在许多集群实现中,集合中的项目都是作为矢量表示在n维度空间中的。
In many implementations of clustering, items in the collection are represented as vectors in an n-dimensional space.
在一无限空间中恒存在两个子空间,其矢量和与其张成空间不同。
In an infinite dimensional space there always exist two subspaces whose vector sum is different from their span.
常规多信号分类(MUSIC)在估计信号或噪声子空间时未利用阵列的方向矢量信息。
Information on the steering vector is not exploited when estimating signal or noise subspaces in the standard multiple signal classification (MUSIC) method.
支撑矢量机是根据统计学习理论提出的一种新的学习方法,即使用核函数在高维空间里进行有效的计算。
The support vector machine is a novel type of learning technique, based on statistical learning theory, which USES Mercer kernels for efficiently performing computations in high dimensional Spaces.
一方面,采用腕部速度矢量在操作臂关节空间极小最小二乘分解的方法规划操作臂关节速度。
In one hand, the manipulator positioning is achieved by decomposing the track velocity vector in joint space with minimal least square method.
建立了三相异步电动机在旋转坐标系下的数学模型,论述了空间矢量脉宽调制技术原理。
The mathematical model of three-phase asynchronous motor in rotating coordinate system is established, and PWM technology of space vector is discussed.
在分析空间矢量调制(SVPWM)基本原理的基础上,证明了SVPWM具有最大的直流电压利用率。
By analyzing the base principle of space vector pulse width modulation (SVPWM), it is proved that the DC voltage utilization.
较详细地论证了空间等值线和矢量轨迹线在定量解释中应用的基本方法——量扳法。
Then the application of the spatial contour and the vector track in quantitative interpretation was discussed in detail.
该文提出并分析了错时采样空间矢量调制(STS - SVM)技术的工作原理及其在级联型多电平变流器上的实现方法。
In this paper, the principle of Sampling Time Staggered Space Vector Modulation (STS-SVM) as well as its realizing method in cascade multilevel converters is presented.
研究了矢量信道在时域和空间域对信号的影响,即信号的快衰落特性。
This paper studies the fading process of signal in the vector channel from the perspective of time domain and space domain.
空间查询技术在矢量要素叠加和洪水模拟演进方面的可视化应用。
The visual application of spatial query technique in the field of vector elements overlapping and the simulative evolution of flood.
对空间电压矢量方法进行了改进,在不改变系统输出特性的前提下,使开关频率降低了50%。
Maintaining the output character of the system, the voltage space vector control was improved which made the switching frequency decrease 50%.
在集成DSP电机控制器admc331软硬件结构的基础上,编制了空间矢量脉宽调制软件,并给出了相应的实验结果。
Software of the space vector PWM are worked out and correlated experiment results are achieved, which based on an integrated DSP motor controllers ADMC331.
在局部FC -一致空间内,引入和研究了某些新的涉及凝聚集值映象的广义矢量拟平衡问题组。
Some new systems of generalized vector quasi-equilibrium problems involving condensing mappings were introduced and studied in locally FC-uniform Spaces.
在分析电压空间矢量调制(SVPWM)基本原理的基础上,证明了SVPWM具有最大的直流电压利用率。
By analyzing the basic principle of voltage space vector pulse width modulation (SVPWM), it is proved that the dc voltage utilization ratio of SVPWM is the highest.
在传统的PWM整流控制的基础上,论文利用开关函数建模法,提出了基于预测电流的PWM电压空间矢量控制方法。
Based on the traditional control on PWM rectifier, space vector PWM predictive current controller is presented using the switching function model.
在HSV颜色空间,定义了一种新的矢量排序方法。
In the HSV color space, a new vector sorting method is defined.
将学习矢量量化神经网络集成在基于实例推理的故障诊断方法中,减小了实例搜索空间,提高了实例检索效率。
The learning vector quantization neural network has been integrated successfully with the case-based reasoning approach to reduce the case indexing space and to enhance the indexing efficiency.
在非对称输入电压情况下,对基于双空间矢量调制的矩阵变换器的输出电压波形进行了分析,提出了利用时变调制比改善输出电压波形的方法。
The output voltage waveforms of matrix converter which is based on the space vector modulation are analysed under the unbalanced input voltage. A time-variant modulation ratio method is proposed.
在常规直接转矩控制系统中,每一采样周期中只施加一个电压空间矢量。
Only one space voltage vector is applied in each sampling period in the implementation of the conventional PMSM DTC system.
在一个调制周期内,可预先求出几个死区电压矢量的合成矢量,用控制软件的方法实现对参考空间电压矢量的校正,从而消除死区效应。
During a modulation period, several dead voltage vectors were synthesized. Using the control software, the reference voltage space vector could be corrected. Thus the dead-time effect was eliminated.
在图像的边缘空间,提取图像边缘点的颜色矢量角直方图,以此来描述图像的内容。
The color vector Angle histogram is constructed in the image edge and used to describe the image.
在拓扑矢量空间的非紧设置下证明了拟平衡问题解的某些存在定理。
Some existence theorems of solutions for the quasi equilibrium problems are proved under noncompact setting of topological vector spaces.
作者在该文中从世界空间的四维坐标和四维波矢量出发,证明了电磁波的相位不变性。
This article, on the basis of four dimensional coordinates and four dimensional wave vectors of world space, proves the phrase constancy of electromagnetic waves.
对于无相关投影空间中的任何正交矢量集,其在原空间中的特征统计无关。
For any orthogonal vectors in the uncorrelated projection space, the obtained features in the original space are statistically uncorrelated.
在矢量GIS空间数据中,点、线和面目标是它的基本要素。
Point, line and area are basic elements in GIS vector spatial data.
在分析死区效应对空间电压矢量调制输出电压影响的基础上,提出死区电压矢量的概念,给出死区电压矢量的求取方法。
By analyzing the basic influence of the "dead time effect" acting on the output voltage of SVPWM inverter, the concept of the dead time voltage vector is put forward.
本文在分析死区效应对空间电压矢量调制输出电压影响的基础上,给出了一种对死区效应进行补偿的方案。
This paper analyzed the influence of the dead-time effect acting on the output voltage of SVPWM inverter, and proposed a solution to dead time compensation.
介绍了空间矢量这一在电机分析中重要概念,在此基础上讨论了高性能电机控制中所需的各种坐标变换。
Space vector is a very important conception in electrical machine analysis. This paper discusses the reference frame conversion used in high performance motor control based on space vector.
本文主要研究三电平逆变器在电压空间矢量控制过程中中性点电压平衡的控制方法。
This paper proposes a new strategy for balancing the neutral point voltage in the process of the three-level inverter vector controlling.
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