This scheme can simplify the structure of the phase modulator and reduce cost.
该方案可以大大简化相位调制器的结构,降低陀螺成本。
Ti: LiNbO_3 Serrodyne Phase Modulator is the key device in closed-loop fiber-optic gyros.
铌酸锂相位调制器是锯齿波调制闭环光纤陀螺的关键器件。
Secondly, two novel ROF system schemes based on the LiNbO3 phase modulator are accomplished.
采用铌酸锂相位调制器设计了两种新型的ROF系统。
The test result indicates that the phase modulator without transformer can suppress the carrier wave.
实测结果表明,这种无变压器环形相位调制器能较好地抑制载波。
Ti: LiNbO3 phase modulator is the key device in closed-loop sawtooth modulation fiber-optic gyroscope.
铌酸锂相位调制器是实现锯齿波调制闭环光纤陀螺的关键器件。
The optical phase modulator does not suffer from the bias drifting problem as it does not need DC bias.
由于光相位调制器不需要直流偏置,不会遇到直流偏置漂移问题。
The effect of phase modulator of optical fiber gyro and light source stability on overall system property is analyzed.
从理论上分析光纤陀螺位相调制器及光源不稳定对整机性能特别是对漂移的影响。
Phase modulator and amplitude modulator are both indispensable optical modulator in quantum cryptographic communication.
相位调制器与振幅调制器是连续变量量子密钥分发中不可缺少的光调制器件。
A novel fiber electro optic phase modulator has been fabricated with the thermal poling of polarization maintaining fiber.
对熊猫保偏光纤热极化,制成了一种新型保偏光纤电光相位调制器。
A piezoelectric ceramic, based on the converse piezoelectric effect, was used as optical phase modulator to design a fiber differential interferometer.
基于压电陶瓷的逆压电效应,采用压电陶瓷作为光相位调制器设计了光纤微分干涉仪。
The envelope of output optical signal after the phase modulator keeps stable and the optical signal can be used to carry uplink data back to the base-station.
在经过光相位调制器之后,输出光信号的包络保持不变,能被基站用来承载强度调制的上行信号。
Directly modulated laser combining with phase modulator is adopted to produce large chirped light, which can be compressed by DCF to generate the optical pulse.
该方案采用直调激光器配合相位调制器产生大啁啾并由DCF压窄输出光脉冲。
To obtain the same effect of using one phase modulator, the amplitude of the drivers on the two phase modulators can decrease to half of that in one phase modulator scheme.
两个相位调制器的驱动信号幅度可减小一半,便可获得和用一个相位调制器方案相同的调制效果。
Electrooptic phase modulator is critical part in digital closed-loop FOG system, the function of which is to create bias phase, so that to make FOG working around zero point.
电光相位调制器是数字闭环光纤陀螺系统中的关键部件,主要用于产生偏置相移,使整个闭环系统始终工作在零点附近。
Utilizing phase modulator and dispersion compensation fiber (DCF) link, a non-return-zero (NRZ) data format is converted to return-zero (RZ) data format with tunable duty ratio.
提出了利用相位调制器和色散补偿光纤(DCF)把非归零(NRZ)码信号转换成为占空比可调的归零(RZ)码信号的方案。
Good photon sensitivity, large index modulation and high resolution make monomer in a number of applications such as holographic polymer grating, photonic crystal and light phase modulator.
聚合物单体由于光敏感性好、折射率调制度大和分辨率高等优点在全息聚合物光栅、光了晶体和光相位调制器等器件中得到广泛的应用。
This paper presents the principles and characteristics of the following modules: power amplifier, phase modulator and up converter, which are used in the transmitter of 1GHz microwave relay system.
本文介绍了用于微波中继系统发射机的功率放大器、调相器、上变频器等组件的原理和特性。
In this article, the schematic diagram, main specifications and the realization of the circuits of the phase differential modulator and measurer are described.
介绍了相位差调制器及测量器的原理框图、主要性能指标及电路实现。
A kind of diffraction element modulating phase information by LC space light modulator to get a zoom Fresnel lens, as well as the using of said element to optical imaging system, is introduced.
本文介绍一种以液晶空间光调制器作为调制位相信息的衍射元件,获得可变焦长的菲涅耳透镜,以及该元件在光学成像系统中的应用。
An electrical current pulse applied to a thin conductive film heats the modulator section and the stationary phase within it, releasing a certain number of retained substances as concentration pulses.
施加到导电薄膜上的电流脉冲将调制器段及其内部的固定相加热,释放出作为浓度脉冲的保留物质。
To minimize the frequency and phase distortion in a DTV transmitter in order to achieve best VSB frequency performance, a pre equalizer can be inserted into the modulator.
为了补偿数字电视发射机的频谱畸变与相位失真,以得到最佳的VSB频谱特性,可以在调制器中加入预均衡网络对频谱进行预畸变。
A kind of coding method of gray-scale phase-only matched filter according to the phase modulation property of the spatial light modulator has presented.
根据空间光调制器的相位调制作用,提出了一种灰阶纯位相匹配滤波器编码方法。
Furthermore, it is found out in the experiments that the degree of phase response linearization of liquid crystal modulator decreases with driving frequency increasing.
同时,本文还在实验中发现了,相位响应的线性化程度会随着驱动频率的提高而降低。
A laser phase modulation system with acoustooptic modulator is described.
本文叙述了一种包含有声光调制器的激光调相系统。
It is a new branch that the artificial transmission line is introduced into optic electronic modulator, realizing phase velocity matched.
把人造传输线的观点引入电光调制器,实现相速度的匹配,是近年来才兴起的一个新的分支。
Secondly, a decomposition model of CPM system is elaborated, which shows that a CPM system can be decomposed into a continuous-phase encoder (CPE) and a memoryless modulator (MM).
然后详细阐述了连续相位调制器分解模型,该模型可以分解为一个线性连续相位编码器(CPE)和无记忆调制器(MM);
The diffracted light intensity on axis of a Spatial light Modulator (SLM) with Multi-level Phase Fresnel Zone Plate (MPFZP) is studied by diffraction optical method.
用衍射光学方法研究了加有多级相位菲涅尔波带片(MPFZP)的空间光调制器(SLM)的轴上衍射光强。
This paper present optical false heterodyne method. It's modulator of phase is constructed by LN crystal in Michelson's interferometer.
本文报导光学赝外差方法,它是利用LN晶体放置在迈克尔逊干涉仪的参考臂中做电光相位调制。
The device is based on a liquid crystal display (LCD), to form a phase-most spatial light modulator.
此装置采用了一个液晶显示器(LCD),它形成偏相位空间光调制器。
This modulator, based on a novel hybrid structure, not only has a programmable duty cycle but also realizes phase modulation.
这个调制器基于一个新型混合结构,不但能产生可编程的占空比,而且能通过相位离散调整实现相位调制。
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