1) stacking directivity
叠加方向特性
2) superposition of directive pattern
方向性图案叠加
3) Direction of superposition
叠加方向
4) adding effect
叠加特性
1.
By analyzing the unsteady blade force located on leading edge and trailing edge of the rotor tip and hub,the adding effect of the upstream wakes and downstream potential effect was illustrated.
通过研究转子叶片根部、尖部前缘和尾缘局部位置的非定常气动力,阐明了由尾迹和势扰动两种非定常性诱发的气动力在转子叶片表面的叠加特性。
5) direction characteristic
方向特性
1.
The direction characteristic of radiation wave of array dipole source in the conductive strata;
阵列偶极源辐射场在导电地层中传播的方向特性
2.
On the basis of it,the influence of the array dynamic parameters on the direction characteristic of the array gain,which includes the number and interval of dynamic synthesis array,the time and space correlation radii of noise and torpedo-target range,is studied.
在此基础上,研究了阵元数量、时间相关半径、空间相关半径、鱼目距离和阵元间距等基阵动态参数对增益方向特性的影响。
6) directional characteristic
方向特性
1.
A set of algorithms for fingerprint image preprocessing based on directional characteristic is presented,including foreground/background segmentation,smoothing in gray image,binarization,filtration in binary image and thinning.
提出了基于方向特性的指纹预处理算法,包括前景/背景提取、平滑、二值化、二值滤波、细化5部分。
2.
The lifting wavelet transformation is introduced and the directional characteristic of the high-frequency coefficients is discussed and analyzed in this paper.
介绍了图像的提升方案小波变换并统计了图像经小波变换后各高频子带系数的方向区域特性,据此提出了一种新的基于小波系数方向特性的图像融合方法。
3.
The neighboring relation of low-frequency wavelet coefficients and the directional characteristic of the high-frequency coefficients is discussed and analyzed,then,a novel image fusion algorithm based on directional spread of wavelet coefficients\'differences is proposed.
对图像经提升小波变换后低频小波系数的区域相关性以及高频小波系数的方向特性进行了分析和统计,提出了一种基于小波系数差值方向传播的图像融合新方法。
补充资料：波的叠加原理
物理学的基本原理之一。介质中同时存在几列波时，每列波能保持各自的传播规律而不互相干扰。在波的重叠区域里各点的振动的物理量等于各列波在该点引起的物理量的矢量和。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条