这种效应叫做自相位调制。
相位调制型的关键问题之一是增敏和去敏。
One of the key problems in the phase interferometer hydrophone is enhanced sensitivity and desensitization.
提出了一种半导体激光正弦相位调制干涉仪。
A sinusoidal phase modulating laser diode interferometer is proposed.
首次建立了微变形镜阵列的光相位调制系统级模型。
Moreover, the optical phase modulation behavior model of micro deformable mirror arrays is established for the first time.
通过对步进电机控制器编程实现了相位调制的自动化。
We can realize the automation of the phase modulation by programming the controller of stepper motor.
本文将主要对交叉相位调制(XPM)效应的影响展开研究。
This paper will discuss the effect of Cross-phase modulation (XPM).
该现象可以用高斯光束通过介质时产生的空间自相位调制解释。
This phenomenon can be explained by the spatial self-phase modulation of the Gaussian beam passing through the nonlinear medium.
利用正弦相位调制干涉技术检测微小位移,精度可达纳米量级。
By using sinusoidal phase-modulating interferometric technique, the testing of fine displacement can achieve nanometer accuracy.
连续相位调制的最佳相于解调的误码性能取决于其最小平方欧氏距离。
The error performance of continuous phase modulation (CPM)with optimal coherent detection depends on its minimum squared Euclidean distance(MSED).
推出了存在光纤损耗时交叉相位调制效应所产生的啁啾的解析表达式。
Considering the fiber loss, an analytic expression of the cross phase modulation induced chirp is derived.
信号采用伪随机编码进行相位调制,相当于是用载频对伪随机码进行上变频。
Using pseudo random code to modulate the signal's phase equals to frequency up-conversion of the pseudo random code by the carrier frequency.
根据传统光学干涉原理研制出的相位调制型光纤传感器,其突出优点是灵敏度高。
The optic fiber sensors of phase modulation type developed by the interference theory in traditional optics are high sensitive.
连续相位调制(CPM)的最佳相干解调的译码性能取决于其最小平方欧氏距离。
The error performance of continuous phase modulation (CPM) with optimal coherent detection depends on the minimum squared Euclidean distance (MSED).
造成信号倾斜的原因是由于高反馈强度下引起的非线性相位调制了输出信号强度。
The reason of the fringe inclination results from the nonlinear phase in signal intensity impacted by feedback.
无载波振幅和相位调制正在成为事实上的标准,迄今已占了这个新生市场的大部分。
Carrierless Amplitude and Phase Modulation has emerged as the DE facto standard, having captured most of the nascent market to date.
在半导体激光正弦相位调制干涉仪中,光源输出光强的变化是测量误差的主要来源。
In sinusoidal phase modulating laser diode interferometer, the main error source is the variation in output light intensity of light source.
尾波场效应导致脉冲自相位调制的不对称性,其大小与初始脉冲形状和脉宽大小有关。
The effect of wakefield, which depends on the initial pulse shape and width, leads to the asymmetry of pulse self phase modulation.
地面干扰发射机和SAR之间的附加相对运动,产生了传输发射信号的寄生相位调制。
Due to additive relative motion between ground jamming emitters and SAR, the spurious phase modulation of transmission signal is produced.
本文研究了随机脉冲位置调制与脉冲之间随机相位调制相结合的脉冲多卜勒雷达信号。
In this paper, a PD radar signal is researched, which is modulated by randomly staggered pulse sequence whose phase is also modulated by random binary-phase code.
相位调制,调相:一种电子调幅,为了传递包含在信号中的信息,而使载波的相位改变。
A type of electronic modulation in which the phase of a carrier wave is varied in order to transmit the information contained in the signal.
人们正在尝试着利用BSO晶体的电光效应以各种方式进行光波的波前调制和相位调制。
Now, people are trying to use various methods, including the electro-optics effect of BSO, to modulate the wavefront of light or modulate its phase.
提出了一种基于空间相位调制技术可用于近红外瞬态波前高精度检测的环形径向剪切干涉仪。
An circular radial shearing interferometer based on spatial phase modulation is proposed to measure the transient near infrared laser pulse wavefront with high precision.
从非线性薛定谔方程出发得到了色散缓变光纤中交叉相位调制(XPM)不稳定性的增益谱。
Modulation instability gain spectrum resulted from cross-phase modulation (XPM) in decreasing dispersion fiber (DDF) is presented from nonlinear Schrodinger equation.
结果表明:自相位调制不影响混沌信号脉冲的形状,但能产生非线性相移使混沌信号频谱展宽;
Self-phase modulation of fiber does not affect the pulse shape of chaotic signal, however, its product of nonlinear phase shift can widen the chaotic signal spectrum.
利用光学连续相位扫描和正弦相位调制相结合,提出一种ESPI时间平均测振的定量分析方法。
In this paper, the phase continue scan is combined with the sinusoidal phase modulation to determine the vibration amplitude of object by time average ESPI.
从非线性薛定谔方程出发得到了色散缓变光纤(DDF)中交叉相位调制(XPM)不稳定增益谱。
Modulation instability resulted from cross phase modulation(XPM) in decreasing dispersion fiber(DDF) is presented from nonlinear Schrodinger equation.
联合频率相位调制(JFPM)同时利用频率信息及相位信息,具有较高的频带利用率和功率效率。
Joint frequency and phase modulation (JFPM) utilize frequency and phase information to realize higher efficiency in the frequency and power.
轮廓调制结合了一种相位调制信号的波形和放大器的输出阻抗,可在某个较大型输出电源关闭后保持更高的效率。
Contour modulation is a technique in which a phase-modulated signal waveform and amplifier output impedance work together to maintain higher efficiency over a sizable output power back-off.
轮廓调制结合了一种相位调制信号的波形和放大器的输出阻抗,可在某个较大型输出电源关闭后保持更高的效率。
Contour modulation is a technique in which a phase-modulated signal waveform and amplifier output impedance work together to maintain higher efficiency over a sizable output power back-off.
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