光子学报, 2020, 49 (9): 0901002, 网络出版: 2020-12-26
反射式鬼成像在海洋湍流中的成像分析 下载: 662次
Imaging Analysis of Reflective Ghost Imaging in Oceanic Turbulence
量子光学 海洋光学 反射式鬼成像 海洋湍流 可见度 Quantum optics Ocean optics Reflective ghost imaging Oceanic turbulence Visibility
摘要
基于惠更斯-菲涅尔原理和鬼成像理论,研究了反射式无透镜鬼成像在Kolmogorov海洋湍流中目标成像问题,得到了成像脉冲响应函数和可见度理论表达式。结果表明随着目标随机反射角的增大,关联重构的图像质量将会失真退化.为进一步分析海洋湍流对目标图像质量的影响,数值模拟了不同探测距离、不同海洋湍流情况下鬼成像的可见度,得到了海洋湍流作用下的鬼成像目标探测规律.该研究对远距离自适应水下鬼成像大规模应用具有重要的理论指导意义.
Abstract
Based on the extended Huygens-Fresnel integral and the theory of ghost imaging, the reflective lensless ghost imaging through Kolmogorov oceanic turbulence is investigated. The theoretical expressions for the impulse response function and the visibility of reflective ghost imaging in oceanic turbulence are obtained. The results show that the quality of reflective ghost imaging could be maintained at a relatively small incident reflective angle, whereas the quality is degraded dramatically at a relatively long distance with a relatively big incident reflective angle. The visibility of reflective ghost imaging is analyzed under various turbulence conditions and over different propagation distances by numerical calculation. It is a guidance for the realization of adaptive underwater optical ghost imaging over different length scales under the effect of oceanic turbulence.
张钦伟, 曹连振, 刘霞, 杨阳, 赵加强, 逯怀新, 贺志波. 反射式鬼成像在海洋湍流中的成像分析[J]. 光子学报, 2020, 49(9): 0901002. Qin-wei ZHANG, Lian-zhen CAO, Xia LIU, Yang YANG, Jia-qiang ZHAO, Huai-xin LU, Zhi-bo HE. Imaging Analysis of Reflective Ghost Imaging in Oceanic Turbulence[J]. ACTA PHOTONICA SINICA, 2020, 49(9): 0901002.