但该方法仅适用于单分量信号，且需要较高的信噪比环境。
But it only is applied into mono-component signals and demands higher signal-to-noise environment.
多分量信号瞬时频率可以利用TLSESPRIT结合数理统计的方法获得。
By using the method of the TLS ESPRIT combined with the mathematical statistics, the multi component signal's IF can be obtained.
首次提出利用TLS -拓广esprit结合数理统计方法求解多分量信号平均频率。
The method of TLS-ESPRIT combining the mathematical statistics is presented for obtaining the multi-component signal instantaneous frequency (IF).
用流向速度分量信号的多尺度子波系数作为特征量检测平板湍流边界层多尺度相干结构。
The multi-scale coherent eddy structure in turbulent boundary layer is detected through taking multi-scale wavelet coefficient of stream velocity component signal as characteristic quantity.
多分量信号的时频分布会产生交叉项，采用固定核函数的时频分布，其适用的信号形式有很大的局限性。
Time-frequency distribution(TFD) of multi-component signal can produce cross-components, TFD with fixed kernels perform well only for limited signals.
模拟信号由直流和交流分量、频率和相位四部分组成。
An analog signal is composed of four basic components: DC and AC magnitudes, frequency, and phase.
同时，计算机仿真说明，只要参考输入中信号分量较少，自噪声有源抵消器仍然可以达到较好的降噪效果。
Computer simulations also validate that the good attenuation effect can be obtained in the active self noise canceler if the signal component in the reference input is small.
通过对调制信号作谱分析，以其频谱中是否存在某种故障的特征频率分量来诊断有无该种故障。
The fault is diagnosed by extracting the fault feature component from the frequency spectrum of the modulated signal.
我们不仅知道信号中都有什么频率分量，还知道各自出现的时刻。
We not only know what frequency components are present in the signal, but we also know where they are located in time.
采用含有丰富谐波分量的窄脉冲电流作为励磁信号对非晶丝直接励磁，使传感器具有灵敏度高、响应快的优点。
The magnetic sensor has characteristics of high sensitivity and quick response due to the amorphous wires excited directly by sharp pulse train current containing amount of harmonic signals.
快速傅里叶变换(FFT)是电力系统进行谐波分析的主要算法，但当输入信号中含有衰减直流分量时，FFT算法会产生较大的误差。
Fast Fourier transform (FFT) is the main algorithm for harmonic analysis in electric power system, but when there is the decaying DC component in input signal, FFT algorithm will have higher error.
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.
实验和模拟结果均表明：采用简化方案时转换输出的伪归零信号所包含的时钟分量的强度小于采用抽运探测方案的情况。
Both of them shows that the clock component contained in the converted PRZ signal obtained using the simplified scheme is weaker than that using the pump-probe scheme.
通过预处理滤除工频周期分量，消除了小波变换在信号峰值处的模极大值，从而避免了对故障的误判。
As wavelet module maxima occur at peaks of signal, the pretreatment removes power frequency periodic components from electric signal and thus avoids misjudgments of fault.
色散能够改变混沌信号每个频谱分量相位，但不影响混沌信号频谱形状；
The dispersion can change the phase of frequency spectrum component of the chaotic signal, however, it cannot affect the spectrum shape of the chaotic signal.
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。
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.
本文提出在宽带相关噪声中，提取窄带信号谱分量的一种高分辨率谱分析方法。
In this paper, a high resolution technique for detecting the presence of frequency components of a narrow-band signal in the broad-band correlated noise is examined.
目的了解数字视频信号的分量记录格式基础———DV记录格式及其帧内压缩原理。
Aim To find out the base of component track record format of the digital video signal, the DV-record format and the compressed principle in a single frame.
能测量含有直流分量的交流电压信号。
It can also be used to measure the AC voltage signal with superimposed DC component.
这些信息可以用于分离信号分量，设计适合于每个分离分量的光滑核。
This information is used to isolate the components, and smoothing kernels are designed using the properties of each isolated component.
通过数字模拟实验与齿轮箱故障信号检测，验证了新的双线性时间-频率分布对复杂信号中瞬时分量的探测效果。
By digital simulation and detection of gearbox fault signal the detection effect of the novel bilinear time-frequency transform is validated for the transient components in complex signal.
发现了建立过程的平滑作用可以明显地削弱信号的谐波分量，并存在一个最佳转换频率，使谐波失真达到最小值。
It shows signal harmonics is obviously weakened by the smoothing action in the setting process and there is a best conversion frequency to minimize harmonic distortion.
全波傅氏算法是基于周期信号推导出来的，当采样信号中含有衰减直流分量时，将会产生误差。
The decaying DC component in the sampling signal will bring errors to the full-wave Fourier algorithm, which is derived with periodic signal.
但由于模态混淆，当信号组合分量的频率太接近时，HHT常不能正确分解窄带信号。
But when the frequency of components is too near, HHT cannot shift the narrowband signal because of mode confusion.
通过RLS自适应滤波器，背景杂波分量被准确地预测并从输入信号中去除，从而只剩下目标信号与残留噪声。
The clutter is predicted exactly and subtracted from the input signal by RLS adaptive filter, leaving components of the target signal in the residual noise.
在低频分量部分，基于HVS视觉模型，将水印信号逐点变化地嵌入到原始图像中；
In low frequency sub band, the watermarking is embedded into host by the way of pixel-to-pixel embedding according to HVS model.
在低频分量部分，基于HVS视觉模型，将水印信号逐点变化地嵌入到原始图像中；
In low frequency sub band, the watermarking is embedded into host by the way of pixel-to-pixel embedding according to HVS model.
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