A new method to reconstruct the lossy multi-layered media is presented by using a time domain signal flow graph technique.
借助于时域信号流图提出一种重建有耗多层媒质的新方法。
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.
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。
The frequency and amplitude and phase of discrete spectral lines can be calculated through two DFT analyses one after another, which is one complex time domain signal analysis virtually.
相继两次DFT分析（实为一次复时域信号分析）可精确确定诸分立谱线的频率、幅度与相位。
Here, secondary treatment methods are introduced in detail, include time domain signal statistics character, frequency analysis fast Fourier transform (FFT), and short time Fourier transform (STFT).
这里，主要对二次处理的方法作了详细的介绍，包括时域信号的统计特征，频域分析的傅立叶变换和短时傅立叶变换。
This notion of inter-domain transformation is useful in many fields of study-for example, moving from the time domain into the frequency domain in the field of signal processing.
这种域间转换的概念在很多领域的学习中都很有用—例如，信号处理领域中从时间域移入频率域。
Modulation Domain and Pulse Analyzer(MDPA) analyzes signal using a plane domain which is consisted of frequency and time.
调制域及脉冲分析仪利用时间和频率构成的平面域对信号进行分析。
"Modulation domain" is a plane domain which is consisted of frequency and time signal axes.
“调制域”是由信号的频率和时间两个轴构成的平面域。
The three analog signal types are the DC signal, the time domain (or AC) signal, and the frequency domain signal.
三种模拟信号分别为DC信号，时域(或ac)信号，以及频域信号。
And the signal system can be analyzed in the time domain, can also frequency domain.
对信号和系统进行分析研究可以在时间域，也可以在频率域。
Common parameters of signal in time domain and frequency domain were statistics.
对信号的时域和频域上的常用参数进行了统计。
Fourier transformation in time domain and frequency domain is one of the main methods for modern railway signal detection.
时域分析和傅氏变换的频域分析方法是现代铁路信号检测的主要方法之一。
Both on time domain and frequency domain, the detection for lifetime of weak fluorescence signal is studied.
在时域和频域上进行了微弱荧光信号的寿命检测的研究。
This article analyzes the plant electrical signal in time domain and frequency domain by using the statistical analysis method.
应用统计分析方法对植物电波信号进行了时域和频域上的分析。
Modulation domain analysis has become an important part for modern measurement technology. It is better than time domain and frequency domain measurement when indicating frequency variable signal.
调制域分析已经成为现代测试技术不可或缺的部分，在显现频率变化信号时优于时域测量和频域测量。
Compared with the original two kinds of Phase-Difference Correction, only one sequence of time-domain signal is sampled and FFT analysis of same points is performed twice in this method.
与原两种相位差法相比，这种方法只采一段时域信号，且进行两次相同点数的FFT分析。
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).
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。
The system implements intellectualized transducer setting signal synchronous display in time and frequency domain as well as other multiple signal processing functions.
该系统利用软件实现了智能化的传感器设置、实时采集时的时域信号、频域信号同时显示和多种数据处理分析的功能。
The Du-conversion is one that converse the signal from time domain to gate-width domain and uses the wide spectrum density of the signal to show its characteristics.
杜氏变换是一种将信号从时域到门宽域的变换，用信号的宽谱密度来描述信号的特征。
However, the information extracted from a frequency domain signal is based on the signal frequency content, as opposed to the shape or time-varying characteristics of the waveform.
然而，从频域信号中提取出的信息是以信号频率成分而非信号形状为基础。
A method for time domain fast diagnosis of a signal of the characteristic changes, of the power spectrum is proposed.
本文提出了在时域中快速诊断信号功率谱特征变化的方法。
A concept of Ultra wideband radar signal is proposed, and then a time domain imaging algorithm is presented to reconstruct far field images of conducting objects.
给出超宽带雷达信号的概念，提出由超宽带雷达信号散射远场重建理想导体目标简捷的时域成像公式和实现算法。
These methods are classified into three categories:statistical signal processing, frequency domain analysis and time-frequency analysis.
这些方法包括：统计信号处理，频域信号处理和时频域信号处理方法。
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.
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。
Parametric Autoregressive (ar) model is the traditional time-domain EMG signal analyzing method.
自回归(AR)参数模型是传统的肌电信号时域分析方法。
The time-frequency domain sampling characteristics of periodic signal, the truncation error and the spectrum leakage error caused by asynchronous sampling are discussed in detail.
讨论了周期信号取样的时域频域特性、非同步取样引起的截断误差和频谱泄漏误差。
The authors propose a new method with combination of time domain and frequency domain by using the time-frequency distribution image of the radar signal.
借助于雷达信号的时频分布图像，提出了一种在时频联合域上进行信号识别的新算法。
The linear and quantitative nondestructive test of the grain defect is realized by using time-frequency domain character of the ultrasonic defect signal.
利用超声缺陷信号的时频域特征，较好地实现了该类型药柱的线性定量无损检测。
Radar signal digital pulse compression processing can be realized mostly by time-domain and frequency-domain methods.
雷达信号数字脉冲压缩处理主要采用时域和频域两种方法来实现。
Waveform analyzer is one of the most important signal measuring instruments, which can accurately analyze the characteristics of the signal in time-domain and frequency-domain.
波形分析仪是最重要的信号测量仪器之一，可以对信号时域特性、频域特性以及相关特性作高精度分析。
Waveform analyzer is one of the most important signal measuring instruments, which can accurately analyze the characteristics of the signal in time-domain and frequency-domain.
波形分析仪是最重要的信号测量仪器之一，可以对信号时域特性、频域特性以及相关特性作高精度分析。
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