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- The modulation of SBS pulse shape tends to occur with a short phonon lifetime. 声子寿命越短,SBS波形前沿就越陡,并且越容易出现调制现象。
- Base Band Interpolator Pulse Shaping (BBIPS) filter is a key component of all digital modulator. 摘要基带内插脉冲成形(BBIPS)滤波器是全数字调制器的核心模块之一。
- The pulse shape was smoothed by intrapulse stimulated Raman scattering. 脉冲内拉曼散射对脉冲有平滑作用;
- The discrete ZAK transform and Raised cosine FIR filter are used to design time-frequency well-localized pulse shaping filters for OFDM/OQAM systems. 摘要本文提出一种利用ZAK变换及优化的升余弦滚降滤波器设计的OFDM/OQAM系统时频局域优化脉冲成形滤波器。
- A standard filter design requires many multiple/add operations, while a simple look-up table could realize the modulator pulse shaping filter. 标准的滤波运算带要大量的乘加操作,然而简单的查表操作就可以实现调制器的基带成形滤波功能。
- The out-of-band emission in wireless OFDM can also be reduced.The second one is using Discrete Prolate Spheroidal Sequences (DPSS) to design pulse shaping filters. 另一种是基于正交的离散长球面序列DPSS(Discrete Prolate Spheroidal Sequences)的OFDM/OQAM系统时频局域优化脉冲成形滤波器设计方法。
- Many effective methods have been presented, such as carrier modulation shaping technology, Hermite pulse shaping technology and Gaussian pulse shaping technology. 目前提出了许多方法,比如基于载波调制的成形技术、Hermite脉冲成形技术和高斯脉冲成形技术等。
- Femtosecond spectral holography technique and new applications of femtosecond pulse shaping with space-time conversion in femtosecond chemistry are presented. 主要介绍飞秒光谱全息技术及飞秒脉冲时空变换整形在飞秒化学领域的最新应用。
- Femtosecond spectral holography is a very important technique of femtosecond pulse shaping, which permits storage, recalling and processing of femtosecond pulse signals. 飞秒光谱全息是飞秒脉冲整形技术中非常重要的一种方法,它可以实现飞秒脉冲信号的记录、再现和处理。
- We introduce the principle of THz wave shaping and research development here.The waveform control of THz radiation can be fulfilled via the femtosecond laser pulse shaping. 介绍了利用激光脉冲整形对太赫兹波整形的原理和实验研究进展,通过对激发太赫兹辐射的飞秒激光脉冲整形,可以实现对太赫兹整形的控制。
- For the first one, the discrete ZAK transform and Raised cosine FIR filter are used to design time-frequency well-localized pulse shaping filters for OFDM/OQAM systems. 一种是利用ZAK变换及优化的升余弦滚降滤波器设计的OFDM/OQAM系统时频局域优化脉冲成形滤波器。
- The aberration characteristic of pulse shape coming of FOD is different from SOD and TOD. FOD导致脉冲形状发生了畸变,畸变特点不同于二、三阶色散;
- The numerical simulation on pulse shape of two-cell SBS system was made and agreed with the experimental results well. 对双池受激布里渊散射系统的脉冲波形进行了数值模拟,理论计算结果与实验符合得很好。
- This procedure has a time, a wide range of output pulse shape, control multiple relays. 本程序有计时;脉冲波形多种输出;控制多个继电器.
- As PRF increases,the BER performance of this UWB system is much degraded under the conditions of fixed L and pulse shape. 当固定 L 和脉冲波形时,增大 PRF 将大大降低 UWB 系统 BER 性能。
- This paper presents and algorithm suitable for the digital filter design in WCDMA forward channel, in which, the impulse response of the base band transmit pulse shaping filter has been descirbed. 介绍了一种适用于宽带码分多址 (WCDMA)前向信道中给定基带成形滤波器单位脉冲响应后设计SPT滤波器的方法。
- Abstract: In this paper, we summarized the national scheme of pulse shaping in front-end system of solid state laser driver for ICF and reported the development of pulse shaping in our laboratory. 文摘:本文就国内外ICF固体激光驱动器前级系统脉冲整形方案进行了综述,并报导了我们实验室关于脉冲整形的最新进展.
- The hardware includes computer, double communication cable, RS232/RS485 conversion, inverter, sensor, pulse shaping circuit, PCL-818 data acquisition card and exterior execute machine etc. 硬件是由计算机、RS232/RS485转换器、变频器、异步电动机、光电传感器、脉冲信号整形电路、PCL-818H数据采集卡和外部执行机构组成的系统。
- This paper describes various pulse shaping methods applying active filter, time variance filter and transversal filter to improve energe resolution of spectrometer at high counting rate. 本文介绍用有源滤波器、时变滤波器和横向滤波器等脉冲成形方法来提高能谱测量系统在高计数率条件下的能量分辨率。
- A multi arm Michelson interferometric system for the shaping of the nanosecond laser pulse is designed.Process of the pulse shaping by an all optical method is analyzed theoretically. 设计了纳秒级激光脉冲整形的多臂迈克耳逊干涉仪系统, 并且从理论上分析了利用全光学手段对激光脉冲进行整形的过程。