在发送方向，收发信机向功率放大器提供射频信号，功率放大器根据给定调制类型的增益和斜坡信息对信号进行放大。
In the transmit direction, the transceiver provides RF signals to the power amplifier, which amplifies the signals based on gain and ramp information for a given modulation type.
该通信系统还受背景光、雪崩光电二极管（APD）增益和调制消光比等因素的影响。
The results also show that the performance of this communication system can be affected by background optical, APD gain and modulation extinction ratio.
本文讨论了调幅系数为任意值的调幅波，给出了它的表达式、频谱及调幅系数、调制效率和信噪比增益的计算公式。
The amplitude modulated wave with any modulation factor is discussed in this paper. Its expression, spectrum and formula of the modulation factor, modulation efficiency, SNR gain are given.
对基于半导体光放大器中交叉增益调制效应的波长转换后信号的啁啾特性进行了分析。
The chirp performance of converted signal in wavelength conversion based on cross gain modulation (XGM) in semiconductor optical amplifier (SOA) was analyzed.
研究了不同调制速率下的增益开关半导体激光器的最佳工作状态。
The optimal operating condition of gain switched semiconductor laser with different modulation rate is studied in this paper.
对基于半导体光放大器交叉增益调制的波长转换进行了实验研究。
The wavelength conversion based on cross gain modulation in a semiconductor optical amplifier (SOA) has been experimentally studied.
当振幅调制为灰尘颗粒时，功率增益谱出现起伏，并且产生尖峰。
As the modulation of amplitude is dust particle, the fluctuation and peaks are shown in the power gain spectrum.
光回馈调制了激光器不同纵模的阈值增益，阈值增益最低的纵模获得振荡。
The threshold gains of different longitudinal modes are modulated by optical feedback. The mode which has the lowest threshold gain can oscillate.
文中论述了光调制特性、微分增益（DG）、微分相位（DP）、信噪比（S/N）等重要问题。
The optical modulation characteristics, differential gain (DG), differential phase (DP) and signal-to-noise ratio (S/N) are described as well in this paper.
结果显示，能比较好的符合光谱补偿的要求，可以用作补偿增益窄化效应的光谱调制滤波器。
Results show that they satisfy the compensation requirements well and can be used as the spectral compensation filters.
实验结果表明，由于载体寿命的变化，在吸收和增益区域，带宽的时滞随着调制频率的变化而变化。
The experiment shows that the bandwidth of the time delay as a function of the modulation frequency changes in the absorption and gain regimes due to the carrier-lifetime variation.
结果证明，该文级联系统取得高出一般位交织编码调制系统2—6分贝的性能增益。
The results show that the proposed cascade system improves the performance gain by 2 to 6 dB compared to traditional BICM system.
相位跃变是受激背散射光与入射激光间的增益与损耗调制的结果。
In the process of compression the author observed phase jump, which is the modulating result of gain and loss between the Stokes light and incident light.
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.
增益调制器作为功率因数校正电路的核心电路，通过控制输入电流来得到一个高的功率因数。
As the heart of the power factor correction circuit, the gain modulator gets a high power factor by controlling the input current.
为了解决这一问题就引出了BICM，它是将比特交织与编码调制技术相结合，结果表明可以得到在瑞利信道下更好的增益。
To solve this problem, BICM, which combines the bit interleaver and the coded modulation technology, is proposed. The results show that BICM can obtain more gain in Rayleigh channel.
而群速度失配可极大地改变调制不稳定性增益谱的形状、峰值和位置。
The group-velocity mismatch can considerably change the gain spectrum of modulation instability in terms of its shape, peak value, and position.
提出了一种新型的基于电光调制的激光光谱整形方案，该整形技术可以减轻啁啾脉冲放大系统中的增益窄化效应。
A new spectrum shaping method, based on electro-optic modulation, to alleviate gain narrowing in chirped pulse amplification (CPA) system, is described and numerically simulated.
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.
本论文对基于SOA中交叉增益调制(XGM)效应和交叉相位调制(XPM)效应的波长转换器进行了较全面的理论分析和仿真研究。
In this paper, wavelength conversions based on cross-gain modulation (XGM) and cross-phase modulation (XPM) in SOA are studied both in theory and computer simulation.
计算机仿真结果表明，在调制带宽或扩频增益不变的前提下，提高了DSSS调制信号的低概率截获性能。
As a result, the computer simulations show that the LPI capability of the new DSSS modulation become more effective within the same bandwidth and Spread Spectrum gain.
文章给出了信道增益变化下利用蔡氏电路的混沌信号进行的包括信号调制和解调完整过程的混沌键控通信实验电路。
In this paper, an experimental CSK circuit using Chua s circuit with the whole modulation and demodulation process under changeable communication channel gain is presented.
由于受激喇曼散射的作用，使得喇曼增益谱叠加到光纤中的调制不稳定性增益谱上。
Due to the role of stimulated Raman scattering, Raman gain spectrum is superposed over the conventional MI gain spectrum in optical fibers.
分析了三、五阶非线性共存时的交叉相位调制不稳定条件和增益谱。
The condition and power gain spectra of modulation instability induced by the cross-phase modulation in the case of cubic-quintic nonlinearity are analyzed.
基于非线性包络方程我们研究了平面非线性介质波导中的时空不稳定性，得到了有拉曼散射效应情形下不稳定性调制的增益谱的表达式。
Spatiotemporal instability in the planar nonlinear dielectric waveguide is analyzed by nonlinear equation, and the expression of Modulation instability(MI) gain in Raman Scattering is obtained.
通过仿真和测试分析了调制方波的周期、相位、占空比、光纤环的群延时以及放大电路的增益带宽对陀螺输出偏置的影响。
The effects of the square wave cycle, phase, duty cycle and the fiber coil group delay and amplifier gain bandwidth on the bias error of closed-loop FOG were analyzed by simulating and testing.
报道了两个增益开关调制的法布里珀罗半导体激光器互注入锁定实验方案，可产生双波长可调谐光脉冲。
Amutual pulse injection-seeding scheme is developed to generate tunable dual-wavelength optical short pulses by the use of two gain-switched fabry-perot (F-P) semiconductor lasers.
该模块由高速前放电路，数字逻辑电路，强度调制器驱动电路，自动增益控制电路，以及强度调制器组成。
The module is made of high speed amplifier, AGC circuit, digital logical circuit, intensity modulator drive circuit, and intensity modulator.
所以解决电光调制器增益控制和偏置控制的问题成为电光调制的关键技术之一。
Therefore, to solve the electro-optic modulator gain control and offset control of the issue has become one of the key technologies for electro-optic modulator.
功率放大器（12）具有分别用于这两 种调制格式的固定增益模式和可变增益模式。
The power amplifier (12) has a fixed gain mode and a variable gain mode used for the two modulation formats, respectively.
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