| 1. | Enlarging the pattern by fruanhofer diffraction of spherical wave
利用球面波夫琅禾费衍射放大衍射图样 |
| 2. | The main contents are : ( 1 ) the recording and numerical reconstruction of lensless fourier hologram are analyzed by spherical wave theory
主要内容包括： ( 1 )用球面波理论分析了无透镜傅里叶变换全息图的记录和再现过程。 |
| 3. | D ) . puts forward stress wave research method when the linear charge blasting . it regarded column stress wave as cylinder stress wave , end stress wave as spherical wave
D )提出了将条形药包柱部应力波当作柱面波、端部应力波当作球面波处理的应力波研究方法。 |
| 4. | The impsar wavefront reconstruction theory takes into account of the propagation property of spherical wave . therefore , it can be used to interpret both the near field and far field impsar applications
当成像系统用于近场应用时，投影重建理论需要加以改进以加入电磁传播球面波波前的影响。 |
| 5. | Based on the fresnel diffraction integral , the analytical expression for the field distribution of converging spherical waves passing through an annular aperture is derived and some special cases are discussed
摘要基于菲涅耳衍射积分公式，推导出了会聚球面波通过环形光阑后场分布的解析公式，并讨论了一些特殊情况。 |
| 6. | Reference lens , which can produce spherical wave front whose optical quality is better than / 20 by peak - valley value in wavelength , is an important part of " 95 " defense system project in measurement and testing
标准球面透镜能产生峰谷值优于/ 20的球面波，是国防系统“九五”计量测试项目重要的研究内容之一。 |
| 7. | A new algorithm is then derived , in which the factor of spherical wave front is removed explicitly . thus the propagation of a focused beam could be evaluated indirectly from propagation of an unfocused beam
文中对此作了分析，进而提出了一种新算法，将球面波因子提出，然后将会聚光束的传输过程转化为非会聚光束的传输过程，从而间接求得了聚焦光束的光场分布。 |
| 8. | ( 5 ) digital holograms of static particles and particle field ( multi - layer ) are recorded in the experiment . and the reconstructed particle images are gained using the envelope method with two different reconstructed waves - plane wave and spherical wave , respectively
( 5 )从实验上拍摄了单层静态粒子靶和多层静态粒子靶的数字全息图，并分别用平面波和球面波实现了该模拟粒子场的数值再现，得到了清晰的粒子像。 |
| 9. | ( 1 ) basic mathematical model for recording and numerical reconstruction of digital hologram is elaborated . the core of digital holography is the algorithm of numerical reconstruction . two different approaches for numerical reconstruction of digitally sampled holograms are investigated , namely the fresnel transform algorithm and the frequency domain algorithm , which are deduced from the diffraction theory of spherical wave and plane wave respectively
( 1 )从理论上详细阐述了数字全息图记录与再现的基本原理，建立了数字全息图记录和数值再现的数学模型，根据光波衍射的球面波和平面波理论，给出两种不同的数值再现思路，即频域再现法和菲涅耳变换法。 |
| 10. | The point blast induced spherical wave is the especial instance of the ellipsoid shock wave . at last , the experimental data in alcohol are in good agreement with the calculated results of the model by analysis of the data of the laser pulse induced the laser plasma shock front by acoustics means
最后，设计应用声学方法对酒精中产生的激光等离子体冲击波波前传播过程进行测试，对两个不同方向上激光等离子体冲击波波前测试数据的分析表明，旋转椭球面的冲击波模型与实验测量结果相吻合。 |
