The modulation characteristic is an important characteristic of amplitude modulator.
调制特性是振幅调制器的一项重要特性。
In this paper, the method and the equipment measuring modulation characteristic of DFB LD with spectrographic analysis are described.
本文介绍了利用光谱分析测量dfbLD调制特性的方法及装置。
Different types of LCSLM have different modulation characteristics, in particular their phase modulation characteristic, so this must be measured before it is used.
但由于不同型号的液晶空间光调制器的调制特性，尤其是位相调制特性存在较大的差异，故在实际使用前均需加以测量后才能应用。
The static frequency modulation characteristic of electric network is the foundation of frequency stability of the electric network that determined by frequency modulation.
由一次调频决定的电网静态调频特性，则是电网频率稳定性的基础。
Based on the characteristic parameters extracted from transform domains, the automatic modulation recognition has been realized by employing decision theory.
该算法从变换域提取全部特征参数，采用决策理论算法，实现调制类型的自动识别。
First, the generation mechanism, components and frequency characteristic of radiated noise of naval ships are studied. There exists periodical modulation for the amplitude of propeller noise.
首先讨论了舰船辐射噪声的产生机理、构成和频率特性，指出螺旋桨噪声的振幅存在周期性调制。
Based on the characteristic extracting of RF signal in digital cable TV system, this paper puts forward an algorithm for modulation recognition between 16qam and 64qam RF signals.
从有线数字电视射频信号特征参数提取着手，建立了一套识别16QAM和64 QAM射频信号调制方式的数学算法。
According to frequency spectrum transfer characteristic of modulation and demodulation, we think the position measurement noise is Gaussian narrowband noise.
根据调制解调的频谱转移特性，提出了有效位移噪声是高斯窄带噪声。
The working principle and performance characteristic of asynchronous motor cascade velocity modulation are analyzed, and the inner feedback cascade velocity modulation is introduced systematically.
分析了异步电动机串级调速的工作原理与性能特点，介绍了内反馈串级调速电机及其装置的系统结构。
Aiming at the spectrum spread problem of traditional digital modulation signals, a time-phase modulation (TPM) method with abrupt phase change characteristic is proposed.
针对传统数字调制信号频谱扩展问题，提出具有相位突变特性的时相调制(TPM)方式。
The term multicarrier modulation includes a number of transmission schemes whose main characteristic is the decomposition of any wideband channel into a set of independent narrowband channels.
一般多载波调制技术的主要特性是将一定宽频信道分解成为一组多个窄频信道。
E. Modulation - Usually incorrectly referred to as a characteristic of a brake system.
调制——这通常被错误地称作刹车系统的一项特性。
The radar controller is then arranged to modify a given modulation pattern in dependence on the characteristic frequency of the signal being modulated.
雷达控制器则设置成根据被调制的信号的特征频率修改给定的调制图案。
In this paper, the relationship of SBS threshold characteristic with linewidth of light source and modulation types was talked about, and was approved by experiments.
文中主要讨论了SBS的阈值特性与光源静态线宽及光源调制类型的关系，并通过实验进行了验证。
Tish Paper studies a few method of generating PWM pulse, Also analyse and discuss the harmonic characteristic of these modulation techniques, and provide a prof to select these method.
对产生PWM波的几种方式的谐波特性做了比较和探讨，为合理地选取控制方式提供了依据。
The results clearly show conduction losses are the function of semiconductor static characteristic, power factor, modulation depth and load current.
该表达式与器件静特性、功率因数、调制度及负载电流有关，利用其计算不同载波调制下通态损耗时只需改动导通占空比。
After the combination of direct flux control algorithms and over-modulation technique, a rapid dynamic torque response characteristic is also achieved in the flux-weakening control areas.
直接磁链控制算法与过调制技术相结合后，在弱磁控制区也实现了快速的动态转矩响应特性。
After the combination of direct flux control algorithms and over-modulation technique, a rapid dynamic torque response characteristic is also achieved in the flux-weakening control areas.
直接磁链控制算法与过调制技术相结合后，在弱磁控制区也实现了快速的动态转矩响应特性。
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