查询词典 spectral function

Random matrices; empirical spectral distribution function; Stieltjes transform; convergence rate; factor model; time series

基础科学，数学，概率论、数理统计随机矩阵；经验谱分布； Stieltjes变换；收敛速度；因子模型；时间序列

Using the theories of probability, algebra, logical function in cryptology and spectral theory comprehensively, the dissertation investigates the properties and constructions of orthomorphic permutations, omni-direction permutations, quick trickle permutations and generalized orthomorphic permutations.

分组密码是现代密码学中一个重要的研究分支，而置换理论在分组密码中占有重要的地位，任何没有信息扩张的密码体制都可以看作是置换的结果，如数据加密标准DES可以看作是明文在密钥控制下的置换，公钥密码体制RSA可以看作是一种多项式置换，因此，研究置换的有关性质和构造具有重要的理论意义和应用价值。

The earthquake ground motion is modeled as a twice filtered Gaussian white noise process, and the parameters of the power spectral density function of the process are determined.

将地震地面运动模拟成两次过滤Gauss白噪声过程，并确定了这一过程的功率谱密度函数的参数。

Firstly, a generalized spectral dyadic Green's function formulation of multidielectric-layer structures is derived with three dimension sources, which is a set of closed form formulas, and is different from available iterative expressions for two dimension source.

论文从理论和实验上系统地研究了多介质层单频和双频微带天线，推导出新的理论计算公式，提出有效的数值计算方法，研制出新型式的双频微带天线，得。。。

The properties of fermion causal Green's function is discussed according to the theory of spectral representation.

本文叙述了对称型GaAs-GaAlAsP双异质结激光器偏振特性的实验研究，分析了这种半导体激光器的模式竞争过程。

Unique spectral interference function deducted resolved ICP-OES analysis of complex sample matrix interference in the spectrum of problem

独有的扣除光谱干扰功能，解决了ICP-OES分析复杂基体样品中的谱线干扰问题

This paper analyzes irrational number series of square root of 2 and e in six aspects involving autocorrelation function,Power Spectral Density,phase space construction,correlation dimension,Principal Component Analysis and maximal Lyapunov exponent.

将已提出的π序列定义和分析方法推广到无理数领域，引出了无理数序列，并以常用的无理数根号2、e为例，对无理数序列的自相关、功率谱、相空间、关联维数、最大Lyapunov指数和主分量等6个方面进行深入分析。

Utilizing Multivariate Regression Modeling and Spectral Derivative to establish five function pattern cotton dry matter accumulation modeling based on Ratio Vegetation Index and Normalized Difference Vegetation Index,all correlation coefficient is highly positive(α=1%,n=96),based on RVI modeling has a higher precision than NDVI does,hyperbolic curve fitting,exponential curve fitting and logarithmic curve fitting have further improved analysis against cotton dry matter accumulation.

利用北疆8个棉花主栽品种(其中2个棉花品种设4水平种植密度)的各生育期冠层高光谱数据，经多元统计分析与光谱微分处理，建立了基于比值植被指数和归一化植被指数的5种函数形式的棉花干物质积累估测模型，相关系数均达到了极显著水平(α=1%，n=96)。

Various spectral-temporal cues extracted from the model are used for monaural speech segregation. Then, a self-organizing feature map neural network is utilized to mimic the neural function in segregating and clustering a mixed sound into separated sounds.

我们从此模型中取出不同在时域-频域上的一些使用於单耳语音分离系统的线索，之后，利用自组织映射图来模拟神经元将混合的语音分组和归类成分开的语音。

The normal calculation methods are polynomial fitting and spectral response function fitting.

计算扫描颜色通常可以用多项式曲线拟合法和光谱响应计算法。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。