英语释义

1. a relatively low frequency to which a signal is converted before demodulation in heterodyne reception —abbreviation i.f.

片语

intermediate-frequency band中频带

mean frequency平均频率；[物] 中频

intermediate-frequency cancellation中频对消

intermediate-frequency signal翻译

intermediate-frequency oscillator中频振蕩器

intermediate gene frequency optima中间基因频率优化

intermediate-frequency jamming中频干扰

Intermediate satellite frequency介面卫星频率

intermediate critical frequency中间临界频率

intermediate-frequency stabilization中频稳定

英汉例句

• a feasible digital intermediate frequency receiver based on software radio technology is presented in this paper.

  基于软件无线电思想介绍了一种可行的中频数字化接收机系统设计方案。

• and the application in intermediate frequency digital receiver proves this software system′s efficiency and dependability.

  在中频数字接收系统中的应用验证了此软件系统的效率和可靠性。

• the theory of the device with direct intermediate frequency sampling and digital down convert for oth radar is described by this paper, and the implementation method is also introduced .

  阐述了超视距雷达用中频采样和数字下变频的原理，给出了具体的工程实现方法。

• digital intermediate frequency (if) demodulation based on fpga show good coordination to deal with the contradiction between the capacity and flexibility.

  采用fpga实现数字中频，能够很好的协调处理能力和灵活性之间的矛盾。

• objective to observe the clinical effect of acupunture and computer intermediate frequency for fibromyalgia syndrome (fs).

  目的观察针刺加电脑中频治疗纤维肌痛综合征的临床疗效。

• an adaptive stochastic resonance algorithm is proposed and used in detecting the fault signal of intermediate frequency power source. the result is preferable.

  提出了一种随机共振自适应算法，并运用于中频电源的故障信号检测，取得了较好结果。

• 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 three dimensional non linear finite element analysis of the transient temperature field during intermediate frequency quenching of diesel crankshaft was simulated by using of ansys.

  利用ansys有限元分析软件，采用三维非线性有限元方法对柴油机曲轴中频淬火瞬态温度场进行了模拟计算；

• icnia general signal processor mostly is the same with general digital process of intermediate frequency and baseband signal in icnia system, and has interface function with major control computer.

  icnia通用信号处理板主要目的是构造icnia系统中中频及基带信号的通用化数字处理平台，并完成与主控计算机之间的通信接口功能。

• the de-hopping and digital intermediate frequency receiver can either do the real-time de-hopping processing or be used as a software radio receiver.

  需要实现的跳频解跳与数字中频接收机既能对跳频信号进行实时解跳，又能做为一台软件无线电接收机使用。

• the system adopts superheterodyne architecture. it consists of intermediate frequency (if) band and radio frequency (rf) band hardware design.

  该收发信机采用超外差结构，主要包括中频部分的硬件设计以及射频部分的硬件设计。

• application : this series can be widely used in the communication systems of intermediate frequency for improving selectivity and anti-jamming capacity of signals.

  用途：可广泛应用于中频通讯系统中，提高信号的选择性和抗干扰能力。

• the main contents of this project includes the following aspects:1. design a high performance and low price computerized intermediate frequency therapy apparatus;

  设计一种功能强、成本低、具有较强市场竞争力的双通道电脑中频治疗仪，先行投入市场；

• the block diagram of intermediate frequency feed thru nuller is given.

  给出了设计中频对消器的原理框图。

• the pure quartz lump becomes quartz tube via untouched technology of intermediate frequency induction heating.

  采用中频感应加热无接触技术，将石英凈坨拉制成为石英管。

• computerized intermediate frequency therapy apparatus is one of the most useful electrotherapy units in clinical.

  电脑中频治疗仪是一种在临床被广泛应用的电子康复治疗设备。

• the key component of the system is a digital intermediate frequency receiver employing dsp and fpga to obtain amplitude and phase data in real-time, which improves measurement speed and flexibility.

  该系统的关键部件是一个数字中频接收机，利用dsp和fpga实时获取幅度和相位数据，从而提高了测量速度和灵活性。

• having the property of good image rejection in broadband and low intermediate frequency (if) cases, the image-rejected mixers (irm) have been widely used in various mmw receivers.

  而镜频抑制混频器能够在宽带、低中频的情况下实现良好的镜频抑制。

• the common breakdown and its removal of the rectifier circuits and inverse transforming circuits in intermediate frequency induction electric furnace for thyristor are introduced.

  介绍了在可控硅中频感应电炉中整流电路和逆变电路的常见故障及其排除方法。

• the paper introduces some experience in anti-interference for design and parallel operation of small intermediate frequency three-phase synchronous generator with active load.

  本文介绍了带有源负载时，小型三相同步中频发电机的设计和并联运行时抗干扰方面的一些经验。

• finally the fruit of research for my master degree presents in the way of actual de-hopping and digital intermediate frequency receivers that have passed the examination.

  最终以通过检测的跳频解跳与数字中频接收机的实物作为硕士期间的研究成果呈现。

• aiming at request of private mobile radio, technology requirement of base station receiver based on tetra protocol is analyzed, and two intermediate frequency superheterodyne structure is selected.

  针对专用移动移动通信对接收机的要求，分析了tetra协议中基站接收机技术指标和选择双中频超外差接收机方案。

• gps digitized intermediate frequency signal sampler was used to validate the algorithm of acquisition and tracking of software receiver.

  采用gps中频信号采样器采集实际gps数据，对搜索和跟蹤算法进行了验证。

• the utility model relates to a 12mc, namely, a three-phase bridge rectifier in intermediate frequency power supply, belonging to a technological field of intermediate frequency power supply.

  本实用新型涉及的是一种12mc-中频电源中的三相桥式整流器，属于中频电源技术领域。

• the non-ideal characteristic of intermediate frequency signal is unfavorable for band-pass sampling and affects the performance of quadrature transform.

  信号中频的非理想给带通采样有着不利影响，并影响正交变换的性能。