该方法通过应用多个时间步长替代传统非均匀时域有限差分(NU - FDTD)法的单一时间步长的算法来提高计算速度。
The algorithm USES multi-time steps to replace single time step in traditional non-uniform finite-difference time-domain (NU-FDTD) method to enhance the computing speed.
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.
如果总时间增加了,那么就不那么需要对采集的时域数据施加大的阻尼窗了。
If the total time is increased, then there is less need for a significant amount of damping window to be applied to the collected time data.
在此基础上讨论了在不同时间相关性杂波背景下时域采样的增加对检测性能的影响。
Further, the paper discusses the influence of increasing the time samples on the detection performance under different coherent clutter background.
传统的傅里叶分析由于在时域不能局部化,难以精确检测到信号发生突变的时间。
Conventional Fourier transform can 't localize in time field, so it can' t inspect signal 's break time accurately.
在符元时间侦测上,提出的方法可以在未知先导讯号编号的情形下在时域上估测。
The proposed method of symbol time estimation can be designed on time domain without known preamble index.
采取时域分析法,对实验中的暂态过程进行分析,适当调节系统过渡阶段的时间间隔,使之尽快达到稳定状态。
Analysis the prompt state in the course of the experiment through time-section method. Adjusts the time space in transition period to make it into a steady state soon.
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.
辅助长码直捕的一个最重要的先验信息是时间信息,卫星信号传播时延估计是减少时域搜索范围的一个重要方面。
Time is important information for fast and direct acquisition of military code, and compression of signal's propagation delay time uncertainty is an effective means for it.
针对被检测信号具有长时间域、瞬变特征波形的时域位置不确定等特点,提出一种扩展游程编码数据采集方法。
This paper proposes an extended RLC(Run Length Code)data acquisition method. The detected signal has the feature of long time lasting and transienting characteristic waveforms.
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.
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。
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.
文献研究表明,在电子耳蜗连续交替取样策略中,时域信息特别是包络随时间的变化轨迹对汉语声调识别有重要影响。
Recent studies have revealed temporal waveform envelope cues as a function of time having significant influence on tone recognition in continuous interleaved sampling(CIS) of cochlear implants.
采用变换法则对时间序列进行从时域到频域的转换,再将转换后的数据按照一定的规则变换成字符序列;
This paper proposes a method by translating the series from time domain to frequency domain, then to a string sequence.
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.
基于时域混叠信号的特点,提出了一种时间延迟估计的新方法。
Based on the characters of overlapped echoes, a new method for time delay estimation is presented.
针对多区域切比雪夫伪谱时域算法稳定性方面的问题,采用隐式和显式两种时间积分方式对此进行改善。
The implicit and explicit time integration schemes are used to improve the stability condition of the MCPSTD algorithm.
而上升时间和带宽,前者是时域中的术语,后者是频域中的术语,它们是紧密联系的。
The rise time and bandwidth, the former term is the time domain, frequency domain, which is the term, they are closely linked.
在本文文章中,介绍了一种基于时间步进法求解介质目标、金属非金属组合目标时域积分方程的精确,稳定的方法。
In this paper, we will introduce an accurate and stable method which bases on mot to solve dielectric objects and metal - nonmetal composite objects.
直接从时间域出发,应用时域有限差分方法(FDTD)分析地下和地面的瞬变响应。
In this paper we analyze the transient responses directly in frequency domain using time domain difference (FDTD).
目的:评价信号平均心电图(SA-ECG)时域分析和频谱时间标测在预测冠心病心律失常事件(AE)方面的差异。
Objective:The purpose of this study was to compare time domain analysis (TDA) of signal-averaged electrocardiogram (SA-ECG) with spectrotemporal mapping (STM) in predicting arrhythmic events (AE).
本文在已建立的天线时域近场测试系统的基础上,从实验的角度,对“时间窗”参数在天线时域平面近场测试中的影响进行验证分析。
On basis of the time-domain experimental system built, the effect of time-gate on antenna planar near-field measurement in time domain is analyzed.
在本文文章中,介绍了一种基于时间步进法求解介质目标、金属非金属组合目标时域积分方程的精确,稳定的方法。
In this paper, we will introduce an accurate and stable method which bases on MOT to solve dielectric objects and metal-nonmetal composite objects.
时间尺度变换就是使信号在时域上压缩或扩展而幅度不发生变化。
The basic objective of time scale transformation is to compress or expand the signal in time field while keeping the same amplitude.
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.
该文在分析了时间序列模型的自回归系数对结构单元刚度灵敏度的基础上,提出了一种采用随机载荷作用下结构的时域响应数据进行损伤识别的新方法。
A new method is developed for identifying structural damages at the element level by using time-domain response data at a few points caused by random loadings.
临界机组群单机等面积定则第一摇摆稳定判据与时域仿真角度准则精度相同,但具有数值积分时间短的优点;
The proposed critical machine group single machine equal area criterion needs less computation time compared with the traditional time domain simulation.
提出基于阶跃响应在时域解析测定地震计参数的方法,并对合理确定响应的时间零点提供了一种方法。
A method has been developed to obtain analytically the seismometer parameters in time domain based on the step calibration function.
提出基于阶跃响应在时域解析测定地震计参数的方法,并对合理确定响应的时间零点提供了一种方法。
A method has been developed to obtain analytically the seismometer parameters in time domain based on the step calibration function.
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