Current development of optical pulse offset frequency locking techniques;
激光脉冲偏频锁定技术的发展
Frequency offset locking system for narrow pulse coherent laser radar;
窄脉冲相干激光雷达偏频锁定系统实验研究
Letting the beam doubly pass an acousto optic frequency shifting system and using the technique of saturated absorption spectra of cesium atoms we realized the frequency offset locking of a single longitudinal mode laser diode to the hyperfine transition of 6 2S 1/2 F=4→6 2P 3/2 F′=5 of cesium atoms.
对于单纵模半导体激光器（ＬＤ），应用往返两次通过一个声光频移系统的方法，结合铯原子饱和吸收稳频技术，实现了激光频率相对于铯原子Ｄ２线６２Ｓ１／２（Ｆ＝４）→６２Ｐ３／２（Ｆ′＝５）超精细跃迁的偏频锁定。
Frequency offset locking technology is widely applied in laser heterodyne detection and laser radar, which is of great value.
偏频锁定技术广泛应用于激光的外差探测、激光雷达等方面,具有重要应用价值。
Simulation of frequency-offset-lock system for narrow pulse coherent laser radar
窄脉冲相干激光雷达偏频锁定系统仿真研究
The purpose of this study was to develop a new method of making up large page of newspaper output to solve the element dislocation and motion locking problems in founder s typesetting software.
针对在飞腾排版软件中实现拼大版输出过程中,容易出现的元素错位和移动锁定现象,在对飞腾软件中的缺陷和报纸排版特性进行认真分析后,提出了从排版布局和格式转换2个方面加以考虑,在不进行软件修正的情况下,只通过改进操作方式的方法,就可以简单、方便地解决好在拼版中出现的问题,从而实现报纸单个版面的拼版输出操作。
Simulation of frequency-offset-lock system for narrow pulse coherent laser radar
窄脉冲相干激光雷达偏频锁定系统仿真研究
Modulation-Free Laser Frequency Locking by AOM Shifted Cesium Sub-Doppler Spectra
声光偏频亚多普勒光谱无调制激光频率锁定
Modulation-Free Laser Frequency Locking by AOM Based on Molecular Absorption Line of CH_4
基于甲烷分子吸收线的声光偏频无调制激光频率锁定
External Optical Cavity Locked by Laser Frequency
激光锁定F-P腔频率的有差锁定研究
Research of Fast Lock-in RF PLL Frequency Synthesizers;
宽带锁相式频率合成器快速锁定模式研究
Intelligence frequency search and trace.
智能搜索波形，锁定和跟踪频率。
Tune in and find out what happened.
锁定国家地理频道，让我们来一探究竟。
A Low Phase Noise Ka Band PLL Source with High Stability
高稳定低相噪Ka波段锁相频率源设计
Design of L-Band Low Phase Noise,Fast Settling PLL Frequency Synthesizer
L波段低相噪、快锁定频率合成器研制
The major advantage of the proposedDPPL is that it has a very high lock-in speed. If a rectangular signalis switched on to the loop,it will lock-in with the frequency of thesignal within one and a half cycles.
其特点是:一是,具较快的锁定速度,可在一拍半内实现频率锁定;
The Study of Timing and Frequency Offset Estimation Algorithms for OFDM Systems;
OFDM系统中的定时和频偏估计算法研究
The Research on Timing and Carrier Offset Estimate Algorithm in OFDM System;
OFDM系统中定时和频偏估计算法的研究
Strong deviation theorems of random variable sequences for occurring frequencies;
随机变量序列发生频率的强偏差定理
A timing and frequency estimation algorithm for OFDM
一种OFDM定时同步与载波频偏估计算法
The experimental results were satisfactory, the beat frequency stability was 1.27×10 -7 (Allen variance).
实验频率锁定结果良好 ,频率稳定度为 1 2 7× 10 -7(阿仑方差 )。
A SINGLE MODULATION FREQUENCY METHOD USED IN THE PASSIVE H MASER
利用单频调制技术实现被动型氢钟的锁定
Long-Term Frequency Stabilization with Digital Servo System
数字伺服系统实现激光器频率长期锁定
Error Calibration of SINS Based on Rate Offset Frequency Ring Laser Gyro
速率偏频激光捷联惯导系统的误差标定