Several parameters related to modulation wave, such as wave vector, wave length and argument phase etc.
详细地讨论了有关调制波的若干参数，如波矢量、波长、幅角、位相等。
The analysis of modulation wave theory has very important theoretical and actual meaning for studying non sine alternating current.
谐波理论分析对于非正弦交流电路的研究具有重要的理论和实际意义。
The generation of modulation wave by wide band multiplier is designed after deep discussion on theory of the modulation wave generation.
在深入探讨调制波的产生原理基础上，设计了一个基于乘法器的调制波发生电路。
The transmitting and receiving unit (5) converts the transmission analog baseband signal into a transmission modulation wave signal to output to the network.
发射和接收单元(5)将发射模拟基带信号转换为发射调制波信号，以输出到网络。
Also, optimized SAPWM modulation wave has been utilized, improving the utility ratio of DC voltage and restraining effectively the output harmonic current of inverter.
并采用优化的SAPWM调制信号，提高了直流电压的利用率，并能有效地抑制逆变器输出的谐波电流。
The traditional methods for identifying beat wave and amplitude modulation wave are shortage. The main disadvantage of these methods is that they can 't correctly identify in some cases.
现有的拍波与调幅波的识别方法存在不足，本文提出了基于分形几何原理的辅助判别方法。
In other words, pulse width modulation is a modulation technique for generating variable width pulses to represent the amplitude of an input analog signal or wave.
或者换句话说，脉宽调制是一种调制技术，为发电可变脉冲宽度为代表的幅值输入模拟信号或波。
Pulse width Modulation device is a circuit which can produce square wave signal with fixed period and adjustable pulse duration ratio (pulse width).
脉宽调制器是一种能够产生周期固定而占空比(脉宽)可调的方波信号的电路。
Wave distortions in the intensity modulation on different bias conditions have been analyzed.
分析了不同偏压条件下声光强度调制的波形失真。
LFMCW (Linear frequency Modulation continuous wave) radar is a radar system which can get the information of range and velocity through modulating the frequency of continuous wave.
线性调频连续波雷达是一种通过对连续波进行频率调制来获得距离与速度信息的雷达体制。
Based on linear frequency modulation continuous wave (FMCW) technique, we have developed a distance measurement method for non contact and non integrating error measurement.
给出一种以频率调制连续波（FMCW）技术为基础的进行无接触、无累加误差和较大动态范围距离测量方法。
If the modulation rate is high, it is possible to smooth out the pulse train using passive electronic filters and recover an average analog wave form.
如果调制率高，是有可能顺利进行，脉冲列车使用被动电子过滤器和收回平均模拟波形。
As one of inverters, Sinusoidal Pulse Width Modulation inverters can achieve low total harmonic distortion output wave.
正弦脉宽调制逆变器作为逆变器的一种，可输出谐波含量小的正弦波形。
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.
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。
As one of inverters, Sinusoidal Pulse Width Modulation (SPWM) inverters can achieve low total harmonic distortion (THD) output wave.
正弦脉宽调制(SPWM)逆变器作为逆变器的一种，可输出谐波含量小的正弦波形。
Then the mutual affection of multi-pneumatic-hammers was studied using the theory of elasticity wave and random modulation.
然后利用弹性波理论和信号随机调制理论，分析了多路随机振动互相作用。
The low-frequency slot harmonic modulation is used to weaken the end effect or decrease the wave of the thrust, and the many projects are designed or the better project is selected.
采用齿谐波低频调制的设计方法，来削弱直线电机固有的端部效应，使推力的波动减小，并进行了多方案计算，得出比较好的设计方案。
The frequency modulation effects of positive dipole (unipole) forcing source on LFO is stronger than negative dipole (unipole), and the wave oscillation quicken evidently.
正偶(单)极强迫源对大气低频振荡的调制作用强于负偶(单)极，波动振荡明显加快。
Conclusion: t wave changes after ablation are most likely caused by electrotonic modulation, and are not a sign of myocardial injury.
结论：提示显性旁道射频消融术后T波改变为电张调整性T波改变，非心肌损伤所致。
The reductive perturbation method of multiple-scales is used to investigate the weak nonlinear modulation of the stress wave on the wall of a fluid-filled elastic circular tube.
本文应用多重尺度约化微扰方法研究了充满流体的圆形弹性管壁上应力波的弱非线性调制问题。
Introduction was made to the method of sine pulse width modulation (SPWM) wave generated by table searching, which is based on area equivalence principle.
介绍了一种基于面积等效原理，采用查表法产生正弦脉宽调制(SPWM)波的方法。
Secondly, when the operation frequency is given, the dispersion relation between transverse wave vectors were analyzed with various longitudinal wave vector or modulation coefficients.
其次，在给定工作频率的情况下，分析了不同纵向波矢量和不同调制系数时的横向波矢量间布里渊区色散特性。
Digital TV signal modulation is a message transmitting method which is expressed by some discrete states in carrier wave. Only carrier wave modulating parameter is detected.
数字电视信号的调制是用载波信号的某些离散状态来表征所传送的信息，在接收端只对载波信号的离散调制参量进行检测。
In this paper, the configuration of the fin line is used to realize the traveling wave modulation of microwave to optical wave.
本文考虑利用鳍线结构实现微波对光波的行波调制。
Based on the analyses of point to point millimeter wave communication system, we study and design the modulation and demodulation.
在分析毫米波点对点通信系统的基础上，研究和设计了其中的调制解调部分。
Modulation of light refers to changing parameters of light wave such as amplitude, intensity, and phase, frequency, polarization, etc. to make it carry message.
光辐射的调制是指改变光波振幅、强度、相位或频率、偏振等参数使之携带信息的过程。
The influence of Kerr effect to close-loop digital resonator fiber optic gyroscope based on square-wave frequency modulation was analyzed in theory.
对采用方波频率调制数字闭环谐振型光纤陀螺中克尔效应的影响进行了深入的理论分析。
Ionospheric frequency modulation causes spreading of the surface clutter in Doppler domain which greatly limits the detection performance of HF sky-wave radars.
电离层频率调制导致地表面杂波的多谱勒展宽，极大地限制了高频天波雷达的目标探测性能。
Ionospheric frequency modulation causes spreading of the surface clutter in Doppler domain which greatly limits the detection performance of HF sky-wave radars.
电离层频率调制导致地表面杂波的多谱勒展宽，极大地限制了高频天波雷达的目标探测性能。
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