frequency的例句大全

The numerical simulation indicates that, larger biasing current and smaller detuning expand the dynamic range of conversion efficiency and extinction ratio, but worsen the frequency chirp.

数值模拟表明：增大偏置电流、减小失谐量有利于扩展转换效率及消光比的动态范围，同时恶化了频率啁啾的动态范围；

The cut-off frequency of this filter can be controlled by dc biasing current, meanwhile, the low sensitivity characteristics of passive electrical network is also reserved.

截止频率可通过电流进行控制，同时保持了无源网络低灵敏度的特点。

A new frequency domain identification algorithm for SISO system with time delay is proposed based on biased relay feedback.

提出一种新的基于偏置继电反馈的频域辨识算法，能够对包括迟延在内的SISO系统的传递函数参数进行在线辨识。

The method adopts the frequency domain masking technique to mask the peak fields of the radar echos' Fourier transform data, and uses the fractional correlation comprising of Fractional Fourier Transform ( FrFT) and inverse Fourier transform to detect the ARM only in one-dimensional searching.

该方法利用雷达回波的频域（Fourier变换）数据，根据尖锋作遮隔处理后，直接运用基于分数阶Fourier变换（FrFT）和Fourier逆变换的分数阶相关方法，通过一维搜索来检测ARM。

Accordingly, a FIR filter based on frequency response masking technique is introduced into the design of digital down-converters, its efficient implementation architecture is given and the complexity of the algorithm are studied thoroughly.

该文将基于频率响应屏蔽（FRM）方法的FIR滤波器引入到数字下变频器设计中，并详细地研究了此类数字下变频器的高效实现结构和算法复杂度。

It shows that the frequency selectivity of the forward masking procedure is better than that of the simultaneous masking procedure.

略论螯合滴定法中的掩蔽方法说明前掩蔽法cAP-TC的频率选择性比同时掩蔽法好，前者更能体现耳蜗频率选择性的实际情况。

The results showed that the equivalent stiffness curve of structure unit was an "elongated S" in frequency domain, while the damping property presented "bell-shaped curve".

仿真和实验结果表明，模式结构的等效刚度随振动频率变化曲线呈拉长的S形，而阻尼特性曲线呈钟形。

Sonar survey has a very high resolution and signal emission frequency, so it can be used to obtain high-quality shallow profile and the textural and structural details of sedimentary strata and indicators of deltaic deposits such as oblique bedding.

声波探测具有很高的分辨率和信号发射频度，可以获得高品质浅地层剖面，显示出沉积地层的结构与构造细节、斜层理等三角洲沉积标志特征。

Failure Mechanism of Motor Bearings in the Frequency Conversion Driving System

变频电机轴承失效机理分析

Fixed frequency radar responder beacon

固定频率雷达应答标

According to the procedure a plasmid DNA& pBR 322 and pAt 153 was obtained. The frequency of transformation of genetic markers of resistant antibiotics has been determined using E. Coli C_ ( 600) and HB 101 as the recipient cell respectively.

本文叙述了一种简便有效的纯化质粒DNA的方法，制得的质粒DNA&pBR322和pAt153分别以C600和HB101作为受体细胞进行转化，测定了对抗生素有抗性的遗传标记的转化频率。

This article introduces the core chip ( baseband chip and radio frequency chip), uses "the Chinese clip group" SCDMA colored screen handset design and application.

介绍了核心芯片（基带芯片与射频芯片）采用中国芯的SCDMA彩屏手机的设计与应用。

The excitation method which residual signal produced from baseband extraction and high frequency, reproduction is introduced.

对基带提取&高频再生残余信号的激励方式亦作了相应的介绍。

Discussion on Saving Energy Measures for Mains Frequency Coreless Induction Furnace used for Zinc Alloy Production

锌合金熔炼用工频无心感应炉节能措施探讨

This produces a waveform of one polarity operating at a frequency twice that of the mains supply.

经过整流后得到的是一个频率为交流电源两倍的单极波形。

The article introduces the composition lining of the mains frequency coreless induction furnace with short coils.

本文介绍短线圈工频无心感应保温炉采用的复合炉衬。

Numerical Simulation of Electromagnetic and Thermal Fields in the Mains Frequency Induction Furnace for Melting Zinc

熔锌工频有芯感应炉电磁场和温度场的数值仿真研究

AC Voltage Regulation Device Using Thyristors for Cored Mains Frequency Induction Furnace

工频有芯感应电炉可控硅交流调压装置

The Application of Cored Mains Frequency Induction Furnace to Production of Zinc Alloy

锌合金生产中工频无芯感应电炉的应用

Design of High Voltage and High Frequency Pulse Sharpening Circuit Based on Magnetic Switch

基于磁开关的高压高频脉冲陡化电路的设计