A method to measure the beat frequency of weak light;
一种测量弱光拍频的方法
The calculation method of critical operation speed is put forward based on the theories of vibration and composition of beat frequency;the principles of determining the allowable operation speed are concluded.
应用振动和拍频合成理论,提出了计算临界车速的方法,并给出了确定许用车速的原则,供设计人员参考。
In order to find the optimal operating point,expressions for FMDLG beat frequency are analyzed.
当四频差动激光陀螺工作于增益曲线上左、右旋陀螺比例因子相等位置时,误差因素在拍频的差动中得到较好的抵消,因而具有较优的性能。
Stability Analysis of Beat Frequency in Double-Longitudinal-Mode He-Ne Laser
双纵模He-Ne激光器的拍频稳定度分析
Experiment on Beat Frequency between Two Independent Different Types of Laser
两种不同类型独立激光器的拍频实验
Research on Hybrid Single Longitudinal Mode TEA CO_2 Laser and Its Heterodyne Beat
混合式单纵模TEA CO_2激光及其拍频的研究
A Measurement Method for a CW Laser Modulation Spectrum Based on Optical Beat Frequency
一种基于光拍频的连续激光 调制光谱测量方法
Impact Analysis of Beat Noise on Coherent OCDMA System
相干光码分多址系统中拍频噪声的影响
In order to supply laser-light-source which owns the trait of high stabilization of frequency beat-wave interferomete mechanism of thermal frequency stabilizing of double-longitudinal mode was studied.
为了满足激光拍频干涉仪所需要的高的频率稳定性的激光光源,研究了双纵模热稳频的机理。
With ordinary photocells, one can pick up the frequency between two different lasers.
用普通光电池，人们就能够探测到两个不同的激光之间的拍频。
The three-wave interaction in a laser beat-wave accelerator are studied.
本文研究了激光拍频波加速器中的三波相互作用过程。
Members often clapped their hands or shouted out loud.
教友们或是频频拍手，或是大声叫喊。
To cause beating by superposing waves of different frequencies.
振动叠加不同频率的波以产生拍差，拍音
Performance Comparison of Frequency Standard Measurement Systems Based on Beat-Frequency Method
基于差拍的频标比对系统的性能比较
Is spectrum truly scarce and does auctioning it benefit consumers?
频谱真的缺乏吗？拍卖真的有利于消费者吗？
Snapping Overspeed System in Freeways Based on Video-detect Technology;
基于视频检测技术的高速公路超速抓拍系统
Study on Violation Vehicle Automated Snap System Based on Video;
基于视频的违章车辆自动抓拍系统的研究
Design of Wireless Image Transmission System for Helicopter Model
直升机模型航拍视频采集传输系统的研制
Dynamic spectrum allocation based on continuous double auctions in cognitive radio networks
认知网络中基于连续双向拍卖的动态频谱分配
Dynamic spectrum allocation in cognitive radio networks based on multi-auctioneer progressive auction
基于步进拍卖的认知无线网络动态频谱分配
Parametric Six-Wave Mixing and Quantum Beatings in Rb
铷原子中参量六波混频和量子拍的研究(英文)