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- ionospheric defocusing 电离层散焦
- Optical limiting by using thermal self defocusing[J]. 引用该论文 司金海;刘树田;杨淼;杨昆;李淳飞.
- The Effects of Time-varying Ionospheric Channel on HF Timing. 电离层信道的时变特性对短波授时的影响。
- ionosphere defocusing 电离层散焦
- The recipe design,melting and ion exchange process for the defocusing and focusing GRIN fiber lens glasses is studied. 本文对发散型和聚焦型两种纤维透镜玻璃的配方设计、熔制以及离子交换工艺进行了研究。
- Photolithographic Fabrication Techniques by Using Defocusing Laser Direct Writing[J]. 引用该论文 李凤友;卢振武;谢永军;张殿文;裴苏;赵晶丽.
- As with ordinary light, laser range measurements to satellites are not troubled by ionospheric refraction. 用激光测人造卫星的距离和用普通光一样，不受电离层折射的干扰。
- Precise information on the ionospheric Total Electron Content (TEC) can be quickly provided by using GPS (Global Positioning System) . 全球定位系统(GPS)可以快速、准确地提供电离层总电子含量(TEC)信息。
- In this paper, the traditional computational method of ionospheric S4 index based on GPS signal is analyzed. 本文分析了GPS信号研究电离层闪烁的基本原理，讨论了电离层闪烁监测中S4指数的计算方法及其修正方法。
- Based on the ABCD matrix and Gaussian beam propagation theory, the Gaussian beam transforming formulas through a parabolic defocusing GRIN fiber lens are derived. 本文根据ABCD矩阵和高斯光束传播理论,导出高斯激光束经抛物型发散梯度折射率纤维透镜的变换公式。
- The phenomenon was apparently caused by a reaction between the exhaust gases and ionospheric oxygen ions. 此现象明显是由于废气和电离层的氧离子之间的相互作用产生的。
- Analyzed is the dependence of the defocusing quantity on the hologram size and the spatial frequency bandwidth of the object. 分析了全息图尺寸及其记录的空间频带宽度与离焦量的关系;
- Experimental results confirm that the modified method can achieve effective ionospheric clutter suppression. 实测数据处理结果表明，该方法叶电离层杂波具有很好的抑制效果。
- The experiments of measuring convergent beam wavefront with a quadratic grating are carried out.It is found that the defocusing aberration... 由于大功率激光束的不稳定性,其波前变化非常快,所以该方法的实时性非常适合于这种波前变化的测量。
- Ionospheric time delay is one of the largest error sources in C/A code GPS navigation and positioning. 电离层传播延迟是C/A码GPS导航定位的主要误差源之一。
- Simulation results show phase-diversity method can accurately retrieve the wavefront and defocusing of one wavelength is optimal. 模拟研究结果表明，相位差法可以较准确的恢复出波前相位，并且最优化的离焦波面差为一个波长。
- The flowchart and characteristic of the grid-based algorithm fur Ionospheric delay correction in WAAS are discussed. 摘要阐述了广域增强系统电离层延迟网格修正算法流程、思路及特点，希望能给相关研究者提供参考。
- Both the power control model and linewidth model of the proposed method are established with defocusing amount as the unique variable. 推导了稳定线宽后的光功率控制模型和线宽模型,模型中的变量仅为离焦量,降低了光功率控制的复杂性。
- The primary factors affected welding depth and width have been studied, for example: welding power、speed、defocusing parameter and flow parameter. 进行了厚钢板和汽车齿轮的激光焊接实验,实际测量了激光功率、焊接速度、离焦量、辅助气体等工艺参数对焊接质量的影响。
- The linear focusing effect and linear defocusing effect on the interaction between spatial solitons have been studied by numerical simulation. 结果表明,线形聚焦效应增强了空间孤子之间的相互作用;
