汽车道路时域模型是基础性道路数据库的主体部分。
The time domain model of vehicle road is the key component of road database.
时域平均法是从混有噪声的信号中提取周期性分量的最有效方法。
The time domain average method is an efficient method to extract period components from the signal mixed with noise.
本文主要就新型天线测量技术——时域近场测量技术的几个关键性技术进行了研究。
Some key techniques of a new antenna measurement technique, time-domain near-field antenna measurement technique, are presented in this paper.
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.
时域离散卷积和相关运算一般耗时太长,对信号进行处理的实时性较差。
Operation of discrete convolution and discrete correlation will spend too much time to process a signal in time.
用时域分析方法研究了横浪情况下渔船舷侧起网时的横摇运动及其安全性,分析了起网力矩对横摇运动的影响。
This paper deals with the rolling motion and safety for fishing vessels in beam seas during hauling, and analyses effects of the hauting moment to rolling motion.
时域分析表明,设计的预测控制器对外部正弦干扰有较强的鲁棒性,得到的结果关于二次型平均性能指标是次优的。
Time domain analysis shows that this predictive controller is of stronger robustness to external sinusoidal disturbances, and is suboptimal with respect to quadratic performance indexes.
同步信号嵌入时域,以提高搜索效率,水印隐藏在离散小波变换域的低频系数中,以达到较好的鲁棒性。
Search efficiency is improved by embedding synchronous signals into time domain. Better robustness is achieved by hiding the watermarking into the low frequency coefficient of DWT domain.
通过时域波形和频谱等基本分析手段来探测振动加速度信号中的周期性冲击分量往往是困难的。
It is difficult to detect the periodic impulse component in the vibration acceleration signal with conventional analysis methods such as time domain wave and frequency spectrum.
数字信号的时域分析有眼图、矢量图、星座图、相关性、同步等途径。
The methods of Time-Domain Analysis consist of eye diagram, vector diagram, constellation diagram, correlation, synchronization, etc.
时域相对比较熟悉,频域则非常有助于理解和掌握许多信号完整性效应,两者之间可通过傅立叶变换相互转换。
Relatively familiar with the time domain, frequency domain is very helpful to understand and master the many effects of signal integrity between the two can be FFT conversion.
它通过对时域信号波形图中闭合曲线的面积进行相关性分析,从而达到简便、高效、高精度、高可信度地提取音调的目的。
It analyses areas of close curves in time-domain graph of signal waveform, so that we can detect the pitch conveniently, efficiently, precisely and reliably.
从理论上定义了基于高斯脉冲成分分析的激光脉冲时域响应的偏离度参数,并且通过实验验证了该定义的有效性。
Based on the Gaussian pulse component analysis, a new deviation of laser pulse system in time-domain is defined, and its validity is further verified experimentally.
通过对大量野外面波测试信号的分析发现时域信号与测试区域地质具有很大的相关性。
It is found that strong relativity exists between surface wave time domain signal and testing sections geological condition by means of studying on characteristic anal.
采用空间数据特征比较、时域聚类、相关性分析,综合利用配电网络GIS数据模型和计算机技术对配电网络进行深入的研究。
It adopts space data characteristic compare, cluster analysis and correlation analysis, and synthetically utilizes GIS data model and the technology of computer to analyze the distribution network.
本文在详细分析了球拍运动的周期性特点的基础上,提出了一种适合于周期性结构得分型比赛的通用规则,即时域投票策略。
By analyzing the periodicity characteristic of racquet sports, we propose a general fusion rule, temporal voting strategy, which is suitable for analyzing periodic structured scored game.
通过位移预补偿方式减小了时域微分估计中的不准确性,极大地提高了光流计算精度。
However, the error of the optical flow estimation derived from the error of temporal differential estimation is not taken into account in above methods.
为了提高红外图像序列中弱小目标的信噪比和检测概率,同时考虑检测算法实时性,提出了一种新的基于空时域滤波的小目标检测方法。
To improve the Signal-to-noise Ratio(SNR) and detecting probability of small target in infrared image sequences, a novel method of target detection based on spatial-temporal filtering is proposed.
本文提出的分立谱线辨识方法普遍适用于各种周期性时域信号的精密谱分析工作。
The method of discrete spectral line identification presented in this paper applies to the precise spectral analysis of all kinds of periodic time domain signals.
对其时域波形中主波的潜伏期、反应阈进行分析,并与豚鼠听性脑干反应(abr)时域波形进行比较。
The waveform and its latency of SOC AEP and LL AEP were analyzed and compared with that of auditory brain stem (ABR).
此算法不仅具有多区域伪谱时域算法分析任意曲边形体问题的精确性和灵活性,而且稳定性和效率也相应地提高。
This algorithm not only maintains accuracy and flexibility of PSTD for an accurate treatment of arbitrarily curved objects, but also improves stability and efficiency.
该方法根据噪声时域特性将其分为结构性噪声和非结构性噪声两类,它们对统计检验功效造成的影响在文中分别进行了讨论。
The fMRI noise is classified into structured and unstructured noise by their temporal characteristics, and their impacts to efficiency of statistical tests are discussed separately.
讨论了利用傅里叶级数把连续周期时域信号转换成离散的频域信号的必要性。
This paper describes the need to transform the continuous periodic signal in time domain to the discrete signal in frequency domain by using Fourier Series (FS).
经小波变换的三维心音图更为直观详尽地反映出各组心音信号在不同时域、频域与强度范围内细节性的信息。
The three-dimensional phonocardiogram after wavelet analyzing could describe all the information of frequency domain, time domain and amplitude domain perfectly.
小波分析理论是近年来广泛使用于图像处理领域的有效工具之一,具有时域和频域的双重局部性、多尺度分析、计算的快速性等特点。
The wavelet transform theory is one of the effective tools mat widely apply to image processing recently, which have charicrictics of multiresolution analysis, fast working time, etc.
针对钢结构有限元建模中出现的问题,提出基于时域下的模型相关性检验方法。
In order to solve the problem of finite element model in steel structure, the checking method on correlativity of models is put forward based on time domain.
本文应用一致性时域有限差分法(FDTD)和近场远场变换计算散射声目标的反射声压强度,找出反射声压级与目标声中心到换能器间距离的关系。
Using the finite difference time-domain (FDTD) method and near field to far field transformation, pressure of the reflected sound from the scattering target is calculated.
由于这种方法能较好地反映地面运动的时域非平稳性,所以得到的计算结果更真实。
The results may better reflect the non-stationarity of ground motion in time domain and are closer to reality than those by wave theory and stationary random vibration theory.
功率谱密度值与时域指标体温反应指数(TRI)有极好的相关性。
A high degree of relationship was found between the power spectral density and thermal response index (TRI).
几个典型数值算例表明,利用本文方法求解时域积分方程的结果具有非常好的后时稳定性和精确性,并且对低频成份、高频成份不敏感。
Several numerical results show that the proposed method is stable and accurate, and it is nearly not sensitive to the high -, low-frequency component of the incidence wave.
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