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- A random signal of known statistical properties of amplitude, distribution, and spectral density. 振幅、分布及谱密度等的已知统计特性的随机信号。
- DFAR had well studied statistical properties, easy-intelligibility and good robusticity. 该方法基于成熟的统计学模型,简单易理解,具有很好的鲁棒性。
- Using statistical method the statistical properties of cascade speckle through two diffusers have been developed. 本文用统计光学方法推导了由两个漫射体形成的串级散斑场的统计性质。
- It is proved to have the same asymptotic statistical properties as the prediction error method(PEM). 证明了该方法与预报误差法具有相同的渐近和统计性能。
- We research SCD model, which is an important extend of ACD model, compare the statistical properties with ACD model deeply. 研究了ACD的一种重要扩展模型: SCD模型的统计特征,如高阶矩的存在条件以及自相关函数的性质,并将其与ACD模型进行了比较。
- Besides,some useful conclusions were given for WLAN location fingerprinting through the comparison of RSS statistical properties. 另外,通过对RSS统计特性的比较,得出一些有益于提高定位精度的结论。
- The local statistical properties of synthetic aperture radar (SAR) image are used in many speckle filtering methods, and a boxcar filter must he used. 摘要许多合成孔径雷达(SAR)图像相干斑噪声滤除方法中都需要用到SAR图像的局部统计特性,这就不可避免地要用到滑动局部窗。
- Numerical stimulations of start2up and statistical properties of SASE FEL.High Power Laser and Particle Beams,2002,14(6):857-861). SASE自由电子激光起振问题及统计特性的数值模拟[J].;强激光与粒子束;2002;14(6):857-861
- The analytic expressions of output functions of GOC and GCO filters with one-dimensional convex structuring elements are derived form the statistical properties of stack filters. 输出的分析表达功能 GOC 和 GCO 过滤器与直线的中凸构成元素被源自形式堆叠的统计财产过滤器。
- Two algorithms of detecting the digital forgeries are proposed in this paper.They are based on the study of some statistical properties of digital images. 本文在对数字图像的一些统计特性进行研究的基础上,提出了两个检测篡改图像的算法。
- Quantum optics is a subject on the coherence properties of radiation field, quantum statistical properties and quantum characters of light interacting with matter. 量子光学是研究光场的相干性和量子统计特性以及光与物质相互作用的量子特征的学科。
- IRT scoring uses statistical properties of items, and the pattern of correct and incorrect responses, to calculate scores representing candidates' knowledge and skill levels. IRT计分系统中使用了各项目(题目)统计特性、正确答题及错误答题的现象,并计算代表考生知识及技巧的程度。
- Methods:This paper studied multi-scale wavelet transform of HRV signal and analyzed the statistical properties of a new measure:the standard deviation of DWT coefficients. 方法:对HRV信号进行多尺度小波变换,用DWT算法进行均方差估计;
- By detailed analysis we mainlystudy the statistical properties of the energy levels of odd-odd nuclei 84Y and ~Nb at lowspins and the effects of the Coriolis force, the recoil term, and the quasiparticle featureson the spectral structure. 研究了A=80号质量区的两个奇奇核~(84)Y和~(86)Nb低自旋能谱随自旋变化的统计规律,以及该理论模型下反冲项(或者称作质子-中子耦合作用)、科氏力作用项和准粒子特征对能谱统计规律的影响。
- An opitical fibre-infrared measuring instru- ment has been developed,the mechanism of grinding sparks and its statistical properties,mathematical model as well as spectral analysis of the sparks temperature system are discussed. 本文提出了通过磨削火花温度在线辨识磨削烧伤,研制了光纤一红外测温仪,对磨削火花温度形成机理,统计特性,数学模型、频谱特性进行了系统的研究。
- The statistical properties of dynamic speckles produced in the Fresnel diffraction field by the rotating cylindrical object considered to be a weak phase screen are investigated in detail. 研究了当旋转圆柱体表面满足弱散射体条件时,在菲涅尔衍射场形成的动态散斑的统计特性;
- Objective To evaluate the statistical property of the estimators on exposure effect and value of propensity score methods in practical use. 目的评价由倾向指数方法得到的暴露效果的估计量和统计性质,并探讨其实用性。
- In terms of the weak point and based on the microporocesses of breakdown,the statistical property is analysed, the Weibull distribution law is derived. 借助击穿弱点的概念,从间隙击穿的微观过程出发,推导了击穿累积概率分布特性,并对理论结果和击穿机理做了分析。
- Jin Yan.High Resolution Range Profile Statistical Property Analysis of Radar Target[C].Proceedings of IEEE 2002 ICSP:1 469-1 472. 邢孟道;保铮.;飞机目标的一维距离像特性[J]