1) communication during voltage across zero point
过零点通信
1.
So in view of increasing the successful rate for communication effectively, this paper brings forward some ideas such as communication during voltage across zero point, static software relay and communication during suitable time log,and provides the designing scheme of a three-class syste.
本文从有效提高通信成功率出发,提出了过零点通信、静态软件中继技术、通信时段选择等概念,并给出了三级系统的设计方案,可较大幅度地提高系统的性价比。
2) signal zero crossing
信号过零点
3) controlling of zero-crossing breaking over or shutting off
过零点通断控制
1.
According to the size of control cycle time granularities, the chopping control model is divided into three categories: controlling of zero-crossing breaking over or shutting off, phase controlling and PWM chopped wave controlling.
针对交流调压的应用需求,建立了切波调压主电路的拓扑结构模型,根据控制周期时间粒度的大小,将切波调压模式分为过零点通断控制、相位控制和PWM斩波控制三种。
4) zero-crossing point
过零点
1.
This method directly extracts the true back electromotive force(EMF) zero-crossing point by detecting the voltage difference between the floating phase terminal and the midpoint in the DC link.
为了实现无刷直流电机的无位置传感器控制,提出了一种新颖的转子位置信号检测方法,该方法通过比较逆变器直流环中点电压和电机断开相绕组端电压的关系,直接检测到断开相绕组反电动势的过零点,再将该过零点延迟30°电角度即可获得无刷直流电机绕组换相所必须的转子位置信号。
5) zero crossing
过零点
1.
The characteristics of curve shapes have been extracted by using the zero crossing, and the correlation processing from coarse to fine is also carried out.
它是根据地质专家的经验，基于“由粗到细、分级控制”的概念，采用一类小波变换对测井信号进行多分辨率分析，利用其过零点提取曲线形态的特征，进而进行由粗到细的分级比对处理，实验结果良好。
2.
Introduces a method to extract speech feature based on auditory model,the frequency information of the signal is obtained by zero crossing intervals,the intensity information of the signal is obtained by a peak detector and a compressive nonlinearty.
提出了一种基于听觉模型的语音特征提取方法 ,从信号的过零点获得频率信息 ,从振幅峰值和非线性压缩获得强度信息 ,并对这种方法进行了误差分析 ,证明其噪声的鲁棒性。
6) 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 protection has enabled.
该方法首先用线性插值法找出保护启动后最近的差流过零点,然后利用数字信号处理中相关函数的基本原理对采样数据进行分析,计算过零点后一周波中前后半波的自相关系数,根据自相关系数的大小构成区分励磁涌流和故障电流的主判据。
3.
The proposed system can improve which improving the reliability of communication by zero-crossing spread spectrum technology and active watchdog technology.
该系统采用过零点扩频通信方案大大提高了通信成功率,使用主动式看门狗电路提高系统的电磁兼容性。
补充资料：波导通信(见毫米波通信)
波导通信(见毫米波通信)
wave guide communication
bodao tongxin波导通信(wave guide communieation)见毫米波通信。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条