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fractal parameter
相关语句
  分形参数
     Stochastic noises in FOG mainly consist of fractal (1/fγ) noises and white noises,and the problem of estimating parameters of stochastic noises in FOG is to estimate fractal noise level,white noise level and fractal parameter.
     光纤陀螺随机噪声主要包括1/fγ分形噪声和白噪声,估计光纤陀螺随机噪声的参数就是估计分形噪声的强度、白噪声的强度以及分形参数
短句来源
     In 1992, Wornell and Oppenheim first obtained the maximum Likelihood (ML) estimatorof the 1/f -type fractal parameter β ,σ2and σ w2 in noise, however ML iterative algorithm is ofextremely complexity and receives the influence of the range of the spectrum exponentγ( γ ∈(0,1)). Moreover this algorithm is not suit for the excellent model of fractal signal, i.e.the fractional Brownian motions (FBM).
     1992年,Wornell和Oppenheim首先获得了噪声中1/f类分形参数β,σ2和σw2的极大似然(ML)估计算法,然而ML迭代算法极为繁复,并且受到谱指数γ范围(γ∈(0,1))的影响,该方法对分数布朗运动(FBM)这种分形信号的优良模型并不适合。
短句来源
     Fractal Theory and Calculation Method of Fractal Parameter
     分形理论及分形参数计算方法
短句来源
     The relation between the performance of balance of the sequence and fractal parameter, initial value, the period of sequence is analysed thus pvoviding a reference basis for frequency spread seguence selecting the chaotic.
     从二相混沌扩频序列平衡性与直扩系统对载波抑制度有密切关系、扩频序列不平衡将使系统载波泄漏增大的角度出发 ,分别分析其平衡性与分形参数、初始值、序列周期的关系 ,并且进行比较 .
短句来源
     Based on the Warren-Root model,introducing fractal parameter and deformable coefficient and considering the effect of pressure on permeability and porosity,we construct a seepage flow model for pressure-sensitive deformable double media fractal gas reservoirs.
     以Warren-Root模型为基础,引入分形参数和压缩系数,考虑压力对具有分形特征的渗透率和孔隙度的影响,建立变形双重介质分形气藏渗流数学模型.
短句来源
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  分形参数的
     An adhesive wear model based on fractal parameter is derived on the grounds of adhesive wear theory by modifying the M-B fractal contact model.
     在对M-B接触分形模型改进的基础上,根据阿查得粘着磨损理论导出了基于分形参数的粘着磨损模型。
短句来源
     The abrasive wear model based on fractal parameter, which establishes the relation of wear rate to the fractal dimension and synthetically reflects the wear regularity and surface characterization of materials, is derived by the M - B fractal contact model and on the basis of the plastic deformation wear theory.
     本文在M-B接触分形模型的基础上,根据塑变磨损理论导出了基于分形参数的磨粒磨损模型,建立了磨损率与分形维数之间的关系,综合反映了材料的磨损规律和表面特性。
短句来源
     A general conclusion that the Hparameter estimated in two different textures boundary is greater than 1 is proved which based on fractional Brownian random field model, Hparameter is generalized for the description of image properties and a method for edge detection is proposed based on generalized multiscale fractal parameter.
     本文从分数布朗随机场模型的描述出发,证明了具有不同分形特性的两种纹理边缘处的H参数估计值大于1的一般结论、将H参数泛化用于描述一般图像的特性,从而提出了一种基于广义多尺度分形参数的图像边缘检测方法.
短句来源
     In this paper, a method based on DFBIR image model is presented, which can calculate the fractal parameter of irregular regions automatically and without damage, so that it provides a new quantitative method for the analysis of material images.
     本文提出了基于离散分形布朗增量随机(DFBIR)场图象模型的无损、自动地求取不规则区域的分形参数的方法,从而为材料图象的分析提供了新的定量化方法
短句来源
     The paper put forward segmentation method of wood surface disfigurement based on fractal parameter and the adjunction of spring and mass of matrix directing at disadvantages of segmentation method of traditional surface disfigurement and calculation methods of fractal parameter.
     论文主要针对传统表面缺陷分割方法的不足,提出了基于分形参数的木材表面缺陷分割方法,并针对分形参数计算方法的缺点做了相应改进,提出了增容矩阵的计算方法。
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  “fractal parameter”译为未确定词的双语例句
     Estimation of the fractal parameter from noise data using wavelet
     小波变换在分形信号参数估计中的应用
短句来源
     This paper aims at, by analyzing log's X-ray image and basing on Brown's random field model, finding out a quick calculation method of Fractal parameter H. And after applying the method to calculate the log X-ray image's Fractal parameter H, joining the abnormal points, the defected boundary of the image is found.
     本文针对原木X射线图像,根据分数布朗随机场模型推导出其H参数的模板快速计算方法,通过该方法逐点计算出原木X射线图像的H参数后,将所有的奇异点连接起来,就是图像中缺陷的边缘。
短句来源
     By comparing the quantized Julia image block with the block from the original image,a block whose distance is the minimum in Hausdorff measurement is chosen and its corresponding fractal parameter is saved.
     编码时,将量化后图像Julia块与原图中的图像块进行比较,寻找最适合的量化表和距离最小的Julia图像块.
短句来源
     After processing original data, characteristics were extracted using four kinds of methods. These characteristics include tabulated data extracting from pattern, statistics, fractal parameter using gridding methods and moment features.
     本文采用四种方法对实验获取的局部放电样本提取了局部放电的特征量,主要提取了局部放电的三维谱图表列数据、统计特征、分形特征和局部放电灰度图象的矩特征这四种特征量。
短句来源
     1) The problem of estimation of fractal parameter is studied and several commonmethods arc discussed.
     1)研究了分形信号的参数估计问题,首先研究了在纯信号情况下分维值的提取方法。
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  fractal parameter
It was observed that the scale dependent fractal parameter, Kv, plays a more prominent role than the fractal dimension, Da1d, on determining the anisotropy pattern of aperture data.
      
