在人的QRS复合波的时域频域分布特征及发生机理问题上曾有过许多争论。
There was much contention on distributive characteristics and their production mechanism of person′s QRS complex in time and frequency domain.
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 time-frequency domain sampling characteristics of periodic signal, the truncation error and the spectrum leakage error caused by asynchronous sampling are discussed in detail.
该系统能对输入信号的频谱进行分析，实时输出连续波频谱或脉冲波的时域频域信息，并已测试成功。
The system which is test successfully can analysis the frequency spectrum of input signal and export spectrum of the continuous wave or the information in the frequency-time of the pulse.
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.
管道中非稳定流动的分析方法主要有频域法和时域法。
The main analytical method of unsteady flow in pipelines includes frequency domain analysis and time domain analysis.
其次论述了常用的故障诊断方法，即时域分析方法和频域分析方法。
Then the time domain analysis methods and frequency domain analysis methods which are frequently used for fault diagnosis have been discussed.
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.
小波函数是具有时域和频域良好局部化特性的函数，理论上可以用于非整次谐波的检测。
The wavelet function is such a function which possesses good localization characteristics, so theoretically it can be applied to the detection of non-integer harmonics.
桥梁的抖振分析，有频域和时域两大类方法。
The buffeting of Bridges can be analyzed in frequency domain and in time domain.
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.
本文将时域透射边界应用于频域。
The transmitting boundary in time domain has been applied to frequency domain.
本文给出时域辨识与频域辨识相互补充的一些事实。
This paper gives some complementary pictures of the time domain approach and the frequency domain approach in system identification.
分析了时域法、频域法对不同类型误差的敏感程度。
The dissertation also presents the sensitivity of time domain method and frequency domain method to different kinds of error.
对信号的时域和频域上的常用参数进行了统计。
Common parameters of signal in time domain and frequency domain were statistics.
它实现了各个信号的时域和频域的图形的绘制。
It realizes graphics protraction of time and frequency domain in every time period.
在对时域和频域数据分析的基础上，论述了旋转失速和喘振状态下叶片振动响应的特征。
Based on data analysis in both time and frequency domain, characteristics of blade vibration response at rotating stall and surge condition are introduced.
首先对语音音素进行时域、频域、能量值的提取，然后通过计算得到每个采样点的组合特征值，描绘成图像。
Firstly, phonemes should be extracted on the time domain, the frequency domain and energy then the combination character of each sample and map figure were calculated.
从激光器的单模速率方程出发，利用数值方法研究了在不同的增益开关状态下，输出光脉冲的时域及频域特性。
With numerical calculation from single mode rate equation of semiconductor laser, the output pulse parameters in time and frequency domains are investigated under different gain switching conditions.
本文还从时域和频域分析了这类正交脉冲波形的特性。
The performance of the orthogonal pulse waveforms is also analyzed in time domain and frequency domain.
在时域和频域上进行了微弱荧光信号的寿命检测的研究。
Both on time domain and frequency domain, the detection for lifetime of weak fluorescence signal is studied.
说明：本程序的基本功能是对信号进行傅里叶变换，并同时提取出他的时域和频域的特征值。
The basic function of this program is the signal to Fourier transform, and the simultaneous extraction of his time domain and frequency domain characteristic values.
它对变形的时域分析和频域分析有着重要意义。
It is very important for deformation analysis in time and frequency domains.
基于恢复理想信号频谱的逆滤波原理，利用通道均衡法对接收通道的失配进行了校正。 通道均衡可在时域或频域实现。
The way, based on the principle of inverse filtering for recovering the ideal signals, can be realized both in time domain and in frequency domain.
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。
Radar signal digital pulse compression processing can be realized mostly by time-domain and frequency-domain methods.
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。
This article analyzes the plant electrical signal in time domain and frequency domain by using the statistical analysis method.
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.
设计中主要是对SSB已调信号进行时域和频域分析。
Design mainly SSB signals have had time and frequency domain analysis.
音频分析被广泛用于测量各类音频系统的时域特性、频域特性及失真特性等。
Audio analysis is widely used to measure time domain, frequency domain and distortion characteristics of various audio system.
音频分析被广泛用于测量各类音频系统的时域特性、频域特性及失真特性等。
Audio analysis is widely used to measure time domain, frequency domain and distortion characteristics of various audio system.
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