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。
Numerical solutions of the equations with the internal generation of sinusoidal and cnoidal waves confirm this finding.
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。
The bottom boundary layer under cnoidal waves was studied by using Acoustic Doppler Velocimeter(ADV) technique in a laboratory flume.
利用升余弦包络调制信号的特点,即基带信号为升余弦波,接收端可以利用这一包络,从中提取定时信息。
A method by using 8031 single-clip microprocessor to get the syntonical bit information is presented, based on the characteristic of the modulated singal in ascending cosine envelope.
以斜坡上梯形潜堤为研究对象,在波浪水槽实验的基础上,分析斜坡上潜堤对规则波和椭圆余弦波传播变形的影响。
Flume experiments are carried out to observe and analyze the characteristics of wave propagation over submerged breakwater on the slope.
此外,一个粗略的正弦曲线图表可以在每天或每年的平均每日温度平面图表中看到,虽然这个图形可能和倒置的余弦波看起来很像。
Also, a rough sinusoidal pattern can be seen in plotting average daily temperatures for each day of the year, although the graph may resemble an inverted cosine wave.
了解如何通过增加正弦和余弦来制造各种不同形状的波。
Learn how to make waves of all different shapes by adding up sines or cosines.
在众多语音信息隐藏算法中,挑选出一种幅度量化的信息嵌入方案,分别在离散余弦和小波变换域上,通过对变换域系数的幅度量化来隐藏信息;
This paper selects the algorithm by quantifying the amplitude of the transform domain coefficient and uses this algorithm in the discrete Fourier domain and the discrete cosine domain.
本文介绍了余弦窗函数,并将其应用到平面波综合技术中。
The cosine window function is introduced and applied in the plane wave synthesis technique.
与jpeg相比,JPEG 2000作了大幅改进,其中最重要的是用离散小波变换(DWT)替代了JPEG标准中的离散余弦变换。
Compared with JPEG, JPEG 2000 made substantial improvements, the most important of which is discrete wavelet transform (DWT) instead of the JPEG standard discrete cosine transform.
目前主要有两种变换域方法,一种是使用离散余弦变换(DCT),另一种是使用离散小波变换(DWT)。
There are two main transform domain methods, one is to use the discrete cosine transformation (DCT); the other would be the use of discrete wavelet transforms (DWT).
同时,建立了反余弦一波正弦形缓和曲线的设置方法和计算公式。
This article puts foward a "Secant One—wave Sine—shaped Transition Curve", whose deflection angles are of secant varlation.
该频域算法采用更常见的含信息量丰富的灰度图像作为水印,结合离散小波变换和离散余弦变换的共同优点。
The frequency domain algorithm adopts the common and information - rich gray level image as a watermark, which achieves the collaborative advantages of combining the DWT and DCT.
结合这种压缩思想,用基于离散余弦变换和基于离散小波变换的压缩算法,对实用型模块化成像光谱仪多光谱图像进行压缩。
Combining the thought dimensioned above, with discrete cosine transform-based and DWT-based compression algorithms, the OMIS multi-spectral images are compressed.
本文提出一种新的合成孔径雷达(SAR)干扰方法:SAR二维余弦调相转发散射波干扰。
A new method of SAR jamming is proposed:the 2-D cosinusoidal phase-modulated repeater scatter-wave jamming.
本文提出一种新的合成孔径雷达(SAR)干扰方法:SAR二维余弦调相转发散射波干扰。
A new method of SAR jamming is proposed:the 2-D cosinusoidal phase-modulated repeater scatter-wave jamming.
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