方向特性

基于直航法的目标RCS方向特性测量

Measurement of RCS Directivity of Target Based on Straight-running Measurement Method

利用改进因子改善直线基阵方向特性

Theoretical research on the improvement of linear array directivity by using an improving factor

Ni基单晶合金蠕变过程中的方向特性研究

The crystallographic study of the creep-directional - properties of Nickel-base Single Crystal Superalloy

ZnO纳米粉末激光方向特性的研究

Study on the Directional Characteristics of ZnO Nano-powder Laser

在指纹图像增强方面，利用指纹的方向特性设计出Gabor滤波器，使用Gabor滤波器对指纹进行滤波；

Using Gabor filter designed by ridge orientation of fingerprint implements fingerprint enhancement .

子阵DBF方向特性分析及通道失配校正

Pattern function characteristics analyses and channel mismatch correction for DBF in subarray

对于图像增强，算法利用指纹的方向特性和频率特性设计出Gabor滤波器对图像进行滤波，取得理想的效果；

Using Gabor filter designed by ridge orientation and ridge frequency of fingerprint , this algorithm implements fingerprint enhancement with perfect effect .

本文求得了椭园喇叭在H（11）偶波激励时的某些主要方程，计算了喇叭的方向特性，画出了它们的曲线，获得了某些有益的结果。

The article deals with some chief equations of elliptical horn in eH_ ( 11 ) - mode . The authors calculate the directional characteristics of the horn nd make out their curves , thus obtaining some good results .

该方法根据Gabor特征具有的良好方向特性，首先确定方向参数，然后在每个特定方向进行最佳单Gabor滤波器的参数搜索。

Our main idea is to set the orientation parameters manually based on directional characters in Gabor features , then at each orientation search the optimal single Gabor filter .

由于FY2B对于敦煌场区的卫星天顶角接近50°，需要进行场地的方向特性BRDF修正。

There are must calibrated the BRDF of bi-direction characteristic of Dunhuang 's site , because the zenith is close to 50 ° .

利用方向特性实现非下采样Contourlet变换阈值去噪

Image denoising using the directional property in the NSCT domain

为了得到较理想的车道标识线的边缘，考虑车道标识线的方向特性，提出一种基于边缘分布函数（EDF）的图像预处理方法。

In order to get an ideal lane marks'edge , an image preprocessing method based on edge distribution function ( EDF ) was proposed considering the directional characteristics of lane marks .

图像的方向特性与分形&小波变换编码

Image Orientation Property and Fractal & Wavelet Transform for Image Compression

着重讨论了纹理的分布特性和纹理的方向特性。

The distribution and the direction in texture is discussed .

基于乳突纹方向特性的掌纹自动分类方法

Automatic palmprint classification method based on the orientation of ridges

极低风速下热线测量的方向特性

Directional Sensitivity for the Hot Wire Measurements at Very Low Wind Velocity

椭圆形阵列天线的方向特性研究

A Study on the Directional Characteristics of Elliptic Array Antennas

探地雷达天线方向特性探讨

A tentative discussion on antenna directional characteristics of the ground ? Penetrating radar

基于形态变换的三维表面形貌方向特性研究

3D Surface Topography Directionality Determination Based on Morphological Transformation

阵列偶极源辐射场在导电地层中传播的方向特性

The direction characteristic of radiation wave of array dipole source in the conductive strata

平面式等离子体腐蚀器表面波等离子体鞭状天线方向特性的理论分析

Theoretical Analysis on Radiation Characteristics of the Plasma Whip Antenna Sustained by Surface Wave

本文用二维傅里叶级数分析某些目标的方向特性。

The directional characteristic of some objects is analysed by means of 2D Fourier series .

抵消相干干扰的方向特性

Direction property of coherent interference suppression

在严重的各向异性岩石中，准剪切波有复杂的方向特性，并有歧点。

For severely anisotropic rocks , the quasi - shear waves exhibit complex directionality , with cusps .

为了充分利用纹理结构的其他信息，如方向特性、尺度特性等，论文又将该方法扩展到矢量形式。

Much of other useful information about texture properties such as texture orientations and scales are lost during the diffusion filtering .

鲁棒故障检测滤波器方法使残差既有干扰解耦特性又有方向特性。

The robust fault detection filters can ensure that the residual error , generated by this filter , has both robust and directional properties .

对双剪统一屈服准则所表征的材料屈服极限和滑移面方向特性作了分析。

Two aspects of the yield limits and the slip directions for materials in the twin-shear unified yield criterion are analyzed in this paper .

通常在计算海底混响时，假设在海床上分布具有一定方向特性的次声源。

Usually the assumption of secondary sourses lying on the sea bed and possessing definite directional character is taken for the calculation of bottom reverberation .

把它引入到粗糙表面的润滑分析中，能够更确切地揭示出各向异性表面的纹理方向特性对润滑性能的影响规律。

When it is introduced into lubrication analysis of the rough surfaces , the influences of surface texture directionality on lubrication can be revealed more exactly .

文中将滤波逆投影算法与子孔径思想相结合，提出了一种提取目标散射中心方向特性的方法。

In this paper , we propose a new algorithm based on sub-aperture and filtered back-projection algorithm to estimate the anisotropy of objects scattering centers in wide-aperture imaging .