| 1. | Using it did the mixed inversion of wave impedances
用该程序进行波阻抗的混合反演。 |
| 2. | Wave - body interaction computation by a three - dimensional unsteady eulerian finite element method
用三维非定常欧拉有限元方法进行波体干扰计算 |
| 3. | Aimed at the landform and the shortage of water resource in hilly mountain areas , the field experiments of surge furrow irrigation and continuous irrigation were carried out
本文针对丘陵山区地形和水资源短缺等特点，采用正交试验设计进行波涌灌和连续灌田间试验。 |
| 4. | Second , since there are lots of redundant items in the fourth - order cumulant matrices , we introduce an algorithm of direction - of - arrival estimation based on the maximal set of nonredundant cumulant ( msnc )
其次，由于利用四阶累积量进行波达方向估计时计算量很大，文中提出了一种基于最大非冗余累量集合的方向估计方法。 |
| 5. | 1 . assuming prismatic cross - section in the direction of the track , when the difference of the characteristic of soil along track is slight , and then processing expansion in wavenumbers along this direction
为此，本文主要研究了以下几个方面： 1 、在考虑轨道方向上地基土性质差别不大的前提下，取列车移动方向为相同的截面，并沿这个方向进行波数展开。 |
| 6. | A novel class of analysis tool in signal processing - higher - order statistics ( hos ) is presented in this thesis . we then use it along with the well - developed algorithms such as esprit and music in direction - of - arrival ( doa ) estimation
本文介绍了信号处理中的一种新的分析工具? ?高阶统计量，并与传统的子宽间旋转不变技术和多重信号分类技术相结合进行波达方向估计。 |
| 7. | The numerical efficiency of this method allows the advanced sophisticated synthesis procedures with the advanced optimization algorithms and the computer aided design of the waveguide circuits even the other microwave or millimeter - wave circuits performed on personal computer
模式分析程序的快速和高效，使得它可以配合现代各种优化算法进行波导电路甚至其它微波毫米波电路的计算机辅助设计。 |
| 8. | And then , the irrigation performance including irrigation efficiency , application efficiency and distribution uniformity were evaluated by using infiltration parameters and soil parameters . the results indicate surge furrow irrigation is suitable to hilly mountain areas
利用入渗参数以及田间基本参数，对灌水质量：储水效率e _ n 、灌水效率e _ a和灌水均匀度e _ d进行了评价，评价结果表明在丘陵山区适宜进行波涌灌溉。 |
| 9. | First , the thesis introduces the definitions and the attributes of the higher - order statistics . it is insensitive to additive gaussian noise ( white or colored ) , which is what we base on to doa problems . then two doa estimation algorithms based on higher - order statistics are presented , one is that forming cumulant matrix pencil used in esprit to estimate doa problems , the other is spectrum estimation method for doa estimation based on the eigenstructure analysis of the fourth - order cumulant , and comparing the effects of the estimation to conventional covariance - based doa algorithms "
论文首先对高阶统计量的定义和性质作了介绍，特别指出了高阶统计量对加性高斯噪声(白色或有色)不敏感，这是我们利用它进行波达方向估计的理论依据，然后文中提出了两种基于高阶统计量的波达方向估计方法，一种是利用子空间旋转不变技术构造四阶累积量矩阵进行估计的方法，另一种是基于四阶累积量阵特征分解的空间谱估计测向方法，并将它们的估计效果与传统协方差方法的效果进行比较。 |
| 10. | An interferometric lithographic experimental system with maskless and multi - beam exposure is built . an experimental system with wavefront divided by a trapezoidal prism and with selectable diaphragms for kinds of multi - beam , multiple - exposure interferometric lithography research is proposed . the experimental study on interferometric lithography is carried out
建立了无掩模多光束多曝光干涉光刻实验系统，提出了一种采用梯形棱镜进行波前分割和利用可选择光阑进行多种多光束多曝光干涉光刻研究的实验系统，进行了干涉光刻实验研究，对模拟和实验结果进行了分析。 |
