轴向运动目标的热光高阶鬼成像研究

发布时间：2018-06-16 13:36

本文选题：鬼成像 + 高阶关联　；参考：《光电子·激光》2017年05期

【摘要】：为了探讨光场的高阶关联对于轴向运动目标鬼成像成像质量的影响,将热光高阶鬼成像相关理论应用于轴向运动目标鬼成像的研究中。首先,建立了理想热光高阶强度涨落的轴向运动目标鬼成像模型,给出轴向运动目标高阶鬼成像的高阶关联函数;接着,设置不同仿真参数对建立的数学模型进行了数值模拟,同时给出了相关仿真图像;最后,采用峰值信噪比(PSNR)质量评价方法比较仿真图像的成像质量,并对仿真结果进行了分析。结果表明,对于轴向运动目标,随着参考光束的阶数增加,光场的高阶关联将会极大的增加背景涨落的噪声,导致图像重建质量急剧变差;而信号光束的阶数增加对成像质量影响较小,但是成像质量会随着信号光束的增加而增加,最低阶的鬼成像得到的鬼像质量最好。
[Abstract]:In order to investigate the effect of high order correlation of light field on the imaging quality of moving target, the theory of thermo-optical high order ghost imaging is applied to the study of ghost imaging of axially moving target. Firstly, the ghost imaging model of the axial moving target is established, and the high-order correlation function of the high-order ghost imaging of the axial moving target is given, and the mathematical model is numerically simulated by setting different simulation parameters. Finally, the PSNR quality evaluation method is used to compare the imaging quality of the simulated images, and the simulation results are analyzed. The results show that, with the increase of the order of the reference beam, the higher order correlation of the light field will greatly increase the noise of the background fluctuation, resulting in a sharp deterioration of the image reconstruction quality. The increase of the order of the signal beam has little effect on the imaging quality, but the imaging quality will increase with the increase of the signal beam, and the lowest order ghost image quality is the best.
【作者单位】：合肥电子工程学院脉冲功率技术国家重点实验室;
【基金】：国家自然科学基金(61307025) 安徽省自然科学基金(1308085MF114)资助项目
【分类号】：O431.2

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