| 1. | The optimal approximation for the pattern formed with fresnel zone plate antenna
菲涅尔区板天线赋形波束的最优逼近 |
| 2. | Design of fresnel lens with big grooves and equal thickness based on the software zemax
软件的大齿距等厚菲涅尔透镜的设计 |
| 3. | In this paper , the authors deal with the basic principle for nondestructive test of the pile inclination
摘要阐述了基桩倾斜无损检测基本原理惠更斯菲涅尔原理。 |
| 4. | With huygens - fresnel belt , the authors have analyzed the horizontal resolution ratio , and pointed out the technological crux of such a method
用惠更斯菲涅尔带分析了水平分辨率，最后说明该种方法的技术关键。 |
| 5. | After recording digital hologram with charge - coupled device ( ccd ) , we can reconstruct the real image of the object from it by means of numerical method
数字重现技术使用ccd代替干版直接记录下菲涅尔全息图，通过数字计算的方法再现物体的像。 |
| 6. | We point out the main influence factor of seismic distinguish in landscape orientation is fresnel zone . we can solve this problem through the high quality wavelet equation migration
指出了对于横向分辨率的主要影响因素为菲涅尔带的大小，可以通过高质量的波动方程偏移解决此问题。 |
| 7. | The diffraction formula and statistical law of optical fields are used to get the cross - correlation function of intensities of laser speckles of the moved diffuse object
该方法利用光传播的菲涅尔衍射公式和光场的统计规律，给出散斑场光强在散射体位移前后的高斯光束相关函数的表达式。 |
| 8. | And its main advantage is that it can realize high resolution power of space to be used in the near area , through the application of small - scale transducer and lower performance frequency
其优点是可以应用小尺度换能器及比较低的工作频率，来获得方位的高分辨率，可以在近场区(菲涅尔区)工作。 |
| 9. | After analyzing the experiment , the author completes designing the experiment in which the fresnel hologram is recorded with ccd . how to realize the technology with program is the focus of the research
作者针对全息图记录中低的ccd分辨率，合理地分析了实验条件，完成了应用ccd直接记录菲涅尔全息图的实验设计。 |
| 10. | It is shown that the fgb and sgb passing through a paraxial abcd system demonstrate similar irradiance profile at the positions of the equal generalized fresnel number . but the fgb and sgb passing through a paraxial abcd optical system having spherically aberrated lens do not demonstrate similar irradiance profile at the positions of the equal generalized fresnel number . the nearly same irradiance profile at the positions of the equal generalized fresnel number can be achieved if the fgb and sgb have the same a / 2 - factor and waist width
在此基础上首次对相同m ~ 2因子、四川大学博士学位论文不同束腰宽度的平顶高斯光束和超高斯光束作了比较，发现具有棋同矿因子、不同束腰宽度的平顶高斯光束和超高斯光束在近轴abcd光学系统中传输时，在菲涅尔数相同的两个面上具有相侧的光强分布 |
