在此基础上,重构了谐波信号的幅值、相位及频率。
On the basis of this, the harmonic signal is reconstructed by means of the method.
本文讨论有噪声污染的谐波信号累量的单一记录估计。
This paper considers the single record estimators for cumulants of sinusoids in additive noise.
研究了银膜表面由于吸附吡啶分子而引起的表面二次谐波信号变化。
The changes in the SH signal due to adsorption of pyridine molecules on the Ag film were investigated.
这三种关系在多次谐波信号中可能同时存在,也可能存在一种或两种。
The all relations maybe exist at the same time in the harmonic signal, possibly one or two of them exists only.
谐波信号和有限实际地震记录的应用表明,本方法具有较高的识别精度。
By application of some harmonious signals and real seismic records, the precision and stability of the method are proved.
本文研究了一种估计有色噪声中多组谐波信号参数的去耦参数估计算法。
In this paper, a decoupled parameter estimation (DPE) algorithm for estimating parameters of the harmonic-group signal in colored noise is researched.
本文研究了一种估计有色噪声中多组谐波信号参数的去耦参数估计算法。
Study on Static Decoupling and Signal Denoising for Multi-axial Wheel Force Transducer;
在加性噪声情形下,惩罚函数方法是一种简洁有效的谐波信号个数估计方法。
Penalty function based method is a very effective method to estimate the number of sinusoid in presence of additive noise.
其测量信号是经过TA末屏电压信号放大器引入谐波信号数字测量分析系统的。
Its measurement signal is to lead into harmonic signal digital measurement analysis system via ta end screen voltage signal amplifier.
因而,新窗函数谐波分析方法特别适用于分数次谐波分析,且能提高弱谐波信号的分辨能力和准确度。
So it can be applied to fractional-harmonics analysis more preferably and therefore improve the resolution capability of weak harmonic component and accuracy of harmonic analysis.
在Nd:YAG强激光光场的作用下,薄膜样品中观察到二次谐波信号,并分析了二次谐波发生的机理。
The optical second harmonic signal was observed using a ND:YAG laser, The mechanism of SHG was discussed.
准确提取五次谐波信号和较灵敏的检测漏电保护启动值是谐波方向型高压电网漏电保护需要考虑的关键因素。
Extract the 5th harmonic signal accurately and More sensitive detection leakage protection launched is the key factor in harmonic direction type of HV distribution networks leakage protection.
对晶闸管CO2焊接电源焊接过程主变压器一次侧产生的谐波信号进行采集分析,以此研究焊接电源对电网的影响。
This paper collects and analyzes the harmonic signals of the CO2 welding machines main transformer, by which researches the effect of welding power source on the main.
为了克服小波固有的缺陷,本文构造了一种组合小波,并利用它实现了对电力暂态谐波信号含量及频率的准确检测。
To conquer the old wavelet inherent shortcoming, a combine wavelet is designed and used to realize the accurate detection to harmonic contents and frequency of power quality transient signals.
本文方法克服了以往的困难,成功地解决了对称分布非高斯噪声背景下和谐波信号中存在二次相位耦合时的谐波恢复问题。
This method succeeds in harmonic retrieval in colored non Gaussian noise, especially when the noise is symmetrically distributed or there exist quadratic phase coupled cosinusoids.
其中提出了一种基于FFT的“谐波组迭代清除算法”来估计谐波信号的参数,并根据“谐波图”的值来确定谐波信号的个数。
In this algorithm, a "iterated harmonic-group clean algorithm" is presented to obtain the estimates of the parameters of the harmonic signal based on FFT.
分别针对间谐波数值仿真信号、调幅信号及电弧炉电流作间谐波分析,结果表明:该方法抗噪声能力强、检测精度高,尤其对时变性较强的调幅性间谐波信号具有强适应性。
The simulation results show that the method has high antinoise capability, higher detection accuracy and the better adaptiveness to the amplitude inter harmonics signal of time change especially.
由于在小波降噪中不同的阈值适应的信号特征不同,采用多种小波阈值对城市轨道交通牵引供电系统谐波信号进行降噪,并从中选择了最优的降噪阈值,达到对信号的优化处理。
Due to different wavelet threshold fit for different characteristic of signal, various wavelet de-noise threshold was used to decline the harmonics of signal and the best threshold was chosen.
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.
提出了一种利用谐波反电势信号实现电机转子位置检测的新方法,设计了与电机一体化的新型位置传感器。
A novel method that USES the harmonic back EMF signal to extract the rotor position is put forward, and a new position sensor merged into an organic whole with the motor is designed.
针对磁通门传感器检测到的环境磁场强度信号,运用谐波选择法,设计了磁通门信号处理电路。
This paper adopts harmonic choice method to design fluxgate signal processing circuit in allusion to the environment magnetic field strength signal of fluxgate sensor detecting.
本文提出了一种“谐波组清除算法”来估计周期信号的参数。
In this paper, we present a "harmonic group clean algorithm" to obtain the estimation of the parameters of the periodic signal.
在此基础上研究了利用谐波反电势信号实现混合式步进电动机闭环控制的方法,设计了步进电动机的微机控制系统。
On this base, the closed - loop control method of hybrid step motor using the harmonic back EMF is investigated, and the microcomputer control system of step motor is designed.
这种方法首先对非语言声音信号进行谐波分析,然后对所得到的时变振幅与频率等声音信号参数进行分段线性化。
This technique performs harmonic analysis of the nonspeech audio signals and then the resulted attributes including time-varying amplitude and frequency functions are piecewisely linearized.
对于非线性元件的输出为单值而输入有多值的情况,令输出为正弦信号,输入包含有各次谐波。
If the nonlinear element has a single output and multiple input values, the output signal is taken to be sinusoidal and the inputs contain harmonics.
目的提取直升机声信号谐波频率作为特征用以识别直升机。
Aim To extract harmonic frequencies of helicopter acoustic signal as features for helicopter identification.
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.
研究了利用谐波反电势信号实现混合式步进电动机闭环控制的方法。
In this paper, the closed-loop control method of hybrid step motor using the harmonic back EMF is investigated.
现场实验与仿真都证明了该滤波器能够非常有效地抑制电网中的基波和3、5次谐波,大大提高了对双向工频通信信号的检测能力。
Practical experiment and simulation show that The 3rd, 5th harmonic are suppressed effectively and the ability of detecting the signal of TWACS is improved greatly.
结果表明,该方法可以有效地实现动态调制分量与其他信号的分离,准确提取谐波特征。
The results show that the method can effectively separate the dynamic modulation from other parts of radiated noise, and extract harmonic features.
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