Digital correlation method combined with statistical analysis was applied to pick up the characteristic information of the crack in electric power locomotive electrode , by which crack was identified successfully 以电力机车主极为研究对象,将数字测相法和统计分析相结合提取主极裂纹的特征信息,并成功用于识别主极上有无裂纹。
Applying the grey correlation methods , this paper analyzed the correlation of slaking durability and granularity fractal characteristics of red bed weak rock as well as the experimental data of mineral and chemical component 摘要采用灰色关联度法对红层软岩的粒度分形特征以及矿物、化学成分试验数据与其崩解性进行了关联分析。
This paper correlates the source rocks with biology marks in natural gas formation asphalt by adopting indirect correlation method , recognizing that deep natural gas mainly comes from jurassic and denglouku formations 本文采用间接对比法,将源岩与天然气储层沥青中的生物标记物进行对比,认为深层天然气主要来自侏罗系和登娄库组地层。
By combining the macroscopic distributions and microscopic seal - mechanism of capping rocks and educating these parameters by using of grey correlation method , a series of reasonable capping layer evaluation standards has been set up 结合盖层宏观展布、微观封闭机理,利用灰色关联法处理这些评价参数,建立起一套较合理的盖层评判标准。
After that , it discusses the capture and tailing method for the false random code spreading code , including correlation and non - correlation method . between the two method , the correlation method is fit for the wireless communication 接下来讨论了伪随机扩频码的捕获和跟踪方法,包括相干的方法和非相干的方法,其中非相干的方法更适合用于无线通信中。
First of all , three de - correlation methods are introduced for the purpose of deducing the correlation between the direct signal and the reflected one . then one of them is combined with classical music algorithm to do doa estimation 为了减小直达信号与反射信号间的相关性,先介绍了三种去相关的方法,再采用其中一种方法结合经典的music算法来做doa估计。
A method of the projection and correlation method is used in identifiving the plate character . two important subsystems of lpr are considered in chapter three and chapter four separately : plate character isolation & recognition 而车牌自动识别技术在国际上尚处于研究阶段,已能在实验室实现,并且效果良好,但还缺少实际应用的考验,有待进一步的研究和应用。
In the image analysis chapter , the author has made a contrast between the three methods : crossing correlation method , hough transform and scale - space technology . the differences between wds and foreign tools are clear in image analysis technology 在图像分析部分,对相关对比法、哈夫变换、尺度空间技术进行了比较分析,从而清楚地看到wds与国外同类仪器的差距。
Chapter 7 introduces and analyzes some timing error detection and feed - forward timing recovery algorithms for gmsk signal . the auto - correlation method is improved by using a post - filter . simulation results show that the improved method has better estimation accuracy 首先分析比较了常见的gmsk符号同步的定时误差检测器算法和前向定时参数估计算法,并用后滤波的方法对定时参数估计的自相关法提出了改进,提高了算法的估计精度。
Both ratio of average ( roa ) and cross - correlation method use local statistics to judge road . they perform good detection while smoothing speckle . moreover , they both have constant false alarm rate ( cfar ) which is important in radar target detecting 本文所采用的均值比例算子和互相关算子利用图像局部的统计信息进行判决,在检测道路基元的同时对图像进行局部平滑以降低相干斑干扰;并且两个算子都具有恒虚警特性,门限值由给定的虚警概率确定。