频率分析

词组短语

frequency analysis

与频率分析相关的网络例句 [注：此内容来源于网络，仅供参考]

Aiming at the mathematic model of shafting crankle coupling vibration based on the subsection continuous mass model,the multidimensional frequeney analysis method is put forward and developed.Combining frequency change with shafting configuration parameter,it's more favorable to have direct analysis.The method...

针对基于分段连续质量模型的轴系弯扭耦合振动数学模型，进一步简化并提出多维频率分析方法，将频率变化与轴系的结构参数联系起来，有利于直观分析，同时给出分析振型、共振频率及共振模态等的方法

Marian Adam Rejewski (help·info; 16 August 1905 – 13 February 1980 was a Polish mathematician and cryptologist who in 1932 solved the plugboard-equipped Enigma machine, the main cipher device used by Germany.

在进行这项工作期间，他从根本上发展了密码分析学。之前，密码分析方法利用自然语言中的模式与统计特性，例如字母的频率分析。然而雷耶夫斯基在他对Enigma密码的攻击中第一次应用了纯数学的方法。

Taking WindowsXP,Microsoft EXCEL and VBA as tools,a series of software system on hydrologic frequency analysis which integrated the ability of graph and calculation was developed.And it contained four kinds of frequency distributions:Γ-distribution,extreme value distribution,normal distribution and logarithmic normal distribution.

以Windows XP，Microsoft EXCEL和VBA为开发环境，研制了一套集绘图与计算于一体的水文频率分析软件，其中包含了常用的Γ分布、极值分布、正态分布和对数正态分布4种频率分布线型。

In this article, method of Fixed Point Frequency Analysis was used to extract Fundamental Frequency ( F0) as well as establish the normalized Liner Polynomial Tone Model.

该文利用固定点频率分析提取基音频率(0)建立归一化线性多项式声调模型。

In this paper,flood magnitude corresponding to any return period was estimated and analysed using statistical distribution wayse.g.Extreme Value(EVdistribution,Pearson TypeⅢdistribution and three-par...

以淮河王家坝水文站年最大洪峰流量系列为例，应用电子表格，采用极值分布、皮尔逊Ⅲ型分布和三参数对数正态分布等多种洪水频率分析方法进行洪水频率计算并加以对比研究，得出该站的不同重现期的洪峰流量，以供广大水文工作者参考。

The frequency analysis conducted in this study further indicates that while high token frequency results in lexicalization of V-kai complex verbs, high type frequency leads to schematization of V-kai constructions.

本研究所执行的频率分析进一步指出例的频率会导致「V-开」复杂动词的词汇化，而型的频率则会引起「V-开」构式的基模化。

All kinds of these study results, including analyzing the nucleotide composition, the amino acid composition, the nucleotide diversity, the synonymous and the nonsynonymous, the transition and the transvertion, the frequencies of the codon used, the construction (including four stems and four loops) of tRNAleu,the phylogeny,suggest that great distinctness present among the genera and small difference even none among species.

在各种分析中(包括核苷酸基本组成分析；氨基酸基本组成分析；核苷酸多样性分析；非同义替代和同义替代分析；密码子使用频率分析；转换与颠换分析；tRNAleu基因的四臂四环二级结构分析；&翻译启始&和&翻译终止&在进化过程中的变化；系统发育分析)，属间的差异相当明显，而种间差异很小甚至是没有任何不同之处。

By using the Ricker wavelet and thin inter-beds model data, taking Morlet wavelet, MSW wavelet (A mother wavelet which can match seismic wavelet) and three-parameters wavelet as mother wavelet respectively, the calculated instantaneous frequency is analyzed. Results show that the instantaneous frequency analysis based on three-parameter wavelet has good anti-noise ability and higher temporal resolution.

