您要查找的是不是：
- optical frequency shift 光频移
- The scheme of measuring Brillouin frequency shift in fiber sensor based on edge optical filter is proposed. 提出了采用边缘光滤波器来测量光纤传感中布里渊频域的方案。
- The earth's rotation and its motion around the sun add an appreciable frequency shift. 地球自转与地球绕日公转产生附加的频移。
- According to the laser gain change is linear related to the frequency shift, the Doppler frequency is extracted by the signal processing. 根据激光的增益变化和频率变化成线性关系，可以对信号进行处理求出多普勒频移。
- The Brillouin frequency shift can be precisely measured by changing the local frequency and adopting narrow filter. 通过改变本地电信号的频率对信号进行扫描和窄带滤波，从而实现了布里渊频移的精确测量。
- Passively mode-locked fiber laser and the application in optical frequency metrology were introduced. 摘要本文介绍被动锁模光纤激光的架构，以及在光频量测的应用。
- The results show,the light frequency shift can be effectively r educed in the sharp angle laser light pumping scheme. 结果表明斜光抽运方案可以有效降低铯原子束频标中的光频移。
- This paper describes the design and the test results of Gaussian frequency shift keying for bluetooth. 介绍了一种用于蓝牙芯片的高斯滤波移频键控的设计和测试结果。
- Pilot beacon devices are available in the frequency shift and demodulation modes. 飞行员烟火装置在频度变化和解调模态中是可得的。
- Two additional features of the pulses emitted by mode-locked lasers are keys to the development of optical frequency combs. 锁模雷射所放出的脉冲另有两个特徵，成为发展光频梳的关键。
- Objective To discuss the effect of temperature on the frequency shift of piezoelectric quartz crystal biosensor. 目的探讨温度因素对压电石英晶体传感器检测频率变化的影响。
- Jun Ye, Steven Cundiff and John Hall bring different backgrounds to their collaboration on developing and applying femtosecond optical frequency combs. 叶军、康帝夫以及霍尔各有不同的背景，但是一起合作发展及应用飞秒光频梳。
- The Continuous Phase Frequency Shift Keying(CPFSK) signaling scheme has been widely used in mobile applications. 连续相位频移键控(CPFSK)信号广泛应用于便携式移动通信系统。
- Steven Cundiff, Jun Ye and John Hall bring different backgrounds to their collaboration on developing and applying femtosecond optical frequency combs. 康帝夫、叶军以及霍尔各有不同的背景，但是一起合作发展及应用飞秒光频梳。
- John Hall, Steven Cundiff and Jun Ye bring different backgrounds to their collaboration on developing and applying femtosecond optical frequency combs. 霍尔、康帝夫以及叶军各有不同的背景，但是一起合作发展及应用飞秒光频梳。
- Signal demodulation of automatic block with audio frequency shift modulated track circuits was implemented with phase-locked loop( PLL) technique and a singe chip microcomputer. 利用锁相环(LL)窄带跟踪特性;与单片机结合;实现自动闭塞系统移频信号解调.
- This is because that frequency shift can also be found in the wind vortex over the Arctic Ocean, U-wind in Beaufort Sea, V-wind in East Siberian Sea and the PDO index. 因此，除热力因素外，动力因素引起的海冰的平流与该变频现象也存在一定的联系。
- The microcontroller then sets the frequency driving AOM to let the shifted optical frequency to jump alternatively to either side of the desired saturated absorption peak. 单片机控制AOM在吸收峰左右跳频得到鉴频信号，经数字PID计算反馈控制激光频率，实现了无调制稳频。
- The raindrops approach speed is determined by the frequency shift, and provides a good estimation of the winds, which carry the raindrops. 透过这个频率转变,可导出雨点移近雷达的速度,从而替乘载这些雨点的风力提供了很好的估算。
- The optical temporal and the optical frequency holograph are introduced in this paper, emphasis on the principle of the optical frequency holograph, and its application. 介绍了光学频域全息和时域全息的形成原理,并对光学频域全息在光纤通信及图像传输中的应用作了简要介绍。
