将辛算法运用到标量波动方程的时域模拟中。
The symplectic integrator method is applied to time evolution of the scalar wave equation.
与传统方法相比，因为采用这些方法，仅需一次时域模拟，因此可以减少计算时间。
Because only one time-domain simulation is required using those techniques, computation time can be reduced by comparison with traditional method.
算法起到了提高模拟精度、加快仿真速度的作用，为ADC时域模拟开辟了新的研究空间。
The algorithms serve to improve the simulation accuracy and speed up the simulation. The algorithms introduce a new research field on ADC time-domain simulation.
数值计算结果验证了有航速船舶与波浪相互作用的三维时域模拟计算程序的有效性，为工程的实际应用奠定了基础。
The numerical results agree well with the experimental and reference results. It will also lay a foundation for further engineering application.
模型中引入了四轮相关路面激励和人体模型，以能量方程推导出系统的动力学方程，进而对系统的振动过程进行了时域模拟和试验验证。
The dynamic equations were derived from the system energy equations, and vehicle-human system vibration simulation in time domain as well as experiment verification was carried out.
采用基于等离子体物理模型的时域有限差分方法模拟了金属薄膜近场成像特性；采用薄膜传输矩阵方法计算了金属薄膜对倏逝波分量的放大作用。
The property of the near field subwavelength imaging in a metal thin-film structure is investigated using finite difference time domain method based on Drude model.
时域有限差分法将声波基本方程表示为一个时间和空间的迭代方程组，实现对室内声场中低频段的模拟计算。
The acoustical wave equation is presented a serial spatial and time iterative equations and room acoustics field is simulated using finite difference time domain method.
在信息传输方面，模拟频域信号与模拟时域信号类似，信号也随时间变化。
Analog frequency domain signals are similar to time domain signals because they also convey information on how the signals vary with time.
三种模拟信号分别为DC信号，时域(或ac)信号，以及频域信号。
The three analog signal types are the DC signal, the time domain (or AC) signal, and the frequency domain signal.
目的为电动振动台实现模拟爆炸冲击环境提供一种有效的在线时域合成方法。
Objective to present an effective on line SRS time history waveform synthesis method for simulating pyrotechnic shock environment with electrodynamic shakers.
首先简要介绍了气象雷达的雷达方程、气象雷达探测气象目标的基本原理、气象目标回波的时域频域特性和气象回波信号的模拟方法。
Firstly, we introduce the radar equation of weather radar, the basic principles of detection weather targets, the time and frequency domain properties of weather radar echo and its simulation methods.
基于测试的气动参数和模拟的脉动风速场，给出了车辆和桥梁静风力、抖振力及自激力的时域表达式。
Based measured aerodynamic parameter and simulated wind speed field, time-domain expression of static wind load, buffeting load and self-excited load for bridge and vehicle are introduced.
研究结果表明，从模拟连续模型的精度上看，时域离散化使集中质最有限元法优于一致质量法，前者可取较大时间步长。
This paper shows that the time discretization makes the lumped-mass method much better than the consistent-mass one as accuracy is concerned for simulating wave motion in the continuous model.
本文提出一种通过时域非线性压缩-扩张改变FWCM采样步长，实现电路模拟误差分布控制的方法。
This paper provides a new method to regulate the step length of FWCM by nonlinear companding in time domain, so that the error distribution can be controlled in circuit simulation.
为了分析海上风机结构在时域内的风振动力反应，进行了脉动风速时程数值模拟研究。
To analyze the wind-induced dynamic response of offshore wind turbine in time domain, the numerical simulation of fluctuating wind velocity time series was studied.
目的在于建立一种新的疲劳模拟时域控制方法。
The purpose is to develop a new time domain control method of vehicle fatigue simulation test.
并且以典型色散媒质为例，对不同形状色散目标及多层色散媒质柱体目标的时域散射特性进行数值模拟与分析。
The scattering of several objects with different shape and complex objects formed with multi-layer dispersive media are simulated.
利用非线性时域有限差分数值模拟方法，得到了高斯脉冲激励下的双稳态响应曲线。
The bistable hysteresis loops with Gaussian pulse pumps is obtained by using nonlinear FDTD method.
探讨了利用非平稳随机过程理论和少量的实际风速记录模拟自然风，并以此作为桥址处的自然风用时域抖振分析方法对某系杆拱桥进行抖振时域分析。
Then by taking the simulation results as the natural wind in the bridge address, the buffeting analysis in time domain is carried out for an arch bridge of linking pole.
时域有限差分（FDTD）算法被广泛地用于模拟电磁场的传播。
The finite-different time-domain(FDTD) method has been widely used to simulate the transient solutions of electromagnetic wave propagation.
模拟时域，或波形。模拟时域信号不同于其他信号，它通过信号电平传输有用的信息，而这些电平时随时间变化的。
Analog time domain, or shape, signals differ from other signals in that they convey useful information not only in the signal level, but also in how this level varies with time.
为利用电动振动台进行模拟冲击环境试验，给出了一种时域冲击波形合成方法。
An effective shock response spectrum (SRS) time-history waveform synthesis method was presented for simulating shock environment with electro-dynamic shakers.
用时域有限差分法和CST软件对该新型结构进行了模拟对比，并对其物理机理进行了分析，解释了其双负效应发生的原因。
The numerical simulation of the new type of DNG is studied by using FDTD method and CST software, and the physical mechanism analysis for this structure is discussed in detail.
利用FDTD(时域有限差分)方法对多根未加载的细线天线以及加载的细线天线瞬态响应特性进行了数值模拟。
FDTD method was used to numerically simulate the transient radiating and scattering characteristics of thin wire antennas and linearly loaded thin wire antennas.
为在时域进行大型结构的气动弹性动力响应分析，必须首先模拟该结构所受到的气动荷载或所处自然风场的时间历程。
To carry out the dynamic response prediction of a large structure subjected to a stochastic wind field in time domain, it is required to simulate time histories of wind loads or the wind field.
然后，通过时域有限差分技术模拟了非线性的光子晶体的双稳行为。
Then, the bistable behaviors of nonlinear PC defects are simulated by use of the finite-difference time-domain technique.
利用FDTD(时域有限差分方法)对多根细线天线的瞬态响应特性进行了数值模拟。
FDTD (Finite Difference Time Domain) method was used to numerically simulate the transient radiating and scattering characteristics of thin wire antennas.
本文对时域近远场变换的间接频域算法和直接时域算法进行了数值模拟和分析。
The indirect frequency-domain algorithm and the direct time-domain algorithm are analyzed through numerical simulations.
本文对时域近远场变换的间接频域算法和直接时域算法进行了数值模拟和分析。
The indirect frequency-domain algorithm and the direct time-domain algorithm are analyzed through numerical simulations.
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