Time-frequency analysis method has been applied in many fields, and it acquires a great of achievements.
时频分析方法已经在许多领域得到了应用，而且都取得了良好的效果。
Based on the engineering practice, the composition, function and design of baseband equipment are explained detailedly, a method for measuring the time delay and frequency is introduced.
结合工程实践，从综合基带的设备组成、功能、设计上进行了详细阐述，并介绍了一种时延测量和频率测量的方法。
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。
Therefore HHT was a kind of new time-frequency method for analyzing and processing the blasting vibration signals.
分析认为HHT是一种全新而更优越的分析与处理爆破震动信号的时频方法。
Wavelet analysis, also called wavelet transform, is a new analysis method with good time frequency localization characteristic, so it is suitable for fault analysis of power system.
小波分析(或称小波变换)是一种新的时频分析方法，它具有良好的时频局部化特性，适用于电力系统故障分析。
A method, based on analysis of time domain and frequency domain, applied in dynamic balance of hydro-generator rotor is presented.
提出了一种基于时域分析和频域分析的动平衡方法，应用于水轮发电机转子的动平衡。
And it presents a efficacious method to enhance precision of real time control, which changes value of clock interrupt frequency by changing divided frequency of system tinier.
同时给出了一种提高实时控制精度的有效方法，即通过改写系统定时器的分频值达到改变定时器时钟中断频率的值。
Then proposes a method to detect the arrival time of instantaneous signal and the frequency composition under strong noise background.
提出了在强噪声背景下检测瞬时信号的到达时间和频率成分的方法。
Actually the kernel design in the recognition method based on discrete time - frequency representation is a problem of feature selection from the ambiguity functions to reduce feature dimension.
基于离散时频分布的信号识别方法，将时频核设计问题转化为以信号自模糊函数为原始特征的特征选择问题，以实现特征降维和信号识别。
It presents a new method of DOA estimation in time-frequency domain, via establishing the STFD matrix and combining the traditional methods of array.
通过构建空间时频分布矩阵，和传统的阵列信号处理方法相结合，从而得到一种新的时频域的波达方向估计方法。
Period characteristics of radiated noise at high frequency is investigated by a method based on short time Fast Fourier Transformation, and propeller speed is estimated.
用短时傅立叶分析的方法研究了辐射噪声在高频段时频变化的周期性，估计了目标的螺旋桨转速。
Fourth, establish a "record of weak character investigation", fill in the content, including time, frequency, weak character state, the investigation of people, and disposal method.
四是建立“薄弱人物排查记录”，填写内容包括时间、班次、薄弱人物状态、排查人、处理方式等。
For the problem of the parameter estimation of multi-component chirp signal in the additive colored noise, a method based on phase difference and time-frequency signal filter was proposed.
针对加性色噪声背景下的多分量线性调频信号参量估计问题，提出了基于相位差分的时频子空间方法。
In this paper, a real time power spectrum analyzer of low frequency random signal based on digital filters is introduced, and a design method of real time arithmetic is given.
文中介绍了基于数字滤波的低频随机信号实时功率谱分析仪的实现方法，并给出了实时算法的设计要点。
The method of pinhole camera which is set up at the cone of a projectile, can record the yaw-time curve directly by a frequency-flash parallel light.
用在弹头上安装针孔照相机的方法，并借助一个频闪平行光源，能够直接记录攻角——时间变化曲线。
Joint time frequency analysis method is a powerful tool for study of this kind of signal.
联合时频分析的方法是研究这类信号的有力工具。
To suppress ionospheric clutter in the echo signal of high frequency surface wave radar (HFSWR), a method to suppress clutter based on time-frequency analysis and eigenvalue decomposition is proposed.
针对高频地波雷达回波信号中的电离层杂波，提出了利用时频分析与特征值分解抑制杂波的方法。
A new algorithm of analysing FM (frequency modulation) interferogram is described. Compared with the Fourier method, it is time saving and suitable for real-time calculation.
本文提出一种无需滤波处理的调频条纹分析算法，该算法与傅里叶技术相比具有省时、便于进行快速、实时位相测量等优点。
A combined channel estimation method of time-frequency-selective fading channels in MIMO-OFDM systems was proposed.
提出了一种适用于时间频率选择性衰落信道的MIMO - OFDM系统的组合信道估计方法。
We advance a novel method for the Single-Input-Single-Output (SISO) time-varying channel estimated of orthogonal frequency-division multiplexing (OFDM) systems.
我们提出了一种单输入单输出(SISO)正交频分复用时变信道估计方法。
Based on the analysis, a new method to detect carrier frequency of FSK signal named time-domain joint and modern power spectrum estimation is put forward.
对电力远动通道FSK信号进行了时域和频域分析，在此基础上提出了一种新的FSK信号载波频率测量方法—时域拼接结合现代功率谱估计的方法。
A method of time field analysis in continuous system is adopted to study the output characteristic and the frequency response of switch type capacitor filter.
为了研究开关式电容滤波器的输出特性和频率响应，采用了连续系统时域分析方法，建立了滤波器的输出特性模型和频率响应模型，并进行了仿真。
A method of understanding and processing ISAR image is presented, which is based on the time-frequency analysis algorithm - improved Adaptive Guassian Representation (AGR).
文中提出一种基于改进的自适应高斯表示(agr)的ISAR图像理解与处理方法。
Then proposes a method to detect the arrival time of instantaneous signal and the frequency compos...
提出了在强噪声背景下检测瞬时信号的到达时间和频率成分的方法。
Due to the good localization feature of the wavelet transform both in time plane and in frequency plane, a wavelet-based de-noise method is presented for extracting EPs in single trails.
由于小波变换在时域和频域上都具有良好的局部化特性，基于小波变换的去噪方法，可以达到从单次样本中提取视觉诱发电位的目的。
The time-frequency analysis method is widely applied to rolling bearing fault diagnosis due to it can simultaneously provide time and frequency domain information of a signal.
由于时频分析方法能同时提供振动信号的时域和频域信息，因而在滚动轴承故障诊断中应用最为广泛。
A method of signal time-frequency representation with phase factor is introduced.
描述了一种带相位因子的时频分析方法。
The concept of local energy in time-frequency plane, based on local wave theory, is defined. Then a new feature extraction method based on the local energy in time-frequency plane is given.
在局域波理论的基础上，引入了时频局部能量的概念，进而提出了一种基于时频局部能量的特征提取方法。
A more precise estimation method of the Zero Doppler Time has been improved, and the frequency synchronization is achieved.
文章改进了零多普勒时间的估计方法，提高了其估计精度，从而较好地实现了频率同步。
A more precise estimation method of the Zero Doppler Time has been improved, and the frequency synchronization is achieved.
文章改进了零多普勒时间的估计方法，提高了其估计精度，从而较好地实现了频率同步。
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