查询词典 linear correlation

Moreover, we prove the linear combination and product measure of probability measures with negative correlation are preserved.

最后证明了具有负相关的概率测度的线性组合及乘积测度仍是负相关的。

Credit matrix and credit correlation matrix were presented. Based on the iteration theories of linear equations, the convergence property of CA-CMAC in incremental learning was analyzed.

然后提出了信任度矩阵和信任度关联矩阵的概念，并根据线性方程组迭代理论，证明了改进算法在增量学习时的收敛性，给出了收敛条件并进行了验证。

Both theoretical analysis and experimental results indicate that the linear dependence of the reciprocal of the time-correlation length on the velocity of the moving diffuser is still held in this case.

理论分析和实验测量结果均表明，这种动态散斑的空-时相关函数与一次散射形成的动态散斑相比，对散射体的运动十分敏感，但其时间相关长度与速度的倒数仍然保持线性关系。

Large rotating machinery ; chaos ; correlation dimension ; non linear fault ; fault diagnosis

大型旋转机械；混沌；关联维数；非线性故障；故障诊断

A good linear relationship meet between fractal dimension and specific surface area of slag powder,and positive correlation with the cementitious properties of steel slag-based cement material.

分形维数与钢渣微粉的比表面积间满足良好的线性关系，并与钢渣基水泥材料的胶凝性能良性相关。

Results There is reverse correlation between the urbanization and cultivated land area, then forming the linear equation.

结果 城市化水平与耕地面积之间存在着极强的负相关关系，并建立了二者之间的线性回归模型。

The results of comparison show that the linear extrapolation of channel-energy correlation is the most accurate calibrating method .

比较结果说明：用道数－能量直线外推法进行刻度最为准确，当能量大于2.0keV时，其能量刻度不确定度小于2%。

The linear extrapolation technique was the most practical and suitable method because of its relative high correlation with a wide range of chlorophyll content, relative simple algorithm, relative high sensitivity to chlorophyll at high or low content and application to more wider bandwidth spectra.

四点线性内插法计算的红边位置往往偏大，最大一阶导数法与叶绿素含量的关系存在着明显的不连续性，拉格朗日内插法、倒高斯模型法在一定程度上存在着对高叶绿素含量的饱和现象，多项式拟合法对拟合波段区间、最高项次及光谱分辨率等比较灵敏而导致结果不够稳定，而线性外推法计算出的红边位置对叶绿素含量最为敏感，预测的准确度最高，且计算相对比较简单，并能适用于较宽波段的遥感数据。

In this thesis, based on a simple piece-wise linear map, a chaotic FH code featuring good balance property, hamming correlation property and large FH span is developed.

众所周知，设计好的跳频码和在混沌跳频通信系统中实现收发双方的同步是很困难的。

Chapter three (the methods of generating chaotic signal and its applications): In this chapter firstly the mechanism that a simple kinetic system, subsection linear map system, can generate chaotic phenomena is affirmed, the characteristics of correlation function of the chaotic signal generated by this system are simulated, on this basis a simple applicable method for generating chaotic signal is given; secondly some typical circuits generating chaotic signal are designed, also use operational amplifier to design a third -order autonomous circuit with chaotic dynamics. The basic mechanism and typical structures of chaos in the application of communication are introduced systematically and a simple method is provided for generating pseudo random code signal; At last Chaotic signal is applied into the analysis of system characteristic.

第三章(混沌信号产生方法及其应用)首先针对一类简单动力学系统——分段线性映射系统能够产生混沌现象的机理及由该系统所产生的混沌信号的自协方差函数特点进行了证明和计算机仿真，提出了软件产生混沌信号的一种实用方法；其次分析讨论了几种能够产生混沌信号的典型混沌电路，提出了用运算放大器与阻容元件实现三阶自治混沌电路的基本原理；概述了混沌在通信领域中应用的基本原理和典型结构，提出了产生伪随机码信号的一种简单方法；最后将混沌信号用于系统的特性分析中。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