An improved method of modal parameters identification by the least-square complex frequency based on wavelet transform 一种基于小波变换的最小二乘复频域法的改进方法
Study of Ink Formulation Technology Based on Complex Frequency Spectrum Color Theory 基于复频谱色度理论的油墨配色技术研究
Both sine wave and steep pulse edge are special cases of complex frequency wave. 正弦振荡和脉冲边沿都是自激复频率波的特定情形。
Research on the Influence to Satellite Communication System Performance Caused by the Broad Band and Fast Frequency-hopping Synthesizer; Fast computation of wide-band radar cross section using complex frequency hopping and asymptotic waveform evaluation techniques 宽带快速跳频合成器对卫星通信系统性能影响的研究应用复跳频和AWE技术快速计算目标宽带RCS
To make the over voltage Vs time function of line trap at short time current test by complex frequency field analysis is introduced in this paper. 用复频域分析法求出试验电流作用以后的阻波器上的过电压的函数。
Transient state process solution of RLC-circuit can be solved easily by the analytic method of complex frequency field. 利用复频域分析法,方便地求解了RLC电路的暂态过程解,并对此解进行了讨论。
Fast computation of wide-band radar cross section using complex frequency hopping and asymptotic waveform evaluation techniques 应用复跳频和AWE技术快速计算目标宽带RCS
The severe numerical instability in complex frequency modal mass identification from frequency response function makes it difficult to identify physical parameters. 利用频响函数识别复频率模态质量存在着严重的数值计算不稳定性,给物理参数的识别造成困难。
The Steepness of Pulse Edge Is Analysed by Means of Concept of Complex Frequency Wave 用复频率波的概念分析脉沿的陡度
For the temporal-spatial stability problem, a new iterative method for solving the saddle point of the complex frequency is then proposed. 其中,对时空稳定性问题本文给出了一种新的迭代法可以快速有效地求出复频率的鞍点。
A method based on complex frequency domain analysis is presented for the simplification of the partial differential model of non compressible fluid transportation process. 通过复频域分析,从理论上提出了一种建立输送管内不可压缩流体动态传送简化模型的方法。
Node Admittance Voltage Equations of Fault Transmission Lines in Complex Frequency Domain 故障电力传输线的复频域节点导纳电压方程
Based on the nodal admittance matrix of faulty transmission line in complex frequency domain, this paper applies another numerical inverse Laplace transform ( NILT) to analyze the voltage response at the ends of transmission line. 本文应用分布参数故障传输线复频域布参数节点导纳方程和另一种数值拉普拉斯反变换方法,对故障传输线首末端电压响应进行了分析。
Quantum Fluctuations of the Complex Frequency Second Order Circuit 复频率二阶电路的量子涨落
To deeply understand complex frequency method and clarify some easy confusing concepts, the necessity of using unilateral Laplace transformation in system analysis is presented. 为深入理解系统分析的复频域分析法,澄清某些模糊概念,本文首先阐述了用单边拉氏变换进行系统分析的必要性。
This paper presents a stable algorithm to obtain the rational approximation from a set of sampled data by the use of bilinear transformation of the complex frequency. 本文通过复频率的双线性变换提出了获得稳定有理逼近的一个新方法,可有效克服这一困难。
This paper systematically analysed the frequency response of syntony amplifier by methods of vector scheme of the complex frequency domain. 本文应用复频域相量图解的方法,比较系统地分析了单调谐放大器的频率响应。
This paper introduces a kind of Robot Digital Machining System in order to process complex Frequency Selective Surfaces which apply in aeronautic machining area and satellite communication area, and also introduces the practical operation method. 介绍了一种在航空制造和卫星通信领域,用于复杂频率选择表面加工的机器人数字化加工系统及其应用于大型曲面的加工方法。
Time Delay Spectrometry ( TDS) is a new measuring technique which can be used to measure the complex frequency response and the complex time domain response of the audio system. 时间延迟谱技术(TDS)是一项较新的测量技术,它可以用于测量电声系统的复频响应和复时域响应。
This paper discusses the optimum estimation method used to evaluate the complex frequency response function obtained from the dual-channel FFT measurement in random vibration calibration. 本文讨论了随机振动校准中复频响函数的最佳估计。
From the point of view of systematic analysis, after getting the transfer function of the seismometer and simplifying the process of calibration with current signal, research has been done, in complex frequency domain, to the process of calibration with simulation method. 本文从系统分析的角度出发,在分析得到地震计传递函数的基础上,将方波电流标定和正弦电流标定过程进行理论抽象,进而在复频域对两种电流标定过程进行仿真推导;
Some analytical results given here illustrate the conclusions as follows: ( 1) In the case of elastic media, the complex frequency response functions or displacements of the complex forms can be obtained by using infinite models. 文中给出的有关分析结果表明:(1)在弹性介质情况下,无限摸型可对系统给出复数形式的复频响应函数或位移分布,这与无限域中波动问题的解析解相吻合;
For the linear model, we analyzed the airship's performance via root locus and bode figure in the frequency domain and complex frequency domain. 对线性模型,在复频域及频域中利用根轨迹图及波特图对飞艇的性能进行了分析,并且求取了时域响应曲线。
The complex frequency response function of the vibrating system is obtained by means of a new method. 并用一种新方法求取了该振动系统的复合频率响应函数。
Using time-frequency-and complex frequency domain analysis to find the complete response of the circuit from the different point, has the different physics meaning and calculating method. A detailed expound about the three methods also is giv-en from an example. 电路的时域、频域和复频域三种分析法求解电路的完全响应,比较了三种分析法的物理意义和计算方法。
Parameters of the GHM model are obtained by nonlinear curve fitting in the complex frequency domain, which makes the modeling become a nonlinear optimization problem. GHM模型的参数通过复频域内的非线性曲线拟合确定,最终转化为具有约束条件的非线性优化问题,并编制了相应的非线性优化程序。
The whole process of a single-phase-to-ground fault are divided into four stages, based on which corresponding equivalent circuit of the transmission lines is established in the complex frequency domain. The impact factors and their interacting mechanisms on the RRRV of secondary arc path are studied in details. 本文将单相接地故障过程分解为4个阶段,基于建立的复频域等效模型研究获得了潜供电弧弧道恢复电压上升率的影响因素及其作用规律。
In order to efficiently attenuate low frequency and evanescent waves and reduce late-time reflections, the complex frequency shifted PML ( CFS-PML) was introduced. 后来,为了吸收低频隐失波,提出了复频率偏移完全匹配层(CFS-PML)。
The complex frequency hopping is employed for the automatic control of sweep calculations. 扫描计算采用复频率跳变技术来实现自适应控制。
For the strong coupling system which needs to be decoupled, this paper introduces the principle and conditions of complex frequency domain decoupling method and time domain decoupling method. And the corresponding examples are simulated and analyzed. 对于耦合严重,需要进行解耦设计的系统,分别介绍了复频域解耦法和时域解耦法的原理及解耦条件,并对相应的例子进行仿真实验分析。