查询词典 correlation

Using spectral correlation of cycle stationary signal, this paper studies a method of time difference of arrival estimation, called spectral correlation ratio.

利用周期平稳信号的谱相关特性，研究了一种进行时差估计的方法，称之为谱相关比值法。

The body density has a negative correlation with the cross-sectional areas of the thigh, but positive correlation with fat ratio.

运动员身体密度与大腿断面各组成的面积均呈一定的负相关，而体脂率与其呈正相关。

The spectral data were analyzed by weighted correlation. Pearson's R and Δ R (defined as the absolute value of the difference between Pearson's R and its mirror image in the correlation table) were calculated and used for assessing the spectral similarity between the drugs.

利用加权相关分析对以上光谱数据进行分析，得到各产品之间的Pearson′s R和ΔR(Pearson′s R 与其镜像位置值的绝对差值)，并以此进行各产品的光谱相似性比较。

Study tool is "Science and technology Material Item Correlation Table" drawn up by research group, answered by three current teachers, the correlation of each material item is displayed by quantification data through SPSS statistical software to understand potential internal factor and display another structure in the curriculum.

研究工具是由研究小组建立一「自然与生活科技教材内容细目相关联表」，由三位现职教师填答，经SPSS统计软体处理，将教师对教材细目之间的关联性，以量化数据的方式呈现，来了解课程潜在的内在因素，及呈现课程的另一架构。

A uniform auto-correlation and cross-correlation probability distribution functions of digital correlator is derived from the probability and statistics theory.

从概率论与数理统计出发，推导了一种统一的数字相关器的自相关峰和互相关峰的概率分布函数。

The theoretic formulas for cross correlation analysis were derived. 2. According to the frozen model, a transit model and expression formula of flow noise were got. Parameter estimation algorithm was applied in calculating of cross correlation function.

根据凝固模型，建立了流动噪声信号的传递模型，推导出凝固模型时的传递函数的表达式；对两种流动模型情况下，流动噪声的传递进行理论和仿真研究，仿真表明，尽管参数估计法可以消除传感器的涂污现象，但计算量大，速度慢，不能满足实时测量的要求。

Ultrasonic measurement method is a new one. It has many advantages, such as, not changing the profile of the flow and characters of the fluid, non-invasion, no pressure losing and can work under the severe conditions. Collecting the flow noise signals at the upstream and downstream of the pipe, adopting the cross correlation method to analysis signals, calculating the cross correlation function and finding the peak of it, then we can get the transit time.

超声波流量测量具有不改变流动状态与性质、非接触、耐恶劣环境等优点，通过对所采集的上、下游流动噪声信号进行相关分析，其互相关函数的峰值位置所对应的时间，为流体流过上、下游传感器之间的距离所用时间，进而计算出流速和流量。

The optimal collocated positions of secondary source with two microphones are studied and the separate of transfer function method that reduce the influence of acoustic feedback are developed based on plane wave transmission theory of sound and concept of transfer function in a duct. After, In order to identify the variation of the signals and find out individual correlation coefficient, cross correlation function analysis between primary noise signal and reference input signal is processed.

本文根据管道声场的平面波传递理论，进行第二声源与两个感测麦克风之间的位置配置研究，配合数位讯号处理的技术，发展出转移函数分离法，以消除声场回授的影响，之后，再将使用和未使用转移函数分离法的讯号个别与主要噪音源讯号做交互相关函数的运算处理，辨识讯号之间的差异，找出个别的相关性系数。

On this basis, combing characteristics of the agricultural post-graduates job market, stating with the internal and external factors that agricultural graduate students employment faced in the new period , the writer analyzed and summarized the main and direct factors impacting agricultural post-graduate employment trends in Hubei Province which are the employer-oriented factor , employed Agricultural Science Graduates\' judge factor , and post-graduates employment intention factor, and made comparative analysis, cross analysis, correlation analysis and correlation analysis on related data of these three closely research object.

在此基础上，结合农科研究生就业市场自身特点，从新时期农科研究生就业所处的内外部因素入手，分析并概括出影响湖北省农科研究生就业趋势的主要直接因素分别是用人单位取向因素、已就业农科研究生裁判因素和在读研究生就业意向因素，并将这三个互为密切的调研对象的相关数据进行比较分析、交叉分析、关联性分析和相关分析。

The results showed that the correlation coefficient of cross validation, the RMSECV, and the correlation coefficient of external validation are 0.904, 0.988%, and 0.987, respectively.

结果表明，用NIRS 法得到的预测值与用凯氏定氮法得到的测定值间的交叉验证决定系数R2cv为0.904，交叉检验标准误差RMSECV为0.988，外部验证的相关系数为0.987。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了