Intensity Correlation Techniques For Passive Optical Device Detection
Intensity Correlation Techniques For Passive Optical Device Detection
复制标题
用于无源光学器件检测的强度相关技术
DOI：
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发表时间：
1982
期刊：
影响因子：
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通讯作者：
S. Gustafson
中科院分区：
文献类型：
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作者：
S. Gustafson
考虑使用强度相关技术来检测被动光学设备。假定这些设备由于离检测系统较大的距离而具有小的角度尺寸，并且假定设备的最终光圈似乎是固定的，而周围环境似乎波动。这种表观运动的这种差异构成了强度相关检测的基础，该检测具有潜在的优势，因为它对相应的相位变化不敏感，例如由于检测系统的运动或大气湍流。讨论了强度相关检测与光学物理中某些区域之间的某些关系，包括激光雷达（LIDAR），强度相关干涉法和由于移动的弥散对象引起的斑点现象。开发了一个简单的强度相关检测模型，并与固定相干背景照明对相干照明的移动粗糙表面的影响有关。对于某些基本条件，得出并讨论了此自相关函数的表达式。
The use of intensity correlation techniques for the detection of passive optical devices is considered. It is assumed that the devices have small angular sizes due to their large distances from the detection system, and it is assumed that the final optical apertures of the devices appear to be stationary, whereas their surroundings appear to fluctuate. This difference in apparent motion forms the basis for intensity correlation detection, which has potential advantages because of its insensitivity to phase variations due, for example, to motion of the detection system or to atmospheric turbulence. Some relationships between intensity correlation detection and certain areas in optical physics, including laser radar (lidar), intensity correlation interferometry, and speckle phenomena due to moving diffuse objects are discussed. A simple model of intensity correlation detection is developed and related to the influence of stationary coherent background illumination on the autocorrelation function in time of a coherently illuminated moving rough surface. An expression for this autocorrelation function is derived and discussed for certain elementary conditions.