讨论了信号时长和差拍频率对雷达作用距离的影响；
The influence of time length and beat frequency on radar range is discussed.
指出在这种简并四波混频中同样可能存在量子拍频效应。
It is shown that quantum beat effect exists in the time-resolved degenerate four-wave mixing.
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。
With ordinary photocells, one can pick up the frequency between two different lasers.
本文分析了光陀螺中由于有限光束宽度对拍频频率的修正因子。
In this paper we analyze the frequency correction caused by a finite beam width in an optical gyro.
分析了这种量子拍频效应的产生条件和特点。讨论了可能的应用。
The behavior of the quantum beat are analysed and its possible applications are discussed.
相位共轭极化拍频起源于四波混频或六波混频过程间的极化干涉。
Polarization beats with phase-conjugation geometry originate from the polarization interference between four- or six-wave mixing processes.
泵浦倒空是限制激光等离子体拍频加速器概念成为现实的严重问题。
The pump depletion is a severe problem which hinders the laser-plasma beat-wave accelerator concept from being practical.
利用相位共轭极化拍频光谱术对V型三能级系统中的光子回波进行了研究。
Photon echo in polarization beat spectroscopy is studied for a V-type three-level system.
论述了线性调频绝对距离干涉测量方案的基本原理以及拍频测量中存在的问题；
The basic principle of the linear frequency modulation absolute distance interferometric plan and the problems existed in beating frequency measurement are described.
本文设计了一种测量仪，基于拍频技术对半导体激光器频率稳定度进行相对测量。
In this paper, a measuring instrument is designed based on relative measurement of the semiconductor laser frequency stability making use of the beat technology.
系统的扫描电流周期和调制器的主脉冲同步，可消除扫描均匀性中出现的拍频现象。
In the system the period of the scanning current is completely synchronized by the major pulse of the modulator in order to avoid the beat.
在符合拍频条件时，能级差可以超出激光线宽，其测量精度可达到与激光线宽同一数量级。
In the condition that a beating occurs, the energy level difference could exceed the laser linewidth, and the measurement accuracy could reach the same order of magnitude as the laser linewidth.
采用四波混频加强SBS的方法，其相干拍频驱动声子场，能提高SBS相位共轭保真度。
Brillouin enhanced four wave mixing, whose interference beat frequency drives an acoustic field, can improve the SBS phase conjugation fidelity.
光拍频干扰噪声大大地降低了单信道的载噪比，严重地劣化了系统的性能，因而必须加以抑制。
OBI noise drastically reduces CNR of each channel and seriously degrades the system performance, therefore must be suppressed.
研究了级联三能级系统中孪生色锁随机光场的相位共轭阿秒和频极化拍频(ASPB)不对称新效应。
The new effects of phase-conjugation asymmetric attosecond sum-frequency polarization beat (ASPB) of twin composite color-locking stochastic fields in cascade three-level system are investigated.
本文采用二阶相干函数理论研究了级联三能级系统中三阶及五阶极化拍频(TPBCTS及FPBCTS)的非线性效应。
Based on the second-order coherence function theory, authors have studied nonlinear effects of third-and fifth-order on polarization beats in a cascade three-level system (TPBCTS and FPBCTS).
本文研究了激发相干态与与V -型量子拍频三能级原子作用时的动力学行为，并对光子反聚束效应和系统光场的压缩特性进行了细致的讨论。
The dynamic behavior of the interaction between the V-type quantum-beat three-level atomic system and the single-mode squeezed vacuum field has been studied based on the quantum theory.
研究了V -型量子拍频三能级原子与单模压缩真空场作用过程中系统的动力学行为，运用数值方法讨论了系统参数对系统光场压缩特性的影响。
The dynamic behavior of the interaction between the V-type quantum-beat three-level atomic system and the single-mode squeezed vacuum field has been studied based on the quantum theory.
研究了V -型量子拍频三能级原子与单模压缩真空场作用过程中系统的动力学行为，运用数值方法讨论了系统参数对系统光场压缩特性的影响。
The dynamic behavior of the interaction between the V-type quantum-beat three-level atomic system and the single-mode squeezed vacuum field has been studied based on the quantum theory.
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