利用Ricker子波和薄互层模型数据，分析了以Morlet小波、匹配地震子波的小波及三参数小波为基本小波计算的瞬时频率，结果表明：基于三参数小波的瞬时频率分析方法具有良好的抗噪性能及较高的时间分辨率。

Thus, the neurons with sharp frequency tuning and high Q 10 -dB values showed that there was certain relationship between echolocation call and frequency tuning of IC neurons in the leaf-nosed bats.

结果表明，大蹄蝠回声定位信号与下丘神经元频率调谐存在相关性，表现为最佳频率在回声定位信号主频附近的神经元频率调谐曲线的Q10-dB值较大，具有很强的频率分析能力。

For the FA, the results indicated that the VPD calculation using mean of 24 hourly temperature values as saturation vapor pressure, and wet-bulb depression as actual vapor pressure yielded the lowest error, the least range, and the most frequency with the highest WI. These outcomes were as well as the SIA with the lowest EMSE, R^2 higher than 0.99 and the highest CE.

分析结果显示，以频率分析法而言，各地农业气候分区均呈现，VPD计算式以24个时温度日平均为饱和蒸汽压力，与湿球下陷量为实际蒸汽压力，具误差最少、全距最小、出现频率最多及最高权重指数，性能表现最佳，这样的结果，对照统计指标法之检测评估，同样具最低RMSE、R^2值0.99以上及最大CE，性能表现优於其他所有VPD计算式，两者，结果一致。

与频率分析相关的网络解释 [注：此内容来源于网络，仅供参考]

AFT：自动频率调谐

7.1 自动增益控制(AGC)电路大全 3797.1.1 正向和反向(AGC)电路 3797.2 自动电平控制(ALC)电路大全及电路故障分析 3897.3 自动频率控制(AFC)电路大全 3937.3.2 黑白和彩色电视机自动频率调谐(AFT)电路分析 3947.4 自动噪声

allele frequency：基因频率

另对於酒精代谢酶基因型之分析,ALDH2的对偶基因频率(allele frequency)、基因型(genotype)与表现型(phenotype)在三组之间具统计意义之差异,相反地,ADH2只有对偶基因频率具统计意义之差异;

frequency class：频率级

frequency analysis 频率分析 | frequency class 频率级 | frequency curve 频率曲线

corelation analysis：相关分析

设计频率 design frequency | 相关分析 corelation analysis | 暴雨 rain storm

correlation analysis：相关性分析

再给定频率范围内,期望多少个模态. FEMtools相关性分析(Correlation Analysis)FEMtools结构动力修改 (SDM)volume)模拟. FEMtools模型更新 (Model Updating)

fourier analysis：傅里叶分析

不过,在设定一段合理长的时间内为稳态性能,电压和电流波形符合傅里叶分析(Fourier analysis)的条件,则可以用谐波分量来表达. 定义谐波是频率为系统基波频率整数倍的函数成分.

ft：特征频率

利用发射极金属掩蔽进行内切腐蚀的方法研制成自对准InGaP/GaAs异质结双极晶体管 (HBT),其特征频率(ft)达到54GHz,最高振荡频率(fmax)达到71GHz,并且,这种方法工艺简单,成品率高.文中还对该结果进行了分析,提出了进一步提高频率特性的方法.

harmonic analysis：谐波分析

其他在功率品质监控端,美商国家仪器也有解决方案. 据悉,该公司整合波形量测硬体与弹性软体,可执行多种功率监控或功率量表的分析作业. 可执行的量测如均方根值(RMS)、功率因素(PF)、频率分析,与跨通道的相位谐波分析(Harmonic Analysis)等.

absolute harmonic analysis：抽象调和分析

absolute frequency;绝对频率;; | absolute harmonic analysis;抽象调和分析;; | absolute immunity;绝对豁免;;

frequency reuse：频率复用

介绍了802.16e的评估背景,详细阐述了评估的参数设计,并对评估结果进行了分析. 一、评估背景IEEE 802.16e又称为移动WiMAX技术,包含很多目前普遍认为性能表现良好的无线通信传输技术,如OFDMA、MIMO、频率复用(Frequency Reuse)等. 也正是 ...