短时过零率,short-time zero-crossing... ... ) zero-crossing time 过零时间 ) Zero crossing discriminator 过零定时 ... www.dictall.com|基于2个网页 2. 时间 ...nce测试指标中,如果一个被测器件焊端的润湿力换向时间(zero-crossing time)或是润湿时间(wetting time,图二,注四…www.smte.net|基于...
1) zero-crossing time 过零时间1. A pulsed eddy current nondestructive inspection system is designed to detect the inner corrosion and the time domain signal feature is obtained,such as the peak of voltage and the zero-crossing time. 介绍了脉冲涡流检测系统的基本原理,设计了一种脉冲涡流检测系统...
1) zero-crossing time discriminating 过零时刻甄别例句>> 2) timing discriminator 定时甄别 1. A fast and compact timing discriminator; 一种简便的快速定时甄别电路 更多例句>> 3) Zero-crossing Algorithm 过零时刻算法4) time discriminator 时间甄别器...
脑电信号零点穿越间期序列的多重分形分析 Multifractal analysis of electroencephalogram zero-crossing time intervals;
Zero-Crossing TimeThe purpose of this study is to illustrate a new method for sensorless vector control of induction motors. This approach uses Zero-Crossing Times (ZCT) signal of stator current to estimate rotor speed. ZCT signal contains useful information which can be used for estimation of ...
1)zero-crossing过零点 1.Iris recognition based on zero-crossing position of wavelet transform and variable-length code matching基于小波过零点位置不等长编码匹配的虹膜识别 2.Firstly, it is to find out the zero-crossing of the differential current using the linear interpolation method after the protect...
The zero-crossing method was used for time pick-off to circumvent the pile-up effect due to slow signals. In order to achieve the best performance, a circuit was designed in such a way that the comparator works in the optimum way. The performance of the discriminator was tested and ...
A new algorithm for time delay estimation (TDE) is proposed, based on zero crossing (ZC). The basic model of zero crossing TDE is discussed, and the mean squared error with additive white Gaussian noise is derived by a theore...
过零率(Zero Crossing Rate)是在每个音框中,音讯通过零点的次数,具有如下特性: 1.一般而言,杂讯的过零大于气音的过零率,而气音的过零率又大于有声音的过零率 2.通常在断点侦测,估测气音的起始位置和结束位置 3.可用来预估信号的基频,但很容易出错,所以必须先进行前处理 以下显示如何计算过零率 范例1输入:...
(1)过零率(Zero-crossing Rate)指在一个短时帧 内,离散采样信号值由正到负和由负到正的次数, 这个量大概能够反映信号在 … www.docin.com|基于10个网页 2. 越零率 3.4.2越零率(Zero-crossing Rate) 263.4.3差分化参数及差量化参数(Differential Coefficient and Delta Coefficient) 283.4.4 频率-... ...