compressional wave front

And two kinds of tunnelhood are studied to investigate the formation of the compression wave front at the tunnel entrance.

对高速列车突入单线隧道 缓冲结构物体系的空气动力学进行了研究,采用有限体积法进行区域离散,控制方程为三维粘性、可压缩、不等熵、非定常流的Navier Stokes方程,并引进了两种形状的缓冲结构物以了解在隧道入口压缩波前的形成。

Wavelet Compression Based Wireless Net Video Surveillance System;

基于小波压缩的无线网视频监控系统

And we get different compressed signals with the selected wavelet basis by 2-layer wavelet compression of THz signal.

本文中,首先基于THz信号的特点及其压缩要求引入了四种评估方法,然后分别在频域和吸收谱域上利用这四种评估方法对小波压缩结果进行评估,根据两个域上的不同评估结果可以验证,在吸收谱域上对THz压缩信号进行评估是必要的和适用的。

For the purpose to obtain better results of qualitative analysis and reduce the input dimension of the network, the wavelet compression is adopted to pretreat the complicated spectra data and establish the tobacco classification model though SVM.

为了获得更好的定性分析结果并且简化网络输入维数,首先利用小波压缩对复杂光谱数据进行预处理。

Parallel algorithm for image copression and decompression based on EZW

嵌入式零树小波压缩和解压缩的并行化算法

The Using of Wavelet Function for Picture Compression and Decompression;

应用小波函数对图像进行压缩和解压缩

Based on Image Compression Wavelet Transformation’s Wavelet Base Choice Research

基于图像压缩的小波变换中小波基选择研究

The Application of Wavelet analysis and Wavelet Packet in Image Compression

小波分析和小波包在图像压缩中的应用

SAR Raw Data Compression in Wavelet Domain

小波域的合成孔径雷达原始数据压缩

Color Image Compression Using the Wavelet Analysis

一种使用小波分析的彩色图像压缩法

A Study on VLSI Architecture of Image Sequence Coding Based on Wavelet;

小波序列图像压缩编码VLSI结构研究

Compression of Multispectral Remote Image Based on Wavelet Transform;

基于小波变换的多光谱遥感图像压缩

Research on Image Compression Based on Wavelet and Fractal;

基于小波和分形的图像压缩算法研究

UAV Reconnaissance Image Compression Based on Wavelet Transform;

基于小波变换的无人机侦察图像压缩

Research and Implementation of Image Coding Based on Wavelet Theory;

基于小波理论的图像压缩研究与实现

The Study of Image Compression Based on Wavelet Transform;

小波变换在图像压缩方面研究及应用

Low Bit-rate Video Coding Algorithms Based on Wavelet Transform;

基于小波变换的低码率视频压缩技术

Research on JPEG Compression Arithmetic Based on Wavelet Transform;

基于小波变换的JPEG压缩算法研究

Research on Image Compression Based on Wavelet Transform;

基于小波变换的图像压缩算法的研究

Speech Compression Based on Best Wavelet Packet Analysis;

基于最佳小波包分解的语音压缩研究

The Research on Image Compression Technology Based on Wavelete and Fractal;

基于小波与分形的图像压缩技术研究

Research of the Still Image Compression Algorithm Based on Wavelet;

基于小波的静态图像压缩算法的研究