Performance analysis of gated SWIR imaging system for target against plume background

IF 0.8 4区 物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY
Jung Rim Nam, Yong San Shin, Eun Suk Yoon
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引用次数: 0

Abstract

In targets like airplanes, rockets, or missiles, there are both the target and the plume. When tracking the target through imaging optics, the plume can become background depending on the perspective of the optical system. When plumes are in the background, the target image may be obscured by the saturation of the plume signals. In this study, a range-gated short-wave infrared (SWIR) imaging system was considered for the acquisition and tracking of the target against the plume background. The target signal is the illumination laser light reflected from the target and the background signal is the self-radiation of the plume. We considered a method using the illumination laser energy and the detector integration time to increase the target signal and decrease the plume signal. We analyzed the system signal-to-noise ratio (SNR) as a function of the illumination laser energy and the detector integration time. As a result, we derived system design specifications satisfying the SNR greater than 2.5.

Abstract Image

Abstract Image

针对目标和羽流背景的门控 SWIR 成像系统性能分析
在飞机、火箭或导弹等目标中,既有目标,也有烟羽。通过成像光学系统跟踪目标时,根据光学系统的视角,烟羽可能成为背景。当烟羽处于背景中时,目标图像可能会被饱和的烟羽信号遮挡。在本研究中,考虑采用测距门控短波红外(SWIR)成像系统来获取和跟踪烟羽背景下的目标。目标信号是目标反射的照明激光,背景信号是羽流的自辐射。我们考虑了一种利用照明激光能量和探测器积分时间来增加目标信号和减少羽流信号的方法。我们分析了系统信噪比(SNR)与照明激光能量和探测器积分时间的函数关系。因此,我们得出了信噪比大于 2.5 的系统设计规格。
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来源期刊
Journal of the Korean Physical Society
Journal of the Korean Physical Society PHYSICS, MULTIDISCIPLINARY-
CiteScore
1.20
自引率
16.70%
发文量
276
审稿时长
5.5 months
期刊介绍: The Journal of the Korean Physical Society (JKPS) covers all fields of physics spanning from statistical physics and condensed matter physics to particle physics. The manuscript to be published in JKPS is required to hold the originality, significance, and recent completeness. The journal is composed of Full paper, Letters, and Brief sections. In addition, featured articles with outstanding results are selected by the Editorial board and introduced in the online version. For emphasis on aspect of international journal, several world-distinguished researchers join the Editorial board. High quality of papers may be express-published when it is recommended or requested.
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