array search system and the linear array search system by the distance equation were compared. The simulation results show that the IFPARSS is useful and the view that denies the IFPARSS is wrong.