frequency intermediate
英 [ˈfriːkwənsi ˌɪntəˈmiːdiət]
美 [ˈfriːkwənsi ˌɪntərˈmiːdiət]
【电】中频
双语例句
- Introduce the work principle of the cold roller about two frequency quenching device and intermediate frequency system, the method of debugging and valuable experience.
介绍了冷轧辊双频淬火装置中频系统的工作原理、调试方法和宝贵经验。 - The system design method proposed by the paper examines the frequency tracking accuracy of the frequency agile radar synthesis detection unit at intermediate frequency.
本文提出了通过系统设计的方法将频率捷变雷达综合测试仪频率跟踪精度的检定在中频进行。 - The example by quenching to intermediate frequency is analysed, advantage having ascertained mill roller intermediate frequency quenching.
通过对中频淬火的实例分析，确定了轧钢机轧辊中频淬火的优势。 - The parameters of b-GPC are designed according to the opened-loop pole closed-loop pole and closed-loop system frequency characteristics. Applied in the control system of intermediate frequency power supply the method appears satisfactory in stability and transient performance.
通过计算系统开环和闭环极点，分析闭环系统频率特性，设计b-GPC的参数，应用于中频电源控制系统中取得了满意的稳定性和暂态特性。 - Based on the theory analysis of this scheme and an engineering example, formula of frequency planning and design rules of intermediate frequency filter ′ s parameter are proposed.
对该新方案进行了理论分析，进而对这种改进二次变频方案提出了采用的频率配置关系和中频滤波器参数设计准则，并结合一个工程实例完成了相关设计。 - In order to overcome the disadvantages of the existed frequency spectrum analyzer instrument, the idea of software radio was applied, and a scheme of RF virtual frequency analyzer instrument based on digital intermediate frequency was presented, then its feasibility was analyzed.
本文针对现有频谱分析仪的不足，运用软件无线电的思想，提出一种基于中频数字化的虚拟射频频谱分析仪的方案，并对其可行性进行分析。 - From the view of intermediate frequency sampling. This paper introduces theory of intermediate frequency sampling, and composition and implementation block diagram of QPSK demodulation.
从中频采样出发，介绍了中频采样理论以及QPSK解调的组成和实现框图，同时也对2种采样方式进行了性能比较。 - The efficient method, impedance matrix interpolation, is based on the theory of rational function interpolation. The impedance matrix is calculated at relatively large frequency intervals and interpolated to approximate its values at intermediate frequencies.
该方法基于有理函数插值理论，仅对几个插值点频率直接进行计算，便可通过有理插值快速生成其他频率点上的阻抗矩阵。 - Stability Analyzing and Designing of β-GPC Based on Frequency Domain and Its Application in Control System of Intermediate Frequency Power Supply
基于频域的β-GPC稳定性分析与设计及在中频电源控制中的应用 - The key technologies of GSE& vertical transportation, automatic leveling, speed regulation by frequency conversion, intermediate frequency inversion power supply and oil-gas spring are described in detail.
详细论述了地面设备关键技术&垂直运输、自动调平、变频调速、中频逆变电源、油气弹簧等的攻关情况及取得的成果。 - Performance Analysis of Mirror Frequency Rejection and Parameter Design for Intermediate Frequency Sampling System of Pulse Radar
脉冲雷达中频采样系统的镜频抑制性能分析与参数设计 - The paper introduces the technologies of intermediate and high frequency X-ray units, by comparing with the traditional industrial frequency X-ray units, emphasizes the unique advantages of intermediate and high frequency X-ray units.
本文介绍了中高频X线机技术，并通过与传统的工频X线机的比较，重点介绍了中高频线机的独特优势。 - This study analyzed on stride and stride frequency at intermediate running about excellent sprinters in China by the way of the high rapid photography and analysis the film.
本文采用高速摄影和影片解析的方法，对我国优秀男子短跑运动员途中跑步频、步幅诸因素进行分析。 - After structuralization of three node annular element with six degree of freedom, the axisymmetric vibration frequency of anisotropic annular plates with an intermediate concentric circular support is calculated with finite element method.
