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首页> 外文会议>Conference on Optics in Atmospheric Propagation and Adaptive Systems Ⅳ Sep 18-20, 2001, Toulouse, France >Analysis of Satellite Laser Optical Cross Sections from the Active Imaging Testbed
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Analysis of Satellite Laser Optical Cross Sections from the Active Imaging Testbed

机译：有源成像试验台对卫星激光光学截面的分析

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摘要

In a previous paper the first two authors described two techniques for estimating the optical cross section (OCS) of remotely illuminated objects. This report uses OCS estimates from the Active Imaging Testbed, fielded in 1999 by the Air Force Research Laboratory's Directed Energy Directorate's Surveillance Technologies Branch to analyze the frequency and magnitude of glints. Glints are the transient, non-Lambertian returns from such features as a flat, specular surface or a natural corner cube. The OCS of a satellite is the least well understood element of the range equation used to estimate system performance. Glints caused by natural corner cubes often exceed the radiometric estimate by orders of magnitudes. However, glints also occur that are on the order of five to ten times the expected returns, due perhaps to the transient alignment of a flat surface. These phenomena can provide increased signal for tracking or imaging applications, but can also act as a noise source. Glints may be identified and their statistics analyzed using the OCS estimation technique.
机译：在前一篇论文中，前两位作者描述了两种估算远距离照明物体的光学截面（OCS）的技术。本报告使用了主动成像试验台的OCS估计值，该成像台是由空军研究实验室的直接能源局监视技术分部于1999年投入使用的，用于分析闪烁的频率和幅度。闪烁是指从平坦，镜面曲面或自然角corner角等要素获得的非朗伯瞬态返回。卫星的OCS是用于估计系统性能的距离方程式中了解最少的元素。自然角corner造成的闪烁通常会超出放射线估计值几个数量级。但是，由于平面的瞬态对准，也会出现闪烁，闪烁的幅度约为预期回报的五到十倍。这些现象可以为跟踪或成像应用提供增加的信号，但也可以充当噪声源。可以使用OCS估计技术识别闪光并分析其统计数据。

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