海面目标天基红外探测概率研究与分析
发布时间：2018-07-18 15:08
【摘要】：天基红外成像侦察有着常规空基、地基、海基军事侦察手段无法比拟的空间优势,业已成为世界上各大军事强国重点发展的一项重要的军事侦察技术。首先,从海面目标的天基红外探测条件出发,推导出极限探测条件下的阈值信噪比和目标等效条带数的数学表达式。然后,以此为基础得出海面目标天基红外探测的探测概率公式。最后,分析了噪声等效温差、探测器瞬时视场、卫星轨道高度、目标与背景的零视距的实际等效温差、目标临界尺度以及大气透射率对天基红外目标探测概率的影响。研究表明对于大温差、大尺度的海面目标,天基红外探测的探测概率相对较高,但在大气透射状况一般时,要通过天基红外观测平台探测小温差、小尺度海面目标较为困难。研究结果对天基红外探测器的研制与设计具有一定的借鉴意义。
[Abstract]:Space-based infrared imaging reconnaissance has an incomparable space advantage over conventional space-based, ground-based and sea-based military reconnaissance means, and has become an important military reconnaissance technology for the major military powers in the world. Firstly, the mathematical expressions of threshold signal-to-noise ratio (SNR) and target equivalent band number are derived from the space-based infrared detection conditions of sea surface targets. Then, the detection probability formula of space-based infrared detection of sea surface target is obtained. Finally, the effects of noise equivalent temperature difference, detector instantaneous field of view, satellite orbit altitude, zero horizon between target and background, critical scale of target and atmospheric transmittance on the detection probability of space-based infrared target are analyzed. The results show that the detection probability of space-based infrared detection is relatively high for large temperature difference and large scale sea surface targets, but when atmospheric transmission is normal, it is difficult to detect small temperature difference through space-based infrared observation platform. The results can be used for reference in the development and design of space-based infrared detectors.
【作者单位】： 中国人民解放军91336部队;海军工程大学兵器工程系;海军工程大学动力工程学院;
【基金】：国防预研项目(No.1010502020202)资助
【分类号】：TN215
本文编号：2132289
[Abstract]:Space-based infrared imaging reconnaissance has an incomparable space advantage over conventional space-based, ground-based and sea-based military reconnaissance means, and has become an important military reconnaissance technology for the major military powers in the world. Firstly, the mathematical expressions of threshold signal-to-noise ratio (SNR) and target equivalent band number are derived from the space-based infrared detection conditions of sea surface targets. Then, the detection probability formula of space-based infrared detection of sea surface target is obtained. Finally, the effects of noise equivalent temperature difference, detector instantaneous field of view, satellite orbit altitude, zero horizon between target and background, critical scale of target and atmospheric transmittance on the detection probability of space-based infrared target are analyzed. The results show that the detection probability of space-based infrared detection is relatively high for large temperature difference and large scale sea surface targets, but when atmospheric transmission is normal, it is difficult to detect small temperature difference through space-based infrared observation platform. The results can be used for reference in the development and design of space-based infrared detectors.
【作者单位】： 中国人民解放军91336部队;海军工程大学兵器工程系;海军工程大学动力工程学院;
【基金】：国防预研项目(No.1010502020202)资助
【分类号】：TN215
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