A scale dependant fractal parameter, Kv, seems to play a prominent role than the fractal dimension, Dr1d, with respect to quantification of roughness of natural rock joints.
      
Images were obtained on os calcis; then, three texture parameters were calculated on the same region of interest (ROI): a fractal parameter, a run-length parameter, and a co-occurrence parameter.
      
Based on a stepwise regression analysis, trabecular spacing and trabeculae number together would explain 38% of the variance of the fractal parameter.
      
This analysis provides complementary information concerning the BMD and fractal parameter.
      
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Based on a model for the fractal Brownian motion,the relation between the fractal pa-rameter and the morphology of material surface has been experimentally studied.Resultsshow that the fractal parameter can describe the undulation of 3-D surface morphology and itis an ideal parameter for measuring the surface morphology of spheroidal graphite under highdegree of spheroidization,By a multifractal analysis,the fractal parameter can show subtledifference in the fracture surface of ductile cast...

Based on a model for the fractal Brownian motion,the relation between the fractal pa-rameter and the morphology of material surface has been experimentally studied.Resultsshow that the fractal parameter can describe the undulation of 3-D surface morphology and itis an ideal parameter for measuring the surface morphology of spheroidal graphite under highdegree of spheroidization,By a multifractal analysis,the fractal parameter can show subtledifference in the fracture surface of ductile cast iron of different impact toughnesses.

以分形布朗运动模型为基础,试验研究了分形参数与材料表面微观形貌之间的关系。结果表明:分形参数可以反映三维表面微观形貌的起伏程度,它是度量高球化级别的球墨表面形貌的一个理想参数;采用多尺度分形方法,分形参数可以反映不同韧性的球墨铸铁断口微观形貌的细微差别。

This paper has studied the fracture features of the specimens of functionally gradient material Al-Fe alloy with the different sections.Based on Descrete Fractal Brownian Random model,the fracture has been studied by using the method of multiscale fractal analysis.The research results show that the fractal parameter H values of the fracture surfaces are also gradient distributing. It shows that the toughness of the alloy is gradient distributing.

研究了Al-Fe系梯度功能材料的试样不同部位的断口特征;基于离散分形布朗随机场模型,对试样断口进行多尺度分形研究,结果表明断口的分形参数H值也呈梯度分布,它反映了该材料的韧性呈梯度分布。

raditional image matching methods have neither scale invariability nor rotational invariability. A new image matching method based on the fractal characteristics is proposed. With scale invariability and rotational invariability of the fractal parameters, the method is good for resisting geometrical deformation and noise. The computing efficiency is improved because of the adoption of thesegmentation, sequential test and layered searching techniques. Experimental results show that themethod is worth...

raditional image matching methods have neither scale invariability nor rotational invariability. A new image matching method based on the fractal characteristics is proposed. With scale invariability and rotational invariability of the fractal parameters, the method is good for resisting geometrical deformation and noise. The computing efficiency is improved because of the adoption of thesegmentation, sequential test and layered searching techniques. Experimental results show that themethod is worth recommendation.

利用分形的方法建立了一种新颖的基于分形特征的景像匹配方法.该方法具有良好的抗几何形变能力和较强的抗噪能力.由于利用了分块、序贯检测及分层搜索技术,计算量大为减少,试验结果表明这是一种良好的图像匹配方法.

 
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