There is no implicit analysis in a frequency distribution-it is simply the statistical representation of what exists in a particular data element or domain.
在频率分布中没有隐式的分析—它只是关于一个特定数据元素或域的内容的统计表示。
In the frequency domain pilot channel estimation, this thesis studies the pilot subcarrier and data subcarrier channel estimation algorithms.
在基于频域导频的信道估计中，研究了导频子载波处的信道估计方法和数据子载波处的信道估计方法。
Based on data analysis in both time and frequency domain, characteristics of blade vibration response at rotating stall and surge condition are introduced.
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。
Since the flight test data are of time domain, it needs to be converted into frequency domain by FFT method. Then it can be used to identify the system.
由于飞行试验数据是时域数据，使用这种方法需要使用FFT的方法将实测的时域数据转换成频域数据后再进行辨识。
Meanwhile, data of complete time domain waveform is needed in order to calculate accurate S-parameters of frequency domain via fast Fourier transform (FFT).
而要通过快速傅立叶变换(FFT)获得准确的频域参数，又必须得到完整的时域波形数据。
With the bus fed static excitation system, based on field-test data and using frequency domain analysis, the hysteretic characteristics of excitation system wer.
以自并励励磁系统为例，根据实测数据利用频域分析，得到励磁系统滞后特性。
It copies the original data stream to several parallel data streams, spreads them in both time and frequency domain, then modulates them to orthogonal sub-carriers for transmission.
它先将原始数据流复制成多路并行数据，经频域扩频和时域扩频，再调制到互相正交的子载波上传输。
It is convenient to use frequency domain methods to deal with flight test data.
在飞机飞行试验的数据处理过程中，采用频域方法是比较方便的。
Pressure data were analyzed by wavelet transform in wavelet domain. Frequency band energy spectrum and intensity index of ISW based on wavelet coefficient were obtained.
通过基于子波的分析方法，对压力数据进行了分析，获得了基于子波系数的频带能量谱和冲击波强度指数。
In this paper, an adaptively weighed method based approach is proposed for data compression of complex-valued SAR images in frequency domain.
该文提出了一种基于自适应加权方法的复值SAR图像的频域压缩改进算法。
Some experiments have showed that the corrected time domain data agree well with the measuring results directly in the frequency domain.
实验表明：修正后的时域数据与频域直接测量结果非常吻合。
Use relative signal processing method to pre-processing data, make time domain and frequency domain analysis, calculate the ride index and comfort, obtain relative results and export reports form.
应用信号处理相关处理方法对数据进行预处理，时域、频域分析，进行平稳性指标、舒适度计算，得出相关处理结果，输出报表。
The lung sounds data analysis USES time domain analysis, frequency domain analysis, power spectra analysis, time-varying spectra analysis and so on.
肺音分析采用了时域分析、功率谱分析、时变谱分析、同态处理等多种分析算法。
A new way that generates simulation data from both time domain and frequency domain w...
采用时域和频域图形生成数据的新方法，为模拟数据的产生提供了简化的手段。
The complex data samples are directly extrapolated to obtain the extrapolated echo data in the frequency domain.
对于频域，直接对散射场回波复数据进行外推，可获得外推散射场。
By investigating the code space in frequency domain and the data vector space of the multipath signals, the noise-subspace-based approach is used to perform blind channel estimation.
通过研究多径信号频域码空间和数据矢量空间，采用噪声子空间技术进行盲信道估计。
It also can process the stored data in time-domain, frequency-domain and amplitude-domain so as to extract signature, analyze trend and locate the fault.
对存储的数据可在时域、频域、幅值域进行特征提取、趋势分析以判定故障的位置与性质。
After equalization, data from one transmit antenna on all frequency tones are processed together and transformed into time domain.
单频点均衡后，联合考虑一根天线上发送数据所有频点的值，然后把他们转化到时域。
Proton NMR two dimensional time-domain data are collected based on the inversion-recovery technique. Double Fourier transformation of those data yields the two dimensional frequency-domain data.
基于反转恢复法建立质子nmr二维时域数据，经双重付里叶变换获得二维频域数据。
This system has trend forecasting, history data querying, and fault diagnosis ways in the time-domain, frequency-domain and amplitude-domain.
具有便捷的趋势预测分析，历史数据、故障数据查询功能，和完善的故障诊断方法，能够在时域、频域、幅值域对设备进行故障诊断。
According to the filed data, the mode of stress wave to be picked up is selected and the characteristic changes of stress wave signals in time and frequency domain are analyzed.
根据现场测试的数据，选择应力波检测模式，并分析了应力波信号随检测距离的时频特性变化。
The relation between least square collocation and data resolution is discussed based on the form in frequency domain of the principle of least mean square error.
最后，基于装备体系作战能力的数值分析，提出了在战争模拟中基于多分辨率数据的多分辨率建模方法。
Formulas for 3d migration of seismic data in frequency-wave number domain are derived. The software and procedure used on medium -sized computer and minicomputer are given.
在频率-波数域中，详细地推导出了对地震记录进行三维偏移归位的全部计算公式，并给出了能在中小型计算机上实施的程序结构和流程。
Formulas for 3d migration of seismic data in frequency-wave number domain are derived. The software and procedure used on medium -sized computer and minicomputer are given.
在频率-波数域中，详细地推导出了对地震记录进行三维偏移归位的全部计算公式，并给出了能在中小型计算机上实施的程序结构和流程。
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