It shows that proper square root raised cosine pulse shaping filter can improve the error performance of data transmis.
文章阐明了脉冲成形技术可以压缩信号的频谱,分析了恰当选择的平方根升余弦脉冲成形滤波器可以明显提高短波信道数据传输的误差性能。
The correlative coding was equivalent to a pulse shaping filter after inverse fast fourier transform (IFFT).
建立相关编码与卷积的关系,相关编码可等效于快速傅里叶逆变换(IFFT)之后的一个脉冲成形滤波器。
Inter-symbol interference(ISI) and frequency width expanding can be avoided by pulse shaping technique in most communication system.
脉冲成形技术能有效减小码间干扰和被调制信号的谱宽度 ,利用多相结构可以降低脉冲成形滤波器对硬件电路运算速度及处理字长的要求。
A new method to generate orthogonal UWB shape impulses is proposed based on the eigenvector of hermitian matrix and chirp signal,and the desired shape impulses have been given.
脉冲波形设计是关系到UWB系统性能的关键因素,基于Hermite矩阵特征向量和Chirp信号提出了一种产生UWB信号正交成形脉冲的新方法,并且得到了期望的成形脉冲。
Based on traditional MHD system and modern MHD,the high power impulse forming and transmitting technique was discussed,the transform technique and implementing circuits of the high power multiple impulses from the single low voltage impulse was investigated,the experimental result was given and the key implementing the system was expounded.
在讨论传统脉冲磁流体动力(MHD)系统和现代脉冲MHD的基础上,探讨了基于火药燃烧的大功率脉冲形成与发射技术,着重研究了低压单脉冲MHD输出转换为大功率多脉冲电磁能的方法和实现电路,给出了实验结果,并对实现该系统的一些关键问题进行了阐述。
The monitors were installed on water transmission line and pulse forming line.
对阳加速器水传输线、脉冲形成线和PTS单路样机中储探测器的标定和实验结果表明:无论是自积分电容分压器还是V-dot探测器,只要取值合适,同时在结构设计中注意分布参数的控制,就都可以响应前沿为几十ns至接近μs量级的信号。
In order to develop high power ultrawide band technology, the principle of the pulse forming line and the DBD are used to suppress the output waveform of the SOS pulse source, and the experiment results are presented: the pulse with the peak power of 450 MW, pulse duration of 6 ns is compressed into the pulse with the peak power of ~1 GW, pulse width ~1.
为输出1～2ns脉宽的脉冲,进行了利用脉冲形成线原理和DBD开关快速导通技术压缩SOS脉冲源输出波形的实验,结果表明:峰值功率450MW、脉宽6ns的脉冲输出可压缩为峰值功率约1GW、阻抗50Ω、脉宽1。
A compact output switch for a water pulse forming line(PFL) e-beam accelerator was designed.
介绍了一种水介质脉冲形成线强流电子束加速器的输出开关的设计和实验结果。
Design of a Spiral PFL Based on Tesla;
一种Tesla型的螺旋脉冲形成线设计
Three PFLs were serially triggered to form a 3-pulse and a sequence of 3-pulse was produced along the same time axis.
介绍了单传输线型高压脉冲形成线的基本原理,将三套单线通过高性能开关串联即可形成所需的三脉冲。
Based on a combination of pulse transformer and distributed electrical parameter pulse forming line(PFL),a high power pulse generating and forming technology is introduced.
研制的脉冲变压器与形成线一体化装置利用变压器的同轴开环铁芯来充当分布电参量脉冲形成线的内外导体,将脉冲功率源中最重要的两个独立部件有机结合起来,实现了结构的紧凑性。
A novel technique based on Nyquist pulse shaping is proposed for PAPR reduction.
本文提出一种新的基于Nyquist脉冲成形的PAPR抑制方法。
Study on MARX Generator Discharge Circuit and Pulse Forming;
MARX放电电路脉冲成形技术的研究
Pulse Shaping Designing & the Performance Analysis of the IR-UWB System
IR-UWB脉冲成形设计及系统性能分析
Pulse Shaping Based on FPGA and High Speed DAC
基于FPGA和高速数模转换器的脉冲成形
Interference Mitigation Study for UWB and TD-SCDMA Based on Pulse Shaping
基于脉冲成形的UWB对TD-SCDMA干扰消除研究
pulse shaping and reshaping
脉冲的成形与再成形
pulse shaping circuit
脉冲形成器脉冲整形电路
Artificial line(pulse form network)
人工线(脉冲形成网络)
Numerical simulation of electromagnetically assisted sheet metal stamping for cylindrical deep drawing
筒形件磁脉冲辅助冲压成形数值模拟
UWB Pulse Generation Based on Pulse Forming Network
基于脉冲形成网络的超宽带脉冲产生与设计
Experimental investigations on electromagnetically assisted sheet metal stamping for aluminum alloy cylindrical part
铝合金筒形件磁脉冲辅助冲压成形试验研究
Research on the Intelligente Pulse Power of EDM;
电火花成形加工智能脉冲电源的研究
A Blind Estimation Algorithm of the Frequency-Shaping Pulse of CPM-Signal
一种CPM信号频率成形脉冲盲估计算法
Numerical Simulation for Micro Laser Peen Forming of Ultrathin Sheet Metal;
超薄板材脉冲激光微冲击成形过程数值模拟
Experimental Study for Micro Laser Peen Forming of 8011 Aluminum Alloy Foil
8011铝合金板材脉冲激光微冲击成形实验研究
Microscale laser peen forming of sheet metal and its research situation
板材脉冲激光微冲击成形技术及研究现状
Research on Pulse Electrochemical Modification of Gear with Moving Shaped Cathode;
移动式成形阴极脉冲电化学齿轮修形工艺研究
Deep venous thrombosis prophylaxis after hemorrhagic stroke:a comparison of the arteriovenous impulse system and massage.
动静脉脉冲系统预防出血性脑卒中后深静脉血栓形成的临床研究
Experimental Study of Micropulse Diode Laser Trabeculoplasty in Rabbit Eyes;
兔眼微脉冲激光小梁成形术的实验研究