此系统应用小波降噪的方法提高测试信号的质量,然后提取信号特征点,得到溢流阀动态特性的各项参数。
Applying wavelet denoise to improve the test signal, the dynamic characteristic parameters of a overflow valve were obtained by selecting characteristic point of the signal.
最后基于经典控制理论的根轨迹法整定直流小信号调制器参数。
Finally, parameters of the HVDC small signal modulator are tuned based on root locus rules of the classical control theory.
而且,该方法易于用一般的机电暂态仿真软件实现,并可用于FACTS小信号调制器参数整定。
Also it can be employed to tune parameters of small signal modulators of FACTS. Furthermore, this method can be easily implemented by electromechanical transient analysis programs.
首先利用厂家提供的PHEMT直流i -V特性曲线及小信号s参数得出了其非线性等效电路模型。
Firstly, with the I-V curve and s parameters of the PHEMT, it's nonlinear equivalent circuit is fitted.
混沌系统的参数敏感性和初值敏感性可以用于小信号检测,抑制噪声是其关键。
The parameters sensitivity and initial conditions sensitivity of chaotic systems can be used to detect weak signals, and the noise reduction plays a key role in its realization.
以此特征频带的小波变换系数作为声-超声信号特征参数,可分辨出胶接区域的缺陷信号。
The wavelet coefficient of the feature band was regarded as the feature parameter of the Acousto Ultrasonic signal and it can distinguish defects from the adhesively bonded joints.
微波功率放大器设计需要大信号s参数,但大多数情况下,设计者只有小信号s参数和静态I - V曲线。
The design of microwave power amplifier needs large-signal s parameters, but under most circumstances, the designer only has small-signal s parameters and the static I-V curve.
分别推导了分形信号和白噪声的小波系数统计量的公式,在此基础上用最大似然法进行参数估计。
We have derived the formulas for wavelet coefficients of the fractal signal and white noise separately on the basis of which the maximum likelihood method is used to estimate the fractal parameter.
该非线性PID算法构造了增益参数关于误差信号的非线性拟合函数,算法能够同时保证响应速度快、超调量小以及自适应能力强的系统特性。
The nonlinear function is given by the nonlinear PID algorithm, and the algorithm can guarantee the system have the property of the fast response, a little over shot and strong self adaptive.
利用小波良好的去噪性能,选择了合适的参数对越野吉普车BJ2020S实验测量信号进行小波去噪。
It is an effective method to reduce the noise in signal by wavelet, and proper parameters are selected to reduce the noise in test signal of BJ2020S road-off jeep in this paper.
此法也可用于猜测一切有源网络的小信号s参数和一切无源网络的S参数。
Besides, it can be used both to measure the small signal S-parameters of active networks and the S-parameters of passive networks with high accuracy.
基于随机分形理论,采用分数布朗运动模型,应用R/S分析技术和基于小波变换的谱参数估计方法计算地震道信号的赫斯特指数。
The thesis based on random fractal theory, utilizing fractional Brownian motion model, using R/S analysis technique and wavelet transform method to estimate Hurst exponent which dep.
论文从二极管传统的建模方法入手,建立了它的小信号模型,用优化的方法提取了小信号模型参数。
We started with the traditional modeling methods for Schottky diode and the small-signal model had been extracted by using optimization method.
之后进一步针对目标与信号在尺度上的差别对目标信号进行了恢复,在恢复的基础上利用互小波变换对目标的参数进行了估计。
Because the difference in scale between the signal and noise, the signal is restored, then with the usage of cross wavelet transform the parameters of target are estimated.
在电路平均法基础上对占空比限制加以改进,并考虑寄生参数的影响,推导出状态方程,建立其小信号模型。
On the base of classic state-space averaging, this paper modifies and considers the parasitic effects of circuit elements which lead to equation of the state, so the small-signal model is established.
提出了一种基于线路分布参数的小电流接地系统的高精度故障模型,用于分析单相接地故障产生的暂态信号特征及进一步完善基于暂态信息的小电流接地故障选线判据。
Small Current Grounding Power System is widely used in power distribution network with middle and low voltage in china, and the single phase to ground fault takes place most frequently in such system.
提出了一种基于线路分布参数的小电流接地系统的高精度故障模型,用于分析单相接地故障产生的暂态信号特征及进一步完善基于暂态信息的小电流接地故障选线判据。
Small Current Grounding Power System is widely used in power distribution network with middle and low voltage in china, and the single phase to ground fault takes place most frequently in such system.
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