论文部分内容阅读
在本文中,首先对红外成象系统探测小目标的可能性进行了讨论,并针对小目标的情况,对红外成象系统作用距离方程作了修正。此外,概述了几种可利用的小目标探测技术,经过分析认为,在现有的技术水平下,光机扫描类红外成象系统是当今探测小目标的重要技术途径。鉴于红外成象系统探测器敏感面较大而限制了其分辨率,因此,根据探测元点扩展函数的特性,提出了一种利用其点扩展函数来提高系统空间分辨率的技术设想。通过简单的模拟实验,证实了利用点扩展函数特性的有关问题及设想。
In this paper, the possibility of detecting small targets by infrared imaging system is discussed first, and the range equation of infrared imaging system is modified for small targets. In addition, several available small target detection techniques are summarized. After analysis, it is considered that the light scanning infrared imaging system is an important technical approach to detect small targets in the current state of the art. In view of the large sensitive area of the infrared imaging system detector, the resolution is limited. Therefore, based on the characteristics of the detection point expansion function, a technique assumption of using its point expansion function to improve the spatial resolution of the system is proposed. Through simple simulation experiments, the problems and assumptions about the characteristics of point spread function are proved.