该滤波器通过处理输入离散采样信号获得连续信号并抑制谐波噪声,改进了过零测频方法。
The filter processes input discrete sampling signal to recover continuous signal and suppress harmonic noise, and the zero-crossing frequency measuring method is improved.
提出动态采样区域法进行离散采样、数字滤波,实现焊缝双向跟踪,使系统抗干扰能力强。
In the sampling range digital filter was done. The dual directional seam tracking was achieved by this control system and anti disturbance was strengthened.
该装置的主要特点是不必使用任何数字仪表和电量变送器,各电量的测试是采用离散采样、数据处理的方式来实现。
With sampling the required data point by point without any digital meters and parameter transducers the computer finds various values of current, voltage and power by data processing.
建立了采样数据为直角坐标值、坐标原点可以任意选取、各离散采样点之间也不要求为等角度间隔情况下,圆柱度误差评定的最小二乘数学模型。
This paper models the least square algorithm of the cylindricity error in the rectangular coordinates, whose center may be set on random and all discrete data can be sampled optionally.
采样于线状图形的离散点云数据也是常见的。
The discrete point cloud data sampling from the striation figure is common.
而假如,在采样问题或数字系统中常见这种情况,有些基础方程仅定义于,或仅能应用于离散的时间点上,这就导致了离散时间系统。
If, as in sampling or digital systems, some elemental equations are defined or used only at discrete points in time, a discrete-time system is the result.
对系统模型进行了状态最优估计周围的线性化和采样周期的离散化,给出了干扰方程。
Interferential equations are given after system models are transformed around optimization estimate of state to linearization and dispersed according to sampling period.
离散系统在实际中有着广泛的运用,如计算机控制系统、采样控制系统。
The discrete systems are widely used in the actual environment, such as compute control systems and sample control systems.
针对一种使用了离散非线性采样的视觉注意机制模型,对其应用在小目标预检测上的检测概率进行了研究和分析。
A visual attention mechanism model for discrete nonlinear sampling is studied to analyze its detection probability during pre-detecting small targets.
该文提出了一种基于全相位逆离散余弦变换(APIDCT)内插滤波器的重采样分层编码技术。
This paper proposes a hierarchical coding technique based on the All Phase Inverse Discrete Cosine Transform (APIDCT) interpolation.
该文讨论了采样图象的一般模型,提出了离散图象的采样准则,给出了一种迭代算法。
This paper discusses the general model of Non-uniform sampling image, and presents the sampling principle of discrete image.
当全部采样点都处理过后,可在基本周期的最后一个时间间隔中得到和离散傅立叶变换一样的结果。
When all the sample points are handled after the basic cycle of a time interval finally received and discrete Fourier transform as a result of the introduction of DFT algorithm and the Z-transform.
很明显,当采样间隔减小时,离散变量会逼近连续变量。
A discrete variable will obviously approach a continuous variable as the sampling interval is decreased.
本文详细介绍电磁辐射数字化测量系统,给出了电路原理图,离散化数据高速采样方法及FFT计算方法。
This article presents a digital type electromagnetic radiation measurement system along with its schematic circuit diagram, high speed discrete data sampling method and FFT calculation methods.
但由于图像的离散化采样,在图像中进行尺度测量不可避免地带来了很大的误差。
However, due to discrete sampling, errors ensued when trying to measure line length in images.
采用快速傅立叶变换(FFT)进行电力系统谐波分析时,需要对采样信号截断并离散化,从而导致频谱泄漏和栅栏效应。
Fast Fourier Transform (FFT) is inevitable to cause the spectrum leakage and fence effect because of truncation and discreteness in signal collection.
本文讨论了离散化时需重点考虑的两个问题:采样周期的选取和频率畸变。
Two key questions, selection of sampling period and phenomenon of frequency aberrance, must be considered when the continuous notch filter is discretized.
计算机控制是一种采样离散控制,它是根据采样时刻的输入量来计算控制量。
Computer controlling system is a discrete system and calculated its control valve based on input valve at sample time.
它说的应该是采样时间必须离散。
在获得轮廓的完整信息后,文中提出采用卷积积分的方法,通过线性插值对轮廓进行重采样来计算各离散点曲率。
With the complete contour information, we present a convolution approach, which utilizes an appropriate linear interpolation to resample the contour to calculate pointwise curvature.
从采样,计算延时,控制对象的零阶保持离散化等方面分析了数字化过程对有源电力滤波器性能的影响。
From sampling, calculation time delay, control object zero-order discretization, digitalization process influence to Active Power Filter is analyzed in this paper.
电流数据采样的离散性和采样初始时刻的不确定性是导致采样瞬时值电流差动保护动作值模糊区产生的根本原因。
The decentralization of sampled value and the uncertainty of sampled time bring forth the action fuzzy area of sampled value current differential protection.
该算法对离散的曲线进行光顺、拟合和采样,使用空间曲线微分几何性质计算各采样点的曲率和弗朗·内特标架。
After smoothing, fitting and sampling the discrete space curves, the algorithm calculated Frenet frame and curvature for each sampling point.
该方法以电网电压为同步信号,在电网电压信号的过零点采样直流侧电容电压,并通过周期离散控制可以获得负荷电流有功分量。
The new control way can realize linear control for DC-bus voltage and get the fundamental component of the load current synchronously with a little of calculation.
从工程实际出发,介绍了PLC控制系统中离散量信号的采样滤波方法。
Based on the practical application, the filtering method of the discrete signal for PLC control system are introduced in details in this paper.
鉴于对离散信号的抽取和对连续信号的采样非常相似,本文还把研究范围拓展到了对离散信号的抽取问题。
Since the decimation of discrete time signals is similar to the sampling of continuous signals, it is also studied in the thesis.
首先,把特定的载荷频率范围离散成有限点,并通过对数采样法进行预采样。
Firstly the frequency domain was discretized into limited points. And a logarithmic sampling method was used to select samples.
实验结果表明该方法比传统的离散方向采样法和灰度梯度法得到的指纹图像方向图更加准确。
The experimental result indicates that the orientation field of fingerprint from the article method is more accurate tha…
实验结果表明该方法比传统的离散方向采样法和灰度梯度法得到的指纹图像方向图更加准确。
The experimental result indicates that the orientation field of fingerprint from the article method is more accurate tha…
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