查询词典 wavelets

The multi-wavelets functions are supported on [-1, 1], and one wavelet function is symmetric, the other is anti-symmetric.

所以，可以由这两个尺度函数构造一类多小波函数，这类多小波函数不但在[-1，1]上具有紧支撑性，而且一个小波函数具有对称性，另一个小波函数具有反对称性，因此这种紧支撑多小波函数适用于区间[0，1]。

Butterworth wavelets have nice properties which include symmetry,the interpolation and vanishing moments.

Butterworth小波具有良好的性质(对称性、插值性和消失矩)。

This paper, based on the secong approach, presents a new efficient algorithm to design symmetric bi-orthogonal M-band wavelets with arbitrary regularity by using Grobner basis and syzygy module algorithm in computing algebra, which bi-orthogonalizes the polyphase matrix line by line.

本文基于第二种思路结合计算代数中Groebner基和合冲模的思想和算法提出了一种同时具有任意正则阶和线性相位性质的M带双正交小波的新型高效构造算法，其中采用多相位矩阵逐行双正交化的方法。

We present a method to design symmetric orthogonal M-band wavelets with arbitrary regularity by using Grobner basis and syzygy module algorithm in computing algebra to orthogonalize the polyphase matrix.

通过引入计算代数中Grobner基以及合冲模的相关算法，提出对多相位矩阵进行正交化，从而得到了同时具有对称性和任意正则阶的M-带正交小波的高效设计方法。

Computed with data produced by a traffic simulation system, a minimal cycle under simulation is concluded In view of the situation that short-term traffic flow is disturbed more tempestuously, the multiresolution decomposition and reconstruction method of wavelets is introduced to construct a muliresolution time-series forecast model.

与一般交通管理中的仿真系统相比较，本文研究中所使用的仿真系统是一种基于车辆的交通流微观仿真系统，克服了宏观仿真过于简单、笼统的不足；在交通流的处理过程中，建立应用了多种描述不确定性的模型，比较真实地再现了路网上交通流过程；从实现手段上，仿真系统采用了面向对象的分析设计方法，使系统具有良好的结构和较强的可扩充性、适用性。

Unfortunately, the variables of the tensor multiplicative wavelet function are separable, and wavelets analysis is often fail when it is used to represent the higher sigularities.

小波变换是目前已知的对信号\函数的点奇性进行描述的最好工具，但对于高维奇性，可分离变量的张量积小波分析常常会失效。

He looked uncomprehendingly at the fish-scale-sized corrugations on the surface of the water as the tiny, clear wavelets of the Yongding River lapped monotonously on the grey shore.

他不能理解地瞧着水上的鱼鳞细浪，永定河的一弯清波正在灰色的沙滩上拍响着单调的哗哗声。

Chui and Chun Li studied the construction and decomposition of wavelets in the space of bounded uniformly continuous functions on R.

相关的插值多分辨分析概念，给出了R~2上有界一致连续函数空间的稳定的小波生成元的构造。

Based on analyzing and comparing the constringent performance of CDF(2,2) and FBI9-7 wavelet, we verify that "there is no wavelet that consistently performs better than all the other wavelets on all the test images."

并通过在自适应算术编码前，重组SPIHT算法后的码流，使本方案中的图象压缩比有进一步的提高。

This paper researches the wavelet transform of discrete-time sequences basing on dendriform filer banks in the signal processing field, analyses the theory and design method of two channel conjugate quadrature mirror filter banks and fast implement of discrete orthogonal wavelet transform and generation of orthogonal wavelets, and points out the internal relationship between them.

笔者从信号处理的角度研究了离散时间序列的小波变换利用树状滤波器组实现的方法，分析了两通道共轭正交镜象滤波器组理论及滤波器设计，离散时间序列的正交小波变换的快速实现以及正交小波的构造，指出了其内在联系，最后举例说明了正交小波变换通过共轭正交镜象滤波器组来实现信号分解和重构的全过程。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。