The Window functions of biorthogonal cosine wavelets are discussed.
余弦小波适合于拟合、模仿和合成，常应用于语音分解和合成，对象分类和识别等，本文讨论双正交余弦小波的窗口函数，建立具有重叠窗口的余弦小波的双正交性和Parseval等式。
The method uses the cosine filter(CF)and amplitude-frequency coefficient correction to filter out the real part of a phasor at the present sampling,and the imaginary part of the phasor at the a-quarter-period-before sampling.
提出了一种电流电压相量的计算方法,其特征为利用余弦滤波器滤出的当前点和前推1/4周期后的点分别经幅频特性系数修正后作为相量的实部和虚部。
In this paper,the wavelet analyses of ring laser gyro drift rate were implemented based on the Mallat algo- rithm in the wavelet analysis,the design of cosine filter is discussed.
在简述小波分析中 Mallat 算法的基础上,用其实现激光陀螺仪漂移特性的小波分析,讨论了余弦滤波器的设计。
Considering the nonlinear feature of wave in shallow waters,the cnoidal wave theory is used to calculate the wave force for submarine slope stability.
针对浅水区波浪的非线性特性,提出了在海底边坡稳定性分析中应用椭圆余弦波理论来研究波浪力的问题,利用非线性弥散关系建立了新的适用于整个水深范围的椭圆余弦波的近似求解方法。
The velocities in the oscillatory boundary layer due to linear and cnoidal waves are simulated based on the incompressible D2Q9 model of the Lattice Boltzmann Method.
将波浪作用下的振荡边界层问题化为振动平板边界层问题,利用格子Boltzm ann方法中不可压缩的模型模拟了线性波和椭圆余弦波作用下的层流边界层流速变化,并和理论解进行了比较。
The problems of diffraction on porous multiple vertical cylinders by nonlinear water waves,such as cnoidal wave,solitary wave and second order Stokes wave,are analyzed.
分析了椭圆余弦波、孤立波以及STOKES二阶波对可渗透圆柱群结构的波绕射问题,给出了各类波对结构的绕射势解及STOKES二阶波对结构绕射作用的积分解式。
Numerical solutions of the equations with the internal generation of sinusoidal and cnoidal waves confirm this finding.
域内生成正弦波和椭圆余弦波的数值试验结果证实了该结论。
The bottom boundary layer under cnoidal waves was studied by using Acoustic Doppler Velocimeter(ADV) technique in a laboratory flume.
通过波浪水槽试验,利用ADV测量椭圆余弦波作用下不同底床情况,垂线上各点的瞬时流速。
It is well know that the Boussinesq equations, which govern the fluid motion in shallow-waters of constant depth, have analytical solutions of both cnoidal waves and solitary waves.
众所周知,该方程有行进波解(孤立波及椭圆余弦波)。
An Investigation of the Characteristics of Flow Field over Sand Bed under Cnoidal Waves;
椭圆余弦波作用下沙质床面流动特性研究
The Design of Sub-band Filter Banks Based on Cosine-Modulation;
基于余弦调制的子带滤波器组的设计
Design and Implementation of Cosine-Modulated Analysis Filter Banks;
余弦调制分析滤波器组的设计与实现
Study on the Design and Applications of Cosine Modulated Filer Banks
余弦调制滤波器组的设计及应用研究
Design Algorithms of Two-dimensional NPR Cosine Modulated Filter Banks
二维NPR余弦调制滤波器组设计算法
The Theory of 2-D Cosinusoidal Phase-Modulated Repeater Scatter-Wave Jamming to SAR
SAR二维余弦调相转发散射波干扰原理
Cosine Basics Neural Networks Based FIR Filter Design
基于余弦基神经网络的FIR滤波器设计
An analytical solution of the Boussinesq equations for the second-order cnoidal standing waves
Boussinesq方程的二阶椭圆余弦驻波解
New Soliton Solutions and Periodic Wave Solutions with Cosine Function Form for the Generalized Pochhammer-Chree Equation
广义Pochhammer-Chree方程的新孤波解和余弦周期波解
Let's now examine the simplest wave form where the profile is a sine or cosine curve
现在让我们来考察最简单的波形，它的剖面图是正弦或余弦曲线。
A WPT and DCT Based Bi-watermarking Algorithm
基于小波包变换和离散余弦变换的双水印算法
Video Image Compression Based on Wavelet and 3-D DCT
基于小波与三维离散余弦变换的视频图像压缩
Application of the Cosine Window Function in the Plane Wave Synthesis Technique
余弦窗函数在平面波综合技术中的应用
Cascade Filter of Speech information Hiding in Fractional Fourier Transform Domain
分数余弦变换域上的语音信息隐藏级联滤波
Parallel Square Root Raised Cosine FIR Filter Design in UWB
应用于UWB系统的并行根升余弦滤波器设计
FPGA Implementation of Rcos-filter Based on Multi-rate DA
基于多速率DA的根升余弦滤波器的FPGA实现
Waveform Interpolation Speech Coding Based on DCT
基于离散余弦变换的波形内插语音编码算法
Implementation of the raised-cosine filter based on FPGA in POF communication
塑料光纤通信中基带升余弦滤波器的FPGA实现