step frequency的例句大全

using encryption technology to improve security, it means to adaptive select the quantization step in wavelet low frequency coefficient.

水印嵌入时利用加密技术来提高水印的安全性，依据小波低频系数自适应的选取量化步长。

step recovery diode frequency multiplier

阶跃恢复二极管倍频器

at the first stage, power amplify pushes the step recovered diode to achieve a frequency quintupling.

第一级采用无源倍频的方式，先将输入信号功率放大以推动阶跃恢复二极管实现五倍频。

as illustrated by the behavior level simulation, the proposed adpll can be locking in about 2 μ s with a large frequency step.

行为级仿真结果说明，所设计全数字锁相环能够在2微秒左右的时间内对大的频率阶跃锁定。

dedicated equipment for high frequency quenching of step shafts in hydraulic valves

液压阀阶梯轴高频淬火专用设备

the electric control unit uses variable frequency step-less speed regulation for easy operation, operation panel is simple and clear.

本机的电气控制采用变频无级调速，操作方便、直观，操作面板简洁、明了。

it indicates that compared to the traditional step up transformer system, the series resonance system has a lot of advantages for the commercial frequency voltage test of high voltage, large size and large length power cables.

提出了该系统对高电压、大截面和大长度电缆的进行工频耐压试验与传统的升压器试验系统相比，具有众多的优点。

A Adjusting Voltage Step Motor Driving Circuit by Dividing Frequency Used in NC Machine Tool

用于数控机床的分频段调压步进电机驱动电路

Variable frequency charging technology, quick charging speed , step-less voltage regulation.

变频充电技术, 充电速度快, 无级调压.

its parameters can be regulated by keyboard in order to control amplification and cutoff frequency step.

通过键盘设置参数,实现放大器放大增益步进调节、滤波器带通频率步进调节功能.

For the requirements of the signal-to-noise ratio of lower in part of telephone channel the algorithm to convergence in the time domain and frequency domain step by step.

针对部分线路上语音信噪比较低的实际，引入谱熵进行分级检测，将算法在时域和频域逐级进行收敛。

This paper summarizes the characteristics of the wavelength phase-shifting interferometry and divides the step measurement algorithms of wavelength phase-shifting interferometry into temporal domain and frequency domain algorithms.

概括了波长移相干涉技术的特点，将基于波长移相干涉技术的台阶测量算法分成两类：时域算法和频域算法。

This paper mainly introduces the computation of time interval of pulse delay in the design of pulse positioning of rise and fall frequency of step motor with microcomputer control.

主要介绍微机控制步进电机升降频脉冲定位设计中，脉冲间隔时间的计算方法。

The indexes for approximation evaluation include the step response, the rising time, Bode plot, the band width, and the H-inf norm of the error over the whole frequency range.

比较指标有单位阶跃响应的上升时间、频域波特图的频率带宽、以及传递函数误差的H-inf范数。

The paper mainly put forward a new control method of stepping motor which character-, ized by equal-stepped fine division, and then design a constant frequency PWM driver circuit.

提出一种等步距角的细分控制方法，并据此设计了恒频脉宽调制细分电路。

Finally, the impedance characteristic of piezoelectricity transducer and the principle of frequency tracking were studied. Software phase-locked loop was used to track self-adapting frequency, and arithmetic of frequency tracking based on change step and dichotomy was presented.

最后，对压电换能器的电抗特性和频率跟踪原理进行研究，采用软件锁相环进行了频率自适应跟踪设计，提出变步进与二分法相结合的频率跟踪算法。