zero cross的例句大全

As for the part of software, Current and voltage zero cross detection circuit, synchronism signal detection circuit, Current and voltage detection circuit and CAN bus interface circuit and so on are designed.

硬件部分主要对电流电压检测电路，同步信号检测电路，电流电压过零检测电路，CAN总线接口电路等进行了设计。

This paper describes a software filtering method for eliminating industrial frequency interference in ordinary industrial process control with the aid of zero cross detection circuits. A detailed account of the filtering theory and its application is also given.

本文介绍了一种在一般工业过程控制中借助于过零检测电路来实现滤除工频干扰的软件滤波方法，阐述了其滤波原理与应用。

Microprocessor controlled Inconstant Cycle Zero cross over Triggering Circuit for Thyristor

微机控制的晶闸管变周期过零触发电路

Phase-locked Zero Cross-over Control of a Temperature Control System

温控装置中的锁相过零控制

After the pretreatment on the speech signal, adopt a algorithm according to short time average amplitude and zero-crossing rate which raised the applicability for different type words.

论文首先对语音信号进行预处理，然后采用一种基于短时平均幅度和短时平均过零率的手段进行断点检测，提高了算法对于不同类型词语的适用性。

Then by considering the factors of time gate, energy, phase and zero-crossing point, etc.

在此基础上，综合考虑时窗、相位、能量和过零点等多种因素，成功地切除了初至波。

A static hysteresis loop test instrumentation is developed, detecting pulse peak by method of cross-zero of pulse peak after differential, acquiring data by microcontroller, displaying hysteresis loop by graphic LCD The test instrumentation has advantages of simple circuit, accurate measurement and visual result.

用脉冲峰值微分过零法检测峰值，单片机采集数据，图形液晶显示磁滞回线，研制静态磁滞回线测试仪，电路简洁，测量准确，结果直观。

The paper introduces a way of using zero-cross Solid State Relay ( SSR) to switch the reactive compen-sation capacitors in the low voltage distribution system.

对低压配电系统中的无功补偿电容器，采用过零固态继电器（SolidStateRelay，SSR）来动态投切。

TSC trigger circuit was designed, including the zero-crossing detection circuit and thyristor trigger circuit. And contactor was combined with the thyristor switch used in TSC.

设计了TSC触发电路，其中包括过零检测电路与晶闸管触发电路，并将接触器与晶闸管组合成复合开关应用在电容器投切中。

Switching of Capacitors with Zero-cross Solid State Relay

采用过零固态继电器投切电容器

MCU get timing reference by zero-crossing detection. It compare the current speed feedback with the object feedback, and control the conduction phase and time using PWM mode to realize the stable speed-regulating of AC PG-motor.

单片机通过过零检测获取计时基准，比较当前转速反馈与目标反馈，采用脉宽调制PWM方式来控制三端双向可控硅开关器件的导通相位角及导通时间，实现交流PG电机的平稳调速。

Analyses and application of the Zero-cross-over Triggering Circuit

过零触发电路的应用与研究

The orthogonal signal radar is studied with new system radar. The cross-relation peak of this kind of signal is zero level. The new system radar can change the phase array radar detection mode.

正交信号雷达是伴随着新体制雷达发展而开始研究的，其各单元发射信号之间互不相关，采用这种体制的雷达将彻底改变传统相控阵体制雷达探测方式。

Elaboration of theoretical knowledge about cross couple with the analysis of the production of transmission zero and its position is made in the thesis.

详细阐述了交叉耦合理论知识，分析了其产生传输零点的原因及相应位置。

The proposed method can achieve fast convergence as well as high accuracy of estimation. It also solves the equivocation and slow convergence problems existing under the extreme condition that the crossing-zero is the initial sample of Gardner algorithm.

该方法具有快速、高精度的特点，尤其是较好地解决了初始点为过零点的极端情况下，Gardner算法收敛方向不确定、收敛时间较长的问题。

Comparison the advantages and disadvantages of the cutting-edge timing, the zero-crossing timing and constant fraction timing discriminator.

在比较了前沿定时、过零定时和恒比定时技术的优缺点后，详细分析了恒比定时技术的性能，提出了设计方案。

Furthermore, to improve the power factor, a novel design can considerably minimum THD of the AC input current by increasing the switch-on time near the zero-crossings of the line voltage.

另外芯片内部还特别加入了一个优化电路，可以增大功率开关管在交流输入电压过零时的导通时间，优化输入交流电流的THD，进一步改善功率因数。

The new methods can rapidly and efficiently obtain the informations of a real sinusoidal signal's phase on time domain or frequency domain by zero-crossings or FFT transforming. The modified methods can extend the threshold SNR of frequency estimation, and it is easily implemented.

新的修改算法利用零交越或FFT变换，能快速有效地在时域或频域上得到实正弦信号的相位信息，改善了频率估计的SNR阈值，且便于工程实现。

the algorithm of measuring zero-crossings can better draw the characteristic parameters ofthe pulse signal.

提出了过零点检测算法，提取了脉搏信号的特征值。

The require of address code in project is that the sequence has acuity auto-correlation and the cross-correlation is near to zero.

由于工程上对地址码的要求是必须具有尖锐的自相关函数，而互相关函数接近于零。