查询词典 partial correlation coefficient

A novel method that can identify moving status of birds accurately was proposed. The method can search the cross correlation coefficient of two neighboring high- resolution range profiles with advance-retreat method in spectrogram, based on the principal of generating micro-Doppler effects with the frequency-stepped chirp radar and characteristics of birds.

基于线性调频步进体制雷达微多普勒效应的产生原理，在距离一慢时间谱图上，针对鸟类目标特性，通过对精高分辨距离像进行分析，提出了一种利用进退法搜索相邻精高分辨距离像的互相关系数的方法来判别鸟类目标运动状态。

Based on cross correlation coefficient and absolute difference algorithm s and the principle of Hartmann Shack wavefront sensor, the feasibility of correlating Hartmann Shack wavefront sensor used for low contrast and extended object is studied according to the indoors solar granulation simulator.

基于互相关因子和绝对差分算法以及哈特曼夏克波前传感器的基本原理，根据室内模拟太阳米粒结构研究了低对比度扩展目标情况下应用相关哈特曼夏克波前传感器探测波前误差的可行性。

In this dissertation, based on the extraction of meaningful polarization information, the polarimetric speckle reduction, polarimetric contrast enhancement, polarimetric classification and ship detection in polarimetric SAR images are systemically studied. During the study, some new concepts and methods are introduced, which are supported by the application to measured Pol-SAR data. The innovations of this dissertation are as follows: 1 A simplified schem is proposed to reduce the complexity of scattering-model-based speckle filtering. 2 Extend the expression of polarimetric correlation coefficient to help distinguishing targets. In addition, introduce the quantized parameters of polarimetric signature so as to show the differentiae in quantity in co-polar power, cross-polar power and shapes of polarization signatures among targets. 3 Define a new parameter of difference degree between targets, which can be used for express the difference between both coherent and distributed scatters.

论文在较系统的研究目标特征量提取方法和特征量所包含的物理意义的基础上，对极化SAR图像降斑、极化对比增强、极化SAR图像分类以及极化SAR图像中海上舰船目标检测等方面进行了研究，并提出了一些新的概念和方法，对实测数据的处理结果表明，这些新的概念和方法对于极化SAR信息处理是有效的，本文的主要创新成果包括以下方面： 1）针对基于预分类的MMSE极化降斑方法实现过程非常复杂的问题，提出了简化方案，并验证了方案的有效性； 2）扩展了极化相关系数的表示方法，这种扩展增强了极化相关系数对目标的区分效果；另外还提出了极化特征图量化参数，可以从量上表征不同目标间相同极化和交叉极化的回波功率差异和极化特征图形状差异； 3）定义了目标间的差异度参数，它不仅可以用于描述相干目标，还可以用于描述分布目标的差别程度。

The diffusive mass transfer coefficient conformed to Arrenhenius correlation with feed temperature and was independent of the flow status.

膜内的扩散传质系数与膜面的流动状况无关，与温度的关系服从Arrhenius函数关系。

By the EEOF analysis of subsurface ocean temperature anomaly in the equatorial Pacific Ocean, It is founded that, the first eigenvector is the mode about El Nino and it reflects the entire generation, persistence and diminishment process of El Nino phenomenon, there is good contemporary correlation between the corresponding time coefficient and the Nino3 index.

本文通过对赤道太平洋次表层海温距平场的EEOF分解，发现第一特征向量是关于El Nino的模态，它反映了El Nino的发生持续消亡的整个过程，对应的时间系数与Nino3指数有很好的同时相关。

Methods:a solid-phase extraction and gas chromatography-mass spectrometry procedure for the simultaneous detection of tramadol and its main metabolite in urine has been developed.results:the linearity of the tramadol solution from 0.1 g/ml to 100 μg/ml is fine ,and correlation coefficient is 0.9957.the average recovery was 99.21%,and the relative sandard deviation was 2.83%.conclusion:it is a rapid,simple,accurate and sensitive method.it is also an effective method for rapid detection whether there is tramadol in urine of druggy.

采用c18固相萃取法对尿中曲马多原体及其主要代谢物进行提取，利用gc-ms对其进行检测。结果：线性范围为0.1~100μg/ml（r=0.9957，n=6），平均回收率为99.21%，相对标准偏差为2.83%，最低测量限为 0.1 g/ml 。结论：本实验研究建立了尿中曲马多及其代谢物的快速、简便、准确、灵敏的检测方法，可作为快速检测吸毒人员尿中是否含有曲马多的一种有效的方法。

An adaptive,efficient unbiased estimator of Hurst index based on the lifting scheme for wavelet transform and correlation coefficient is presented.

对局域网和广域网上大量突发网络流量的分析结果表明，网络流量普遍存在着自相似性和长相关性，其中赫斯特指数是表征网络流量突发性的重要参数。

In addition, we also use other advanced econometrics methods such as recursive forecast error variance and non-parametric correlation coefficient tests.

此外，本文还采用了递归方差分解分析、非参数相关性检验等一系列较为前沿的计量经济学方法。

The correlation coefficient between FRAP reducing power and monomeric ACN was determined to be 0.95 before heating.

由於花青素单体与花青素裂解指数，呈显著负相关（相关系数-0.99），因此单体可用以印证花青素色泽之维持。

The six species of bats includes Myotis frater,Ia io,Myotis myotis luctuosus,Myotis daubentoni,Myotis fimbriatus and Murina leucogaster.Pearson coefficient (one of correlation analysis methods in SPSS10.0 software)has been adopted to analyze the interspecific relationship between the dominant frequency and body size.

测定了6种蝙蝠科蝙蝠：长尾鼠耳蝠、南蝠、大鼠耳蝠、水鼠耳蝠、毛腿鼠耳蝠、白腹管鼻蝠的回声定位声波特征及体型参数。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。