中频带的英文

• medium frequency band
• mid-frequency band

• "中频"英文翻译    intermediate frequency; IF; ...
• "带"英文翻译    belt; girdle; ribbon; band; ...
• "中频，中频带" 英文翻译 :    midband
• "中频带宽" 英文翻译 :    if bandwidth
• "中频带频率" 英文翻译 :    mid-hand frequency
• "中频频带" 英文翻译 :    medium-frequency band
• "重中频带" 英文翻译 :    midand
• "抗中频带调制效应" 英文翻译 :    antimidband modulation effect
• "被动式中频宽频带声纳" 英文翻译 :    broad band passive sonar
• "中频" 英文翻译 :    intermediate frequency; if; medium frequency; midfrequency; resting frequency (频率调制时)◇中频道 mid band; 中频干扰 [电子学] intermediate-frequency jamming; 中频炉 intermediate frequency furnace; 中频信号 [电子学] intermediate-frequency signal; 中频增益 intermediate-frequency gain; midfrequency gain; 中频振荡器 [讯] intermediate-frequency oscillator
• "s频带" 英文翻译 :    s band
• "频带" 英文翻译 :    frequency band; frequency range; wave band; band◇频带分割 band sharing; 频带分离器 band separator; 频带共用 band sharing; 频带宽度 frequency band width; bandwidth; 频带指示器 band indicator
• "中频中频中频" 英文翻译 :    medium frequency
• "【电学】中频。" 英文翻译 :    medium frequency
• "零中频" 英文翻译 :    zero intermediate frequency
• "中频，载频" 英文翻译 :    resting frequency
• "中频，中音" 英文翻译 :    mf middle frequency
• "中频道" 英文翻译 :    mid band
• "中频的" 英文翻译 :    if intermidiate frequency
• "中频段" 英文翻译 :    medium frequency band; mf=mid frequency; mf=midfrequency; midrange
• "中频管" 英文翻译 :    medium-frequency tube
• "中频级" 英文翻译 :    intermediate frequency stage; intermediate-frequency (if) stage; intermediate-frequency stage
• "中频炉" 英文翻译 :    intermediate frequency furnace
• "中频率" 英文翻译 :    mf
• "中频条" 英文翻译 :    intermediate-frequency strip se ratio

• Frequency band energy leakage and countermeasures in wavelet analysis
  小波分析中频带能量泄漏及对策
• First , the theory and structure of swr is expounded , then software and hardware models of the base station , which use the sdr structure of wideband and band - pass sampling in if ( intermediate frequency ) , are put forward
  首先介绍了软件无线电的概念、特点、基础理论和基本构成，推导了软件无线电的数学模型，然后在此基础上详细讨论了基于宽带中频带通采样软件无线电结构的移动通信基站的硬件和软件的设计方案。
• First , the structure of sdr and the physical - channel of td - scdma are expounded , then software and hardware models of the terminal receiver , which use the sdr structure of wideband and bandpass sampling in if ( intermediate frequency ) , are put forward
  首先对软件无线电的组成结构和td - scdma物理信道进行了阐述，在此基础上提出了基于宽带中频带通采样软件无线电结构的td - scdma终端接收机的软硬件模块设计方案。
• The author designed a pci card , which introduced the broadband intermediate - frequency band - pass sampling software radio structure based on pci bus . a special pci controlling chip ? y7c09449pv produced by cypress corporation was used here for pci interface design . in order to control all the required logical parts on the pci card , the author used one cpld to design a global logic controller by verilog hdl
  作者设计了一块pci插卡，采用了基于pci总线的宽带中频带通采样软件无线电结构，选用cypress公司的cy7c09449pv专用pci控制芯片实现pci接口设计，使用复杂可编程逻辑器件借助veriloghdl硬件描述语言完成插卡上的全局控制器的设计。
• Firstly , we introduce the fundament theory of digital quadrature modulation and digital filter , we also introduce the concept and the key technology of software , including smart antenna , ad , sampling , digital down sample theory . it " s very important to understand this theory . subsequently , we introduce two common designs and its supported hardware , and we also present a new design based on swr
  文中首先介绍了数字信号处理技术，包括数字正交解调技术、数字滤波器的基本理论，接着介绍了软件无线电的基本概念和关键技术，包括智能天线的概念、软件无线电中的ad技术、中频带通采样技术、数字下变频技术，深入理解这些技术是实现成功方案的基础。
• Firstly , the paper presents the basic principles of software radio , introduces the origin , the concept , the features , the research status quo domestically and abroad and the developing direction of the software radio , analyzes the different basic structures of software radio system in terms of different sampling methods , including software radio structure with broadband and low - pass sampling , software radio structure with direct band - pass sampling and the software structure with broadband mid - frequency sampling , and analyzes some key technologies in software radio
  首先，论述了软件无线电的基本原理。介绍了软件无线电的起源、概念、特点、国内外研究现状和发展方向，分析了根据不同的采样方式确定的不同的软件无线电系统的基本结构，包括射频全宽开低通采样软件无线电结构、射频直接带通采样软件无线电结构和宽带中频带通采样软件无线电结构，以及软件无线电中的关键技术。
• This dissertation adopts a universal digital ds / dmpsk modulation and demodulation scheme which is based on fpga . this scheme adopts quadrature balanceable modulation , intermediate frequency sampling , digital matched filtering , delay differential demodulation techniques and so on . it directly processes the digital signals on intermediate frequency without down - conversion , and doesn ’ t need pseudo random codes synchronization and carrier wave extraction circuits
  本文采用了一种基于fpga的通用数字调制解调方案,该方案在调制端采用了正交平衡调制技术,在解调端采用了中频带通采样、数字匹配滤波、延时差分解调等技术,直接在中频上进行数字信号处理,不需要进行下变频,也不需要增加额外的伪随机码同步捕获和载波提取电路。
• Satellite earth stations and systems - harmonized en for mobile earth stations of geostationary mobile satellite systems , including handheld earth stations , for satellite personal communications networks in the 1 , 5 1 , 6 ghz bands under the mobile satellite service covering essential requirements under article 3 . 2 of the r tte directive
  卫星地面站和系统.包括手持式地面站的同步移动卫星系统的移动地面站及包括r tte指令中3 . 2条款基本要求的移动卫星业务中频带为1 . 5 1 . 6ghz的卫星个人通信网络用协调的en标准
• On the basis of this theory , the applications of the sdr structure of wideband and bandpass sampling in if ( intermediate frequency ) in flight test were offered : increase the sampling in if ( intermediate frequency ) in flight test were offered : increase the capacity of the transmitter and the terminal receiver channels without changing the apparatus of original system and on the conditions of obeying the standard remote sensing
  首先对软件无线电的组成结构和飞行测试中实际使用的信道进行了阐述，在此基础上提出了基于宽带中频带通采样软件无线电结构在飞行遥测测试中的应用，在不改变原系统设备的情况下，在遵守遥测标准的前提下，提出增加机载发射机和接收机信道容量的设计方案。
• Combining the software radio system with the idea of broadband mid - frequency sampling , the paper puts forward the feasible structure plot of software radio receiver system based on direct mid - frequency sampling nowadays . then the working principle of each module is analyzed , including radio frequency processing , middle frequency processing and base - band processing
  结合软件无线电的体系结构和宽带中频带通采样的思想，提出了现阶段可行的直接中频采样软件无线电接收机的系统结构框图，并且分析了各个模块的工作原理，包括射频处理、中频处理以及基带处理等。