研究了鬼成像系统的点扩散函数(PSF),以轴向运动目标的鬼成像系统为例理论推导出其点扩散函数,并进行了数值模拟和计算机仿真实验.结果表明:目标在信号光路轴向的运动会导致成像质量的下降,速度越大成像质量越差,应用点扩散函数方法分析鬼成像系统的成像质量可以在不成像的情况下预先判断成像效果,相对于传统的质量评价方式有很大优势.
The point spread function(PSF) of ghost imaging system is investigated.Taking the ghost imaging system of an axial moving target as an example,it's PSF is derived in theory,and the numerical simulation and computer simulation experiment are carried out.Results show that the axial movement of target in signal light path leads to the decrease of imaging quality,and the greater the speed is,the worse the imaging quality will be.The imaging effect can be prejudeged by using the imaging quality of ghost imaging system analyzed with PSF method,which has a great advantage compared with the traditional quality evaluation method.
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