Compression wave

When a high-speed train enters a tunnel, a compression wave is formed ahead of the train which propagates along the tunnel at a nearly sonic speed.

当高速列车进入隧道时,在列车的前部形成压缩波。

To decrease the effect of compression wave, the numerical simulation of a three-dimensional viscous flow induced by a high-speed train entering tunnels with a shaft was made.

为了降低噪声的影响,对高速列车穿越带有竖井的隧道时产生的压缩波进行了三维粘性流场数值模拟。

Numerical study on generated compression waves produced by high-speed train entering tunnel with mass transfer;

基于传质现象的高速铁路隧道入口压缩波数值分析

Analysis of individual contributions of two compression waves in dynamic response of saturated soil layer;

饱和土动力反应中两类压缩波的独立作用分析

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。

A compression wave in decelerating flow steepens.

压缩波在减速流中变陡。

a region of high pressure travelling through a gas at a high velocity.

高压以高速通过气体所形成的压缩波。

e acoustic wave pulse compression filter

声表面脉冲压缩滤波器

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

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

Compressed Recording Technique for Power System Transient Voltage Waveform

电力系统暂态电压波形压缩记录技术

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

Several Key Technology to Exploit the Circling Sine Profiles Vane Compressor

开发波环滑片压缩机的若干关键技术

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

A Study on the System of Digital Pulse Compression For Multi-waveforms in Frequency Domain;

多波形频域数字脉冲压缩系统的研究

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

Theoretical and Experimental Investigation of Wavefront Aberration of Pulse Compression Grating;

脉冲压缩光栅波像差理论与实验研究

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