查询词典 fractional

The other commonly used method of fractional-N synthesis is to drop an output clock pulse based on some rule derived from a counter state machine.

微少-N 综合的普遍二手方法将降低以起源于一部柜台州机器的一些规则为基础的输出时钟脉膊的另一个。

Objective To investigate the characteristics of fractional anisotropy and apparent diffusion coefficient of association fiber tracts in patients with amnestic mild cognitive impairment, and to assess the application value of diffusion tensor imaging in differential diagnosis of aMCI and AD.

目的 通过磁共振扩散张量成像探讨遗忘型轻度认知障碍患者联合纤维束FA值和ADC值的变化特点，评价DTI对aMCI的诊断及aMCI与AD鉴别诊断的应用价值。

The value of apparent diffusion coefficient and fractional anisotropy were measured.

结果32例脊髓压迫损伤患者中13例可见T2WI高信号。

To calculate any real-order fractional Fouriertransform of a complex valued function, I devised a fast numerical algorithm and testedit with concrete implementation.

为了计算一般函数的任意实数阶分数Fourier变换，提出了一个快速算法及其具体实现，该方法的时间复杂度与一个快速卷积相当。

The new tool shows promising results for applications to machines with fractional slot windings requiring prohibitive amounts of computing resources for time-stepping finite element solutions.

The新工具显示可喜的成果等方面的应用机器分数槽绕组要求过高数额的计算资源时步有限元素的解决方案。

We establish a new observation model of α-stable distribution for low altitude detection. It is very concernment that fractional lower-order statistics based detection and estimation robust approach for radar target signals, so as to perform optimal detection under constant probability of false alarm.

在不同的海况下，由于雷达波在波峰和波谷间的反射以及在波浪边缘的绕射等复杂电磁现象，使得雷达波不仅频谱形状不规则，而且反射单元的概率分布也超出常规，所以必须高度重视海杂波的特性研究，从中找出有价值的参数。

We give strong continuity of an operator connected with fractional power space and obtain existence of optimal controls.

得到了分数指数空间一算子的强连续性和最优控制的存在性定理。

The result verifies that the discrete model with power series direct discretization method requires 100 memory length to obtain the better approximation, while one with continued fraction direct discretization method requires only 10 order. Thus the continued fraction direct discretization method is preferable to digital realization of fractional order control algorithms in engineering applications.

研究结果表明，幂级数直接离散法得到近似离散模型需要记忆长度为100方可获得较好的近似，而连分式直接离散法近似离散模型为10阶时就可以获得较好的近似，因此连分式直接离散法比较适合于分数阶控制算法的实际工程应用。

First,an optimal filtering operator on the continuous fractional Fourier domain is provided according to the orthogonality principle about the linear minimum mean square error estimation,and then,a discrete algorithm of the filtering operator is further proposed.

首先由线性最小均方误差估计的正交条件出发，得到了连续分数阶傅立叶域上的等效Wiener滤波算子的求解方法；在此基础上，进一步给出了滤波算子的离散化算法。

This paper proposes the generalized design method for the perfect reconstruction filter banks in the FRFD based on the FRFD analysis of sampling rate conversion and the fractional convolution theorem, which are the basis of the applications of filter bank theory in the FRFD.

本文从分数阶傅里叶域多抽样率信号处理基本理论和分数阶卷积定理出发，推导出了分数阶傅里叶域准确重建滤波器组的一般化设计方法，为分数阶傅里叶域滤波器组理论在实际工程中的推广应用奠定了理论基础。

Metrorrhagia is also gynaecological problems of common diseases.

崩漏是妇科常见病也是疑难症。

WordFTP gives you the convenience and timesaving you need.

wordftp让您的方便和省时您所需要的。