查询词典 transform

After analyzing the limitation of slow convergence in adaptive Least Mean Square algorithm, it is brought forward the method of transforming signal into frequency domain, taking advantage of the orthogonality of discrete Fourier transform, the adaptive LMS filter is performed for each frequency element in transform domain.

四川大学博士学位论文在频域自适应滤波的基础上，提出了一种权值反馈方法抑制图像传输中的多个大功率平稳强窄带干扰信号，不仅能加快算法的收敛性能，并具有良好的滤波效果。

Convex body; star body; cross i-section; Firey projection; Radon transform; Fourier transform of distribution; generalized intersection body; dual mixed volume; embedding in L_p

基础科学，数学，几何、拓扑凸体；星体； i-维中心截面； Radon变换；分布的Fourier变换；广义截面体；对偶混合体积；等距嵌入L_p

According to induced response method, the expression in frequency domain of pressure response at the end of pipeline is derived using impulse response method and convolution theorem. The expression indicates that that transfer function is only related to the characteristics of pipeline system and the Fourier transform of flow variable only depends on the operating characteristics, and the pressure response in frequency domain is linear with the Fourier transform of flow variable.

基于激励响应法，应用脉冲响应方法和卷积定理得出了管道末端压力响应在频域中的表达式，此式表明：传递函数只与系统的特性相关，流量变量的傅立叶变换只与操作特性相关，且压力频域响应与流量变量的傅立叶变换为线形关系，根据此式在理论上能够得到管道泄漏点的重要信息。

In this paper a method based on discrete wavelet transform and discrete cosine transform is presented to compress color image.

中文摘要：本文给出了一种基于离散小波变换和离散余弦变换的彩色图像压缩方法。

Prepared by the images of discrete cosine transform and wavelet transform the source code can run.

Visual C++编写的图像的离散余弦变换和小波变换的源代码，可直接运行。

A digital watermarking algorithm is proposed based on Discrete Cosine Transform and Arnold transform.

提出一种基于离散余弦变换和Arnold变换的数字水印算法。

Detection and analysis of power quality disturbances signal based on discrete cosine transform and wavelet transform.

基于离散余弦变换和小波变换的电能质量扰动信号检测方法。

Discrete Cosine Transform has become one of the widely used transform techniques in digital signal processing.

离散余弦定理已经成为数位讯号处理中被广泛应用的转换技巧之一。

Experimental results show that the discrete generalized cosine transform is helpful for transform coding in triangular domain.

实验表明，离散广义余弦变换对于光滑的三角采样数据具有良好的去相关作用。

A new and efficient geometrical correction algorithm is proposed for MODIS IB data, and possesses of the merits of forward mapping and inverse mapping algorithms; 3. Algorithms to remove stripe noise in MODIS IB data are developed, including Fourier Transform, Wavelet Transform and interpolation method; 4. MODIS data composite algorithm is developed, and a 16-day composite map covering entire China and its outward is produced.

本文介绍了开发MODIS数据基础处理软件的基本算法和成果，主要包括：(1)用C++语言开发和实现了MODIS数据基础处理软件；(2)研究和发展了一个普适的、全新的、兼有前向映射和后向映射优点的MODIS 1B数据几何纠正算法；(3)研究和实现了MODIS条带噪声消除算法，包括傅立叶变换、小波变换和插值三种算法，并对其进行了比较；(4)研究和实现了MODIS影像合成算法，并在此基础上完成了中国及周围地区16天MODIS彩色影像和植被指数的合成。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。