构造了三结点六个自由度的环形单元，然后采用有限元法计算了中间有环形简支的各向异性环板在各种边界条件下的轴对称横向振动频率。 - In the digital intermediate frequency project, the intermediate frequency signal is converted to digital signal directly into the DSP chip, then it is be processed by DFT.
数字中频方案将中频信号直接通过A/D转换后送入DSP芯片进行DFT变换，最后得到待测信号频谱的采样序列。 - But the latter inserts the watermark to the high frequency or the intermediate frequency strip of the image DCT block, which obtains the transformation territory half frail watermark after the DCT inverse transformation.
而后者是将水印嵌入到图像DCT块的高频或中频部分，再经过DCT反变换得到变换域半脆弱水印。 - The common color television picture intermediate frequency ( PIF) signal with sound intermediate frequency ( SIF) signal are handled in the same passage, and the way of the adoption line alternation scanning to dissolve the big area in picture gleams phenomenon.
普通彩色电视机图像中频信号和伴音中频信号是在同一通道中进行处理的，并采用隔行扫描的方式来消除图像大面积闪烁现象。 - The purpose of this study is to investigate how manipulation of different pre-task planning time can have different effects on the frequency, distribution and accuracy of self-repair for Chinese intermediate and advanced L2 learners.
本文研究的目的是调查任务前准备时间长短对中国中级和高级英语学习者自我纠正的使用频率、分布和准确度的不同影响。 - To solve the problem of frequency offset out of intermediate frequency ( IF) bandwidth for microwave and millimeter wave amplitude and phase receivers, an optimal architecture of low-IF quadrature receiver combining with double-sideband suppressed-carrier ( DSBSC) was presented.
为解决微波毫米波幅相接收机的频率偏移超过中频带宽的问题，提出了一种低中频正交接收机结合双边带抑载的优化结构。 - Different section shapes and technique parameters were experimented by GP100 ( high frequency) and KGPS-M ( intermediate frequency).
由GP100高频感应设备和中频感应设备KGPS-M试验了不同截面形状感应器和不同工艺参数下的熔覆过程； - RF receiver unit is an important part of the mobile terminals in maritime satellite communications, its main function is to transform the higher carrier frequency to a lower intermediate frequency.
射频接收单元是海事卫星通信移动终端的重要组成部分，其主要功能是把较高的载波频率变换到较低的中频。 - It is found that transmission losses in double-corner structure fluctuate greatly with frequency, which depends mostly on whether the intermediate plate acts at resonance and anti-resonance.
计算发现，无论是否附加阻振质量双转角结构的结构声传递损失随频率都有较大的波动，且其极大与极小值对应于有限长中间板的共振及反向共振频率。 - It converts the digital intermediate frequency signal down to zero intermediate frequency signal, and lessens the signal rate to the rate which the DSP processor can handle.
它将数字中频信号下变频至零中频信号，并使信号速率降至通用DSP器件能够处理的速率。 - After getting the echo delay of target, this paper derives the expression of target echo in radio frequency and intermediate frequency, and then analyses the meaning of phases in the expression and the relationship to the motion of target and radars.
在得到目标回波延迟的表达式之后，推出了目标回波的表达形式及其在经过差频后的中频表达形式，然后分析了其中的各个相位项的物理含义及其与目标和平台运动的关系。 - While embedding, the wavelet coefficients ared separated into low frequency coefficients, intermediate frequency coefficients and high frequency coefficients, the watermark information is embedded repeatedly.
在水印嵌入时，将小波系数分成低频系数、中频系数和高频系数，进行水印信息的重复嵌入。 - Its main features are: multiple conversion module cascade, front-end frequency conversion and intermediate frequency transformers electrical isolation.
系统主要特点为：多个变换模块级联，采用前端变频以及中频变压器电气隔离。 - And strictly according to weld craft procedure, adopt high frequency weld, intermediate frequency weld, oxygen separately-ethyne flame weld three welding method to carry on welding PDC bit.
并严格按照焊接工艺程序，分别采用高频焊接、中频焊接、氧&乙炔焰焊接三种焊接方法进行PDC钻头的焊接。