| 1. | A phase matching algorithm for iris recognition
一种用于虹膜识别的相位匹配算法 |
| 2. | Novel vision system for large field inspection based on phase matching
基于相位匹配的大视场视觉检测系统 |
| 3. | And the theory of qpm was explained on the base of coupling wave equation
并从耦合波方程出发,说明了准相位匹配技术的原理。 |
| 4. | Look back the history of laser frequency conversion and present the present situation and the trend of quasi - phasematched ( qpm ) . 2
1 、回顾了激光变频的历史，着重介绍了准相位匹配及其材料的研究现状及发展方向。 |
| 5. | Therefore , the phase matching condition in the < 110 > - oriented zn1 - xcdxte crystals is the key factor which affects the generation efficiency of thz waves
因此，晶体的相位匹配性能是影响其作为thz辐射源的主要因素。 |
| 6. | At present , we have achieved frequency conversion in pulse - wave and continue - wave as well as quasi - continue - wave by using quasi - phase - matched method
目前，利用准相位匹配技术已实现了脉冲、准连续和连续光的频率转换。 |
| 7. | Utilizing quasi - phasematched ( qpm ) technique to achieve a given useful laser frequency conversion is a practical and challenging topic
利用准相位匹配( qpm )技术在光学超晶格中实现特定的可实用化的激光频率变换，在目前是一个富有实际意义和挑战性的课题。 |
| 8. | In this paper , various frequency conversion by qpm technique will be studied in theoretically and experimentally and the fabrication methods of osls will be presented : 1
本文从理论和实验上研究了利用准相位匹配技术的各种变频效应及光学超晶格的制备方法。 |
| 9. | Through the detailed analysis of the aaf , the defection of using chirp - fourier transform in guidance radar signal processing is pointed out
通过对加速度模糊函数的形态分析也指明了针对线性调频信号的二次相位匹配处理( chirp - fourier变换)在应用到制导雷达信号处理中所存在的缺陷。 |
| 10. | The effect of pump beam ' s walk - off and the group - velocity - mismatch in bbo crystal is discussed , the group - velocity - mismatch can be compensated by non - collinear phase - match when the angle between signal and idler beams equals to 14 . 4
当下转换光与抽运光夹角达到13 . 4度时，非共线相位匹配基本可以消除晶体中群速失配对下转换过程的影响。 |
