English translation for "相点"

representative point

Example Sentences:

	1.	Abstract : the phase photograph of a simple pendulum is discussed . two methods of calculating the nonlinear pendulum period is given with the phase orbital properties and the action variation 文摘:对单摆运动相图作了必要的讨论，赋予相图以直观的几何意义，并由单摆相点运动特性以及引入单摆系统作用变量两种方法求出了单摆系统的运动周期
	2.	In order to prevent short current , there are insulators between electric phase . on the high - speed railways , these are many neutral sections , chauffeurs are very exhaustion in manual mode . so the mode of manual passing over of neutral section has not fit the development of railway 在准高速、高速线路上，机车每小时要通过十几个分相点，频繁通过分相区时，手动操作不仅耗费司机精力，而且过多地分散了司机行车的注意力，对行车安全极为不利。
	3.	An algorithm for detecting moving ir point target in complex background is proposed , which is based on the reverse phase feature of neighborhood ( rpfn ) of target in difference between neighbor frame images that two positions of the target in the difference image are near and the gray values of them are close to in absolute value but with inverse sign . firstly , pairs of points with rpfn are detected in the difference image between neighbor frame images , with which a virtual vector graph is made , and then the moving point target can be detected by the vectors ' sequence cumulated in vector graphs . in addition , a theorem for the convergence of detection of target contrail by this algorithm is given and proved so as to afford a solid guarantee for practical applications of the algorithm proposed in this paper . finally , some simulation results with 1000 frames from 10 typical images in complex background show that moving point targets with snr not lower than 1 . 5 can be detected effectively 基于运动点目标在邻帧差分图像中所具有的近邻反相特征,即运动点目标的两个位置相邻近、灰度值一正一负,提出一种在复杂背景下,基于红外序列图像的运动点目标检测算法.本算法利用该特征在邻帧差分图像中检测反相点对,进而构造反相点对矢量图,最后依据累积反相点对矢量图中多矢量首位相接的连续性检测出运动的点目标.文中给出并证明应用本算法能以概率1检测到运动点目标的收敛性定理.对典型复杂背景下10幅1000帧图像的仿真结果表明,当信噪比大于或等于1 . 5时,可以有效检测出运动点目标
	4.	On the aspect of the research of the rcs computation methods , this dissertation did many work as : it discussed the application of the stationary phase method for the integral of the physical optics and gave the expressions of the stationary phase method based bezier surface for the perfect conduct and coated target ; focused on the application of the stationary phase method , it discussed some important techniques such as the searching of the stationary phase method and the handling of the singularity ; it also discuss the application of the gauss method for verifying the correction of the stationary phase method , and gave their compares of the efficiency and the precision 在rcs算法研究方面，本文做了以下研究：讨论了在bezier曲面上物理光学积分的驻相法求解，给出了bezier曲面上理想导体和涂敷目标驻相公式；围绕驻相法的应用，讨论了驻相法应用中的一些关键的技术问题，包括驻相点的搜索、驻相法的奇异性；为了检验驻相法的精度，还讨论了gauss积分的应用，给出了两种方法计算效率和精度的比较。
	5.	At last , it deduced a new improvement method from the theories , and make use of a new physical concept ? the independent of speed function for accuracy checking up the turns sub - position and the communication point so as to control sensorless brushless dc motor with the breadth regulating - speed scope from zero to high speed . based on the function , it will research the new control method 最后,从理论上推导了新的改进方法,并利用一个新的物理概念? ?与速度无关的位置函数g ( ) ,其能高精度检测出转子位置和换相点,以此来控制无刷直流电机,实现电机从零转速到高转速的宽速度范围调节,在此基础上研究了应用这种新的位置函数的控制策略。
	6.	In this chapter , the method of bldcm rotor position detection is first discussed . then the principle and algorithm of bemf zero crossing point detection is explained . in succession , the chapter dissertates the software realization of the bemf zero crossing point detection algorithm , the software disturbance filter and the modification of phase displacement , and the software realization of commutation point 在这一章中，先简述了无刷直流电机的转子位置器检测方法；然后论述了反电动势过零检测原理和算法以及该算法的软件实现、软件滤波和相移修正、换相点的软件实现；最后对软件开环换相起动策略作了详细论述。
	7.	Abstract : the responses of shaft bow and their relationships with unbalanceresponses and mechanical or electronic run out are analyzed based on the theory of rotor dynamics . the responses of shaft bow are separated from the unbalance responses successfully by making use of vibration information under different rotor runs . an identification method of thermal bend is presented based on the 2d - holospectrum technique . experimental results show that when bow phase is steady and amplitude is variable , the tangent of initial phase point on the 2d - holospectrum is parallel , which can be effectively used for diagnosis of bent shaft 文摘:依据转子动力学理论分析了柔性转子弯曲响应的特征，在此基础上讨论了它与不平衡响应及机械与电气跳动量之间的关系，并利用转子在不同起车情况下的振动信息，有效地分离了弯曲响应和不平衡响应，求解出弯曲量与不平衡量的比值.提出了转子在恒定转速下，基于二维全息谱技术的热弯曲故障识别方法.研究结果表明，当弯曲量相位稳定而其幅值变化时，转子响应的二维全息谱初相点的切线是相互平行的，由此可以有效地实现转子热弯曲故障的识别与诊断

Similar Words：

"相抵误差" English translation, "相地层典型剖面" English translation, "相地段" English translation, "相地间电压" English translation, "相地耦合" English translation, "相电流" English translation, "相电流自动平衡保护" English translation, "相电位" English translation, "相电压" English translation, "相电压不平衡百分数" English translation