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。
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.
首先介绍并比较分析超宽带信号的波形、调制方式和接收机信号处理方法，讨论了超宽带窄脉冲的产生方法。
Firstly, the waveforms of UWB signal and their modulation modes, signal processing of receiver are introduced and compared. The method for generation of UWB narrow pulse is reviewed.
由于传统谐振直流环节逆变器只能采用离散脉冲调制方式，输出波形中含有丰富的低次谐波，严重影响输出性能。
The output waves of traditional resonant DC-Link inverter have too much low frequency harmonic waves which affect the output performance, because it can only use DPM control.
在对高斯脉冲波形的时域和频域特性进行分析的基础上，采用直接序列扩频方式，进行脉幅调制产生超宽带信号。
Based on the characteristics analysis of the Gauss impulse in time and frequency domains, we generate the UWB signal by 2pam-ds modulation.
而重复频率近似等于调制盘系统调制波形载频的光脉冲会干扰导引头接收到的目标信号，使导引头失去目标。
At a repetition rate nearly equal to the carrier frequency of the reticle system, the jamming source will disturb the target's signal received by the seeker, and make the seeker lose the target.
详细讨论了群速度失配、群速度色散和三阶非线性相位调制效应对倍频光脉冲波形、光谱及转换效率的影响。
The effects of group-velocity mismatch and dispersion, third-order nonlinear phase modulation on pulse shape, spectrum distribution and conversion efficiency of second-harmonic pulse were discussed.
针对DC谐振直流环节逆变器须采用离散脉冲调制的特点，提出了一种新型软化SPWM波形合成方法。文中给出了软化SPWM波形合成基本原理、合成方法及实现电路。
In accordance with the characteristics that resonant DC link inverter should adopt discrete pulse modulation, we propose a novel method of soft SPWM waveform synthesis.
针对DC谐振直流环节逆变器须采用离散脉冲调制的特点，提出了一种新型软化SPWM波形合成方法。文中给出了软化SPWM波形合成基本原理、合成方法及实现电路。
In accordance with the characteristics that resonant DC link inverter should adopt discrete pulse modulation, we propose a novel method of soft SPWM waveform synthesis.
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