Temperature Prediction for Substations Based on Chaotic Time Series Estimation of TDOA for Locating Noise-Frequency Modulation Jammer in Passive System 基于混沌时间序列的变电站设备温度预测对噪声调频干扰源的站间到达时差测量
Explained with emphasis uses the BPTS series frequency changer to the engine bed main axle velocity modulation plan transformation, finally has produced the engine bed movement performance condition. 重点说明了利用BPTS系列变频器对机床主轴的调速方案改造,最后给出了机床运行的性能状况。
By means of analyzing the mechanism of static synchronous series compensator ( SSSC), a scheme to implement SSSC controller by use of sinusoidal pulse width modulation ( SPWM) is proposed. 通过对静态同步串联补偿器(StaticSynchronousSeriesCompensator,SSSC)机理的分析,提出了应用正弦脉宽调制(SinusoidalPulseWidthModulation,SPWM)技术的SSSC控制器实现方案。
By using the multiple-scale method, one of the perturbation methods, we obtain a series of equations from Euler Equation. Modulation equation is given by using the Fredholm's theorem on these equations. 首先从Euler方程出发使用多重尺度方法导得了一系列递推方程,然后利用可解性条件求得了调制方程。
A series of VN/ ( Ti, Al) N nano-multilayers with various modulation periods were prepared ( using) reactive magnetron sputtering method. 采用反应磁控溅射技术制备了一系列具有不同调制周期的VN/(Ti,Al)N纳米多层膜。
The results show that Fourier Series Smoothing method is not only an efficient method, but also is easy to estimate image quality using modulation transfer function. 试验结果表明:付立叶级数滤波法是一种行之有效的方法,并便利于用调制传递函数评价影象质量。
Series Demultiplex Method Study of Optical Fiber F-P Strain Sensors with Wavelength Domain Modulation 波长调制型光纤珐珀应变传感器串联复用技术研究
The power spectrums of the input current and the output voltage of the normalized chaotic series modulated by different chaotic sources under the same switching modulation scheme is analyzed. 以不同混沌源信号调制得到的归一化混沌序列,在相同的开关调制模式下,对电源的输入电流频谱及输出电压频谱进行了分析对比。
The article deals with the functions of DC AC series intelligent power inverters, software PWM technology and alternating voltage output modulation technology. 介绍了DCAC系列智能电源逆变器的功能,软件PWM技术及其交流电压输出调制技术。
Then with the help of the mathematical analysis of the modulation methods in the series resonance circuit and the simulation results, a suited modulation method is chosen. 对串联谐振逆变电路的几种调功方式进行数学分析和仿真研究,比较它们之间的优缺点,结合分析的结果确定调功方式。
This thesis introduces a series of low cost high precision Linear Frequency Modulation Continuous Wave ( LFMCW) ranging radar. 本文介绍一种低成本、高精度线性调频连续波(LFMCW)测距雷达。
Waveform generator based on Digital Synthesis has a series of particular virtues, including the stable frequency of output, high quality waveform and wide modulation bandwidth, which is an important trend of study of Arbitrary Waveform Generator. 基于数字合成技术的任意波形发生器具有频率稳定、准确,波形质量好和输出频率范围宽等一系列独特的优点,是任意波形发生器研究的一个重要方向。
With reference to clutter simulation based on ZMNL, this paper firstly introduces normal methods of generating relevant stochastic series and amplitude modulation by ZMNL. 对基于ZMNL方法实现杂波仿真,本文简要介绍了相关随机序列产生的一般方法和利用ZMNL实现幅度调制的一般方法。
In the first part of this series papers, we have proposed an estimation algorithm for the extended state space model~ [ 1], which will be used to realize the demodulation for chaotic modulation communication systems in the second part. 在这系列文章的第一部分,我们提出了一种状态空间模型的估计算法[1]。第二部分将该算法应用于混沌调制通信系统的解调。
The Application of Fourier Series Smoothing Method in Determining Modulation Transfer Function of Imaging System 付立叶级数滤波法在测定成象系统调制传递函数中的应用
In the attracting song in male cricket, each single call ( SC) contains 7.6 beats in average, each contains two pulse series groups and each group contains four main amplitude-modulation pulse trains. 雄蟋招引声的每个单次叫声(SC)平均含有7.6个节拍,每个含有2个脉冲列组,每组含有4个主要的调幅脉冲列.每个SC的声长、间隔和平均重复周期(?)
Then, the numerical simulation is fulfilled, along with a series of rules of the influence on intensity modulation property caused by multimode fiber parameters, the factors of reflector shape and inclination. 然后,采用数值仿真的方法系统地研究了多模光纤参数(包括光纤对轴间距、光纤芯径和光纤数值孔径)、反射面倾斜因子以及形状因子对RIM-FOS强度调制特性的影响规律。
In addition, we studied it through a series of flume experiments. The velocity distribution and the thickness are measured by a new type LDA named Optic Electric Modulation Feedback-Laser Doppler Anemometry System ( OEMF-LDA). 通过水槽实验,包括利用光电调制反馈激光多普勒测速系统(OEMF&LDA),对波浪断面流速分布及边界层厚度进行了量测,获得了大量资料,利用这些资料与作者公式进行比较。
Then the thesis proposes improving measures, which are by the establishment of post evaluation system, adaption of salary series and level, amplifying modulation on different regions and targeted adjustment on the features of all series. 然后提出改进措施,通过建立岗位评价体系,调整薪酬系列和等级,增加地区调节系数和对各系列特点针对性的调整来完善现行薪酬体系。
Through a series of experiments to the principle prototype, the invertor control policy, the frequency conversion velocity modulation and so on, and the experiment profile has been given, simultaneously the feasibility of the system has also been proven. 并通过一系列的实验对原理样机,逆变器控制策略,变频调速等进行了验证,给出了实验波形,同时也证明了系统的可行性。
The Jacobi-Anger series representation of sinusoidal frequency-modulated signals is first analyzed, then one new approach based on Jacobi-Anger series representation is derived to estimate the modulation parameters and 2-D AOA of the wideband sinusoidal frequency-modulated signals. 6. 基于正弦调频信号Jacobi-Anger级数表示,提出了一种高效的正弦调频信号调制参数及二维到达角联合估计新算法。