pulse spectrum
英 [pʌls ˈspektrəm]
美 [pʌls ˈspektrəm]
脉冲频谱
双语例句
- Pulse power spectrum analysis and communication performance based on UWB in coal mine well
矿井UWB信号功率谱分析及传输性能 - Microwave pulse spectrum analyzer
微波脉冲频谱分析仪 - Then the effect is to steepen the flanks of the pulse spectrum.
因此在效果上是加大了脉冲谱翼部的陡度。 - The pulse spectrum broadening and dispersion compensation compression phenomenon when focusing the laser pulse into bulk media are experimentally investigated.
实验研究了线偏振和圆偏振状态下的飞秒强激光脉冲在块状材料中的传输过程。 - 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.
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。 - Software Design of Real-time Pulse Power Spectrum Analysis by VB6.0
基于VB6.0的实时脉搏功率谱分析软件设计 - Studies on Pulse Spectrum Produced by Single and a Few Primary Electrons in a Proportional Counter
低气体放大倍数下单电子和少数电子在正比管内产生的脉冲分布 - Discussion on the Measurement of the Rectangular Pulse Spectrum
矩形脉冲频谱分析方法研究 - Especially, in the solution of pulse spectrum, the negative frequency form of NLS equation should be solved by the negative frequency form of Fourier transformation, while the positive frequency form of NLS equation is solved by the positive frequency form of Fourier transformation.
尤其在脉冲频谱的求解问题中，如果采用负频形式的非线性薛定谔方程则必须选取负频形式的傅里叶变换；如果采用正频形式的非线性薛定谔方程则必须选取正频形式的傅里叶变换。 - Due to the frequency selectivity and high insertion loss of SAW device, the input must be high pulse whose spectrum width can cover the center frequency of SAW tap delay line.
由于SAW器件具有频率选择性及较高的插入损耗，使得它的输入必须为高脉冲且脉冲的频谱宽度能覆盖SAW抽头延迟线的中心频率。 - Power spectral density deduction and analysis were made to show that the power spectrum of DS-UWB signal was governed by pulse spectrum and code spectrum.
推导并分析了DS-UWB信号的功率谱，指出DS-UWB信号的功率谱是由发送脉冲信号的频谱和编码频谱共同决定。 - Stability of pulse X-ray spectrum field generated by intense diode
强流二极管产生脉冲X射线能谱场稳定性研究 - Before starting the step drive pulse, the sampling number should be zero in order to reduce the interference from the rectangle pulse signal spectrum to transfer function.
从矩形脉冲频谱对系统传递函数影响的角度，说明了为减少矩形脉冲频谱对传递函数标定曲线的干扰，应使阶跃激励开始时刻前的采样点数为零。 - The effects of group-velocity mismatch, self-and cross-phase modulation, the thickness of crystal, and the chirp of fundamental field on the conversion efficiency, pulse shape and spectrum of third-harmonic field were discussed.
讨论了群速度失配、自相位调制和交叉相位调制、晶体厚度、基波的频率啁啾等因素对超短脉冲单块晶体的三次谐波转换效率、三倍频光脉冲形状以及频谱的影响。 - This paper presents the pulse signal spectrum bandwidth using Romberg numerical integration algorithm under a certain energy wastage required. A reconstruction signal is obtained by Fourier Series, and the optimum bandwidth of the measurement system is also presented.
本文用Romberg数值积分法计算出在一定能量损耗限值要求下的脉冲信号频谱宽度，并用付氏级数对其进行了信号重构验证，据此得出了脉冲信号测试系统带宽的最佳值。 - The PD parameter extracting methods of the fingerprint charts were researched, and a new method was put forward that used Weibull model to analyze PD pulse amplitude distribution spectrum. Weibull parameter scale parameter and shape parameter were used as new character.
对局部放电各种指纹谱图提取特征参数的方法作了深入研究，提出用Weibull模型分析局部放电的脉冲幅值分布谱图，引入两个新的局部放电特征量尺度参数和形状参数。 - Application of generalized pulse spectrum technique to the image reconstruction in optical computerized tomography
求解光学CT图象重建问题的广义脉冲谱技术研究 - Design of a pulse laser spectrum testing system
脉冲激光光谱测试仪的设计 - 73 7% cases was detected red blood flow on the retina imaging and 68 4% cases be recorded pulse flow spectrum.
脱离视网膜上有红色血流信号显示73.7%，记录到搏动性血流频谱68.4%。 - In this paper, for solving the parameter problem of two dimensional wave equation, the method of Finite Element and the Pulse Spectrum Technique, i.e. the iterative process are used.
本文针对求解二维波动方程的参数问题，利用有限元方法把波动方程反问题转化为有限元反问题，并利用脉冲谱技术，即一个迭代过程进行求解。 - There are two main difficulties in simulating C/ O logging with available edition of MCNP code: the statistic error of the pulse height spectrum is too big, as well as the inelastic spectrum and the capture spectrum cannot be scored separately.
使用现有MCNP程序数值模拟碳氧比能谱测井遇到了2个主要困难：脉冲幅度谱的统计误差过大和F8计数不能分别得到非弹谱和俘获谱。 - Then with a self-made program to calculate the convolution of the flux and the matrix to obtain the pulse height spectrum.
然后用自编程序计算两者的卷积，从而得到仪器的脉冲幅度谱。 - Application of thermoluminescence dosimeter on the measurement of hard X-ray pulse energy spectrum
热释光探测器在脉冲硬X射线能谱测量中的应用 - An effect of resistivity profile imaging was obtained through successfully applying the generalized pulse spectrum technique, which has been widely used in the tomographic technique, to the imaging problem of MT 2-D inversion.
文中将层析成像技术中广泛采用的广义脉冲谱技术应用了解大地电磁维反演成像问题，实现了电阻率剖面成像。 - Now, there are many methods for solving inverse problem at home and abroad, such as select method, para-solution method, Tikhonov regularization method, pulse spectrum technique, the best perturbation method and enhance Lagrange method.
目前，国内外有许多求解反问题的方法，例如选择法、拟解法、Tikhonov正则化方法、脉冲谱方法、特征线法、最佳摄动量法及增强拉格朗日法等，但这些方法都有不足之处。 - With the increase of magnetic field, the pulse spectrum can be broadened and the polarization dependency of nonlinearity reduces.
研究表明，脉冲频谱会随着外加磁场的增加而展宽，磁场有助于减弱光纤非线性的偏振依赖性。 - The spread and compress of millimeter wave pulse frequency spectrum will happen in Doppler Effect during rain.
在降雨条件下，多普勒效应后毫米波脉冲频谱发生展宽和压缩。 - To suppress the noise of the stacked pulse, temporal pulse smoothing by spectrum filtering has also been studied.
为解决堆积脉冲的噪声问题，还开展了脉冲平滑滤波技术的研究。 - So various methods are proposed by scholars to solve these problems, such as pulse spectrum method, the best perturbation method, Monte Carlo method, optimized and regularization method.
因此许多学者提出了各种求解反问题的方法，比如脉冲谱方法，最佳摄动量法，蒙特卡罗方法，各种优化方法和正则化方法等。 - The changes of pulse frequency spectrum in Doppler Effect are analyzed when millimeter wave pulse propagates through rain medium.
分析了降雨环境下，多普勒效应后毫米波脉冲频谱特性。