Finally one method provided to amendment the fuzzy of one-dimensional range profile caused by the nonlinear phase difference.
并且,根据实验结果给出了对相位差值对影响雷达一维距离像影响的修正方法。
This paper introduce the fundamental principle of three dimensional range imaging techniques and their receive system based on correlative phase discriminator.
本论文介绍了基于并行相关鉴相原理的三维测距成像系统的基本原理,鉴相接收子系统设计等方面内容。
First, the basic expression of high-resolution one dimensional range profile of the stepped frequency (SF) is deduced to explain the high resolution of the wideband signals.
首先,给出了宽带雷达信号具有高分辨能力的直观解释,推导了频率步进雷达合成高分辨一维距离像的通用数学表达式。
Two methods are presented, one is based on the normalized central moments of one dimensional range profiles, the other is based on one dimensional scattering centers matching.
提出了基于目标一维平均距离像归一化中心矩的目标识别方法和一种新的基于目标一维散射中心匹配的目标识别方法。
Then, in the light of high-resolution radar target one dimensional range profiles, it is decomposed in multi-resolution and the multi-resolution feature description are obtained.
然后提出了可用于高距离分辨力雷达目标识别的一维距离象多分辨分解和目标结构特征的多分辨描述方法。
On the basis of analyzing the features of one-dimensional range profile, an effective method is proposed, which performs amplitude average of the range profiles to obtain more stable patterns.
在分析了一维距离象特点的基础上,提出了采用非相关幅度平均一维距离象以获取稳定模式这一有效方法。
Multi DIMENSIONAL CLUSTERING (MDC) - organizing data in table (or range of a table) by multiple key values.
MULTIDIMENSIONALCLUSTERING (MDC)——根据多个键值组织表(或一个表中的范围)中的数据。
For best performance and minimal space consumption, we recommend using database partitioning, range partitioning, compression, and multi-dimensional clustering.
为了获得更好的性能和最小化空间消耗,我们建议使用数据库分区、范围分区、压缩和多维集群。
They range from cartoonish images on social networking profiles to three-dimensional-looking objects that people exchange in virtual worlds and on Web sites.
这些虚拟礼物包括社交网络平台上代表个人形象的卡通图像,以及人们可以在虚拟世界及网站上进行交换的三维视效物体。
Tolerances cover dimensional variation and surface-roughness range and also the variation in mechanical properties from heat treatment and other processing operations.
公差这个概念既包括尺寸偏差范围和表 面粗糙度范围,也包括由热处理和其它处理操 作所引起的机械特性的变化。
Einstein's elevator; Artillery range; Uniform acceleration and circular motion using dimensional analysis.
爱因斯坦电梯;炮火射程;匀加速度和圆周运动的量纲分析。
Under a wide range of P and V value, there are very low friction coefficient and wear, high dimensional stability for coating-metal pairs and no any damage during the test of nylon coating.
涂层在较大的P、V值范围内与各类配副均具有极低的摩擦系数和磨损量以及很高的尺寸稳定性;长期工作过程中,涂层未出现任何破坏现象。
The high range resolution principle and Doppler performance is analyzed. The effect of velocity and acceleration on one-dimensional high range resolution is calculated through simulation.
分析其高距离分辨原理及多普勒性能,通过仿真,计算速度、加速度对一维距离高分辨的影响。
Air route planning is a three-dimensional planning problem, with wide range, many objects and many constraints.
飞行航路规划是一个大范围多目标多约束的三维规划问题。
Moreover, for two-dimensional imaging, range resolution and cross-range resolution are also mentioned in the paper.
此外,对于二维成像,距离向分辨率和方位向分辨率也是必须考虑的因素。
The range of motion(ROM) on six directions under different conditions was tested by spinal three dimensional analysis system.
在脊柱三维运动试验机上测试不同状态的三维六个方向上的运动范围。
The principle of obtaining one dimensional high resolution range profiles (HRRP) of a target is introduced, and a method of target detection and tracking based on HRRP is presented.
本文阐述了高分辨率一维距离成像的原理,提出了一种基于目标距离像的目标信号检测和跟踪方法。
Based on Z curve, the paper presents a method of grid partition, a procedure of partitioning search region, and a high-dimensional spatial range query algorithm.
利用Z曲线聚类和降维特性,本文给出网格划分方法、搜索区域分解过程,提出一种高维空间范围查询算法。
To register multiple range images, we present a method for the pose estimation of multiple viewpoints for three-dimensional digital imaging system based on fringe projection.
为校准多视场深度数据,提出基于条纹投影的三维数字成像系统的多视点姿态估计方法。
This algorithm is based on high-order range model, which firstly corrects range walk in the process of range compression and then corrects range bending in two dimensional frequency domain.
该算法基于高阶距离模型,首先在距离压缩时校正距离走动,然后在两维频域校正距离弯曲。
Combined with weighted filtration to successful sample points, it uses the method of sampling in three-dimensional space and range constraint to acquire three-dimensional coordinates of nodes.
为了减小定位误差和提高算法的适应性,利用三维空间抽样和范围约束的方法,并结合对成功样本点的加权筛选,获得节点的三维估计坐标以实现抽样定位。
Distance resolutions and noises are analyzed experimentally for long-range three-dimensional (3d) active imaging systems that have signal-to-noise ratios (SNRs) more optimal than 30:1.
分析了信噪比大于30:1的远距离三维成像系统的噪声和距离分辨率。
Two-dimensional metallic photonic crystal in THz range was constructed.
构造了一种适用于太赫兹器件的二维金属光子晶体结构。
The factors and principles to establish evaluation criteria are put forward. The criteria of appearance defects, dimensional precision, weight range and process parameters are set up.
提出了建立评价尺度应考虑的因素和评价指标的选取原则,建立了外观缺陷、尺度精度、件重范围和过程变量的评价尺度。
For two dimensional inverse electromagnetic field problems, the range of movable points is extended by use of high order finite elements.
本文在优化区域边界的二维电磁场逆问题中,应用高阶有限元,增大了可变动节点的变化范围。
The velocity measurement of 2-dimensional motion is realized through target radial moving information measured by two times range finding to improve the shooting precision.
由两次测距的目标径向运动信息,实现目标二维运动速度测量,改善射击精度。
Lower dimensional AFH models show some novel properties such as quasi-long-range-order, spin gap, quantum phase transition, etc.
由于低维体系中有很强的量子涨落,使这些体系呈现出许多新奇的特性,如会有自旋准长程序、自旋能隙、量子相变等现象。
The manipulator is capable of finishing various operations in a three-dimensional space and can carry an object from one azimuth to another azimuth within certain spatial range.
该机械手能在三维空间完成各种作业,在一定空间范围内将一个物体从一个方位搬运到另一个方位。
Result: the three-dimensional image can show the position, range, shift and rotation of the fracture, exactly and angularly.
结果:螺旋CT三维影像能立休、精确、多方位地显示骨折的部位、范围、移位及旋转等情况。
A high precision three-dimensional micro displacement test platform was set, and the measuring range, linearity and displacement error of the probe were tested and verified by experiments.
搭建了高精度三维微位移测试平台,对测头的测量范围、线性、位移误差进行了实验验证。
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