分析了线列推扫成像中,积分时间对采样孔径函数的影响。
The effect of integral time on aperture function in linear detector push-broom imaging system is analyzed.
星星(点光源)的亮度只是望远镜孔径的函数-孔径越大,图像越亮。
The brightness of stars (point sources) is only a function of telescope aperture-the larger the aperture, the brighter the images.
此算法基于极大似然算法将等距线阵均分为三个子孔径,从而简化了估计函数,也使计算量大大减少。
Base on the maximum likelihood algorithm, the algorithm divides an array into three subaperture and predigests the estimate function and reduces the compute quantity.
基于标量衍射理论,考虑衍射效应的条件下,从理论上推导了编码孔径点扩散函数的公式,并对环形编码孔径进行了详细的讨论。
Considering diffraction effect based on scalar theory, we deduced a formula for point spread function of the coded aperture and discussed the ring coded aperture in detail.
给出该孔径的光瞳函数以及三种不同型的结构形式,并导出它的调制传递函数的解析表达式。
The pupil function, analytical formulas of its corresponding modulation transfer function (MTF) and three configuration models have been given.
对二种孔径的计算结果作了分析和比较。并扼要讨论了考虑底片传递函数时的相机分辩率。
The results are analysed and compared, and taking transfer function into consideration, the revolution of the camera which contains film is briefly discussed.
基于孔径接收的对数振幅时间相关函数,结合星地激光下行链路的实际情况,推导了适用于星地下行孔径接收的闪烁频谱表达式。
Based on the temporal covariance of logarithmic amplitude, analytical expression was obtained for aperture receiving power spectrum of atmospheric scintillation of satellite-to-ground downlink.
进一步根据角谱传递函数计算了不同样品的光子扫描隧道显微镜理论图像,分析了探针与样品的间距、探针孔径大小、照明光入射角等对光子扫描隧道显微镜成像的影响。
Based on ASTF the influence of such parameters as tip-sample distance, tip aperture diameter and the incident Angle of illuminating laser beam on PSTM image has been discussed.
分析了比表面积、平均孔径、孔隙率等孔隙特性参数对扩散的影响,获得了分形多孔介质中气体扩散系数与平均孔径的函数关系。
The effect of pore characteristics on gas diffusion was analyzed. The relationships between the specific area, average pore diameter and porosity with the diffusion coefficient were obtained.
分析了比表面积、平均孔径、孔隙率等孔隙特性参数对扩散的影响,获得了分形多孔介质中气体扩散系数与平均孔径的函数关系。
The effect of pore characteristics on gas diffusion was analyzed. The relationships between the specific area, average pore diameter and porosity with the diffusion coefficient were obtained.
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