1、

There are three filtering parameters that are very important, that is pulse length Δτ, band width Δω and attenuation factor Δα, the optimum values of which are determined by experiments.

在进行proni滤波时,有3个滤波参数至关重要,即脉冲长度Δτ、频带宽度Δω和衰减因子Δα,Δτ、Δω和Δα的最佳值要经实验认定。

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2、

The control pulse length needs to be anywhere from 1 ms to 2 ms.

控制脉冲的宽度需要调整在1-2毫秒之间.

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3、

The frequency domain algorithm of quadrature interpolation and pulse compression in radar signal processing is derived. Segmental filtering method is studied in view of frequency domain filtering processing of long signal sequence so that optimum segment length is achieved;

推导了雷达信号处理中正交插值和脉冲压缩处理的频域算法,针对长信号序列的频域滤波处理,研究了分段滤波方法,得出了最佳分段长度。

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4、

Inputting high-frequency and single pulse signal into coaxial line, the time delay and distortion caused by dispersion can be recorded and measured by digital oscilloscope. The line length and attenuation coefficient are achieved.

将高频单脉冲信号输入同轴电缆,借助数字存储示波器记录输入、输出端的波形和相对延时,可以测量传输线的电缆长度和衰减系数,同时观察脉冲波形因色散引起的畸变。

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5、

According to the system with double channel time-division multiplexing, the relationship between the length of delay fiber and the optical pulse and time-division gate array is analyzed, which coincides with the experimental results.

在全光纤化解调温度补偿型传感的基础上,研究了两路时分复用的设计方法,给出了时分链路间延迟光纤与光脉冲和解调端时分选通门的关系,实验结果与理论分析吻合。

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6、

A two-phase Pulse Detonation Engine ( PDE) model was designed which the diameter and the length are 58 mm and 1275 mm respectively.

设计了一台内径58mm,长度1275mm的脉冲爆震发动机(PDE)原型机。

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7、

The focusing condition was loosened by the cross-defocusing effect induced by perpendicularly orientated molecules in air, which led to broadened spectrum of probe pulse and elongated plasma length of probe filament.

发现垂直取向的空气分子诱导的交叉散焦效应可以缓和高能量探测光脉冲的聚焦程度,实现了探测光丝可控超宽带光谱输出及等离子体通道长度显著增长。

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8、

In order to measure the length of steel wire rope precisely, the velocity ratio of pressing wheel and driving windlass is adopted for detecting wheel spin and the accumulated pulse error is also adopted to eliminate the round off error.

为了准确测量钢丝绳的长度,提出了采用比较压紧轮和驱动卷筒的转速比的方法来检测是否打滑,并在程序中采用累积脉冲误差的方法来消除由于微小打滑而出现的舍入误差。

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9、
10、

The principle error of the TDR cable length measurement has also been analyzed. The influence of measuring numbers, counting pulse frequency and traveling wave velocity on measuring accuracy is analyzed.

分析了时域反射电缆测长的原理误差,研究了测量次数、计数脉冲频率、行波波速对测量精度的影响。

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11、

The results show that when the signal line length of sensor is less than 100 m, its influence on sensor dynamic signal will be less than 1%. It meets the real train test requirement of measuring crossing air pressure pulse.

研究结果表明,当传感器信号线长度小于100m时,对传感器输出的动态信号影响不大于1%,满足列车交会空气压力波实车测量要求;

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12、

The temporal and spectral properties of Bessel-Gauss pulsed beams with constant diffraction length in a linear dispersive medium are studied. It is shown that by a suitable choice of the spatial parameter β, Bessel-Gauss pulsed beams propagate along the axis without noticeable pulse broadening.

对等衍射长度贝塞尔-高斯脉冲光束在色散介质中的时间和光谱特性作了研究,结果表明,通过选择适当的空间参数,贝塞尔-高斯脉冲光束沿轴上传输时,脉冲宽度不变。

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13、

When the exterior circuit was certain, the output voltage was mainly determined by the biased, but it was also affected by the chip materials, the gap length on the device resistance and the optical pulse energy to a certain extent.

光电导开关输出电压的大小在外电路一定的条件下主要由偏置电压决定,同时开关芯片材料、开关电极间隙宽度以及触发光脉冲能量也会对其产生一定的影响。

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14、

We plan to shorten the cavity length to less than 5m, and then use fiber amplifiers to CPA amplify the chirped pulse output by the laser. The amplified pulse will be compressed by bulk grating pair.

a.在原有的基础上继续优化激光器,缩短腔长至5m以下,将激光器输出惆啾脉冲经光纤放大器进行CPA放大,然后用光栅对进行压缩。

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16、

from the length of the pause between a tone and the heat pulse.

从声音与热脉冲之间的时间暂停的长短。

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17、

realization of counting real time length of double twister strander with high speed in the way of pulse counting

基于脉冲计米的双捻机高速实时计米的实现

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18、

The relations between the initial length of rabbit's muscles rectus femoris and its contraction tension were studied with stimulation of pulse electric current.

本实验以免载体股直肌为实验模型,研究了该肌在一定脉冲电流刺激下其初长度与收缩力、肌张力及肌力变化的相互关系。

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19、

A Weighting Method for Barker Code of length 13 in SAW IF Pulse Compression System

SAW13位巴克码中频脉压的加权研究

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20、

The experimentally observed variation tendency of output pulse parameters with the change of total cavity length was in agreement with simulation results.

实验中观察到的腔长变化时脉冲参数的变化趋势与数值模拟的结果一致。

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