正交调制的英文

• q uadrature modulalion
• quadrature component modulation
• quadrature modulation i/q

• "正交"英文翻译    orthogonal; perpendicular; n ...
• "调制"英文翻译    mingle; toss; lard; modulate ...
• "正交调制器" 英文翻译 :    quadrature modulator
• "平衡正交调制" 英文翻译 :    balanced quadrature modulation
• "相位正交调制" 英文翻译 :    phase quadrature modulation
• "正交调制串音" 英文翻译 :    quadrature cross talk
• "正交调制载波" 英文翻译 :    quadrature-modulated carrier
• "正交调制彩色信号" 英文翻译 :    quadrature modulated chrominance signal; quadrature modulated chrominancesignal
• "正交振幅调制，正交调幅" 英文翻译 :    quadrature amplitude modulation
• "彩色副载频正交调制" 英文翻译 :    color multiplexing
• "正交调幅，90度相移幅度调制" 英文翻译 :    qam quadrature amplitude modulation
• "正交调幅" 英文翻译 :    qam quadrative amplitude modulation; qam quadrature amplitude modulation; quadrature amplitude modulation （qam）
• "正交调幅器" 英文翻译 :    quadrature modulator
• "正交调节" 英文翻译 :    quadrature-adjust
• "正交调频" 英文翻译 :    quadrature frequency ho ing; quadrature frequency hopping
• "相互调制；交调" 英文翻译 :    intermodulation
• "彩色信号多路传输系统, 彩色副载频正交调制" 英文翻译 :    colour multiplexing
• "多电平正交调幅" 英文翻译 :    multi-level quadrature amplitude modulation (qam); multi-level quadrature amplitude modulation （qam）
• "多进制正交调幅" 英文翻译 :    mqam
• "兼容正交调幅制" 英文翻译 :    compatible quadrature amplitude modulation
• "频率分集正交调幅" 英文翻译 :    frequency diversity qam (fdqam)
• "正交调幅色度信号" 英文翻译 :    qam chrominance signal
• "交调" 英文翻译 :    intermodulation (im); cross modulation
• "正交幅度调制" 英文翻译 :    qam; quadrature amplitude modulation
• "正交副度调制" 英文翻译 :    qam quadrature amplitude modulation

• Balanced quadrature modulation
  平衡正交调制
• An application of quadrature digital modulator on simulation the clutter of targets
  数字正交调制器在目标杂波仿真中应用
• Chapter 3 introduce the circuit design of wide band digital t / r module transmission channel . chapter 4 introduce the fpga software design of wide band digital t / r module transmission channel
  第三章介绍了宽带数字t / r组件发射通道试验电路的硬件设计,包括光纤接口电路、 ddws电路、正交调制电路的设计。
• It produces the i and q signals , limits their pass bands , uses them to modulate the subcarrier in a quadrature and adds the moduled subcarrier to the luminance y , blanking and synchronizing signal waveform
  它首先分离出i信号和q信号，指定了它们的传输频带，并用它们对副载波进行正交调制，然后将调制过的副载波信号叠加到亮度信号y和同步信号波形上。
• In chapter 2 , the principle of gmsk modulation is given in detail based on the discussion of various digital modulation techniques used in mobile communications . chapter 3 deals with the dsp assembly language implementation of 0 . 3 gmsk for gsm mobile phone test set
  第二章从数字移动通信系统中常用的调制解调方式出发，比较了实现gmsk调制的几种方法，提出了波形存储正交调制实现gmsk调制的基本原理。
• First , how to conduct sample and quantification of continuous time signal which is prior condition of sdr is explored in detail , and the comparison and analysis of some sample modes are given in which band pass signal sampling theorem is most important . second , multi - sample rate signal processing which is an important basis of sdr is studied . emphasis are put on decimation and interpolation those are the most fundamental process and the realization of decimation and interpolation filter
  在基于中频采样的软件无线电结构框架下，首先详细探讨了软件无线电的前提条件，即如何对连续时间信号进行采样量化，比较分析了几种采样的方式，其中最为重要的是带通信号采样定理；然后探讨了软件无线电的一个重要基础，即多采样率信号处理，重点讨论其最基本的两个过程抽取和内插以及抽取器和内插器的实现；接着介绍了结构简单、适用于一级抽取的cic滤波器和适用于做2倍抽取的半带滤波器；再次论文在总结了传统的调制解调基础上，结合软件无线电器件的特点，系统的探讨并实现了基于正交思想的am 、 fm 、 ask 、 fsk 、 bpsk 、 qpsk的正交调制解调算法。
• In chapter 2 , first give the theory of phased array radar . second introduce the analog t / r module and digital t / r module . third discusses some key technology of wide band digital t / r module , including ddws technology and quadrature modulate technology . at last present a scheme of l bandwide banddigital t / r module
  第二章首先介绍了相控阵雷达系统的组成和工作过程,其次介绍了模拟t / r组件和数字t / r组件的组成,然后介绍了宽带数字t / r组件的关键技术,包括:直接数字波形产生技术和正交调制技术,最后提出了一种l波段宽带数字t / r组件的框图。
• After comparing several analog and digital generation methods of lfm signal , this paper confirms the system scheme as direct digital synthesis plus quadrature modulation . combined with agilent arbitrary waveform generator and phasor signal generator , a generation system is established and a ultra - wideband signal , whose bandwidth is 1ghz and carrier frequency is 4ghz , is generated
  通过对几种模拟与数字线性调频信号的产生方法的比较,本文采用了以直接数字波形合成( ddws )加正交调制的系统方案,并结合实际的仪器设备,产生了带宽为1ghz ,载频4ghz的超宽带线性调频信号。
• In the thesis , i mainly discuss the digital if process theory of the sr . chapter 2 demonstrates the sampling and quantization theory of wideband if signal , and multiple rate signal processing theory - - - - including interpolation , decimation and oversampling . chapter 3 introduces the digital up ( down ) conversion between baseband - modulated and bandpass modulated signal through orthogonal modulating ( demodulating ) , at last , after discussing fir filter ' s properties and design methods , i give a design example
  主要研究了基于软件无线电的数字中频处理技术理论:第二章介绍了中频信号的采样、量化理论；介绍多采样率信号处理中的抽取与内插相关理论；第三章介绍了基带调制信号与带通信号通过正交调制解调的数字上下变频技术；最后介绍fir滤波器的特点与设计方法，并列举一个实例说明。
• The carrier wave is modulated directly by the baseband signal at several frequency point in l band and s band . firstly , this paper clarifies the theory of i / q modulation , elaborates evm and acpl , and analyzes the effect of amplitude and phase unbalance and dc offset on evm . secondly we review the basic principle of phase locked loop and it ’ s composing parts , including the basic conception and design method of pll frequency synthesizer , especially introduce the charge pump pll frequency synthesizer in detail
  首先,在阐述i / q正交调制基本原理的基础上,通过对误差矢量和邻近信道功率泄漏的详细分析,定性、定量地讨论了各种非理想电路因素(如相位不平衡、幅度不平衡、直流偏差等)对调制器性能的影响;其次,介绍了锁相环的工作原理和基本组成部分,包括锁相环的设计和环路滤波器的设计,特别详述了电荷泵锁相频率源;第三,介绍了采用直接调制技术模拟卫星信号的射频前端的设计;最后,对整个直接射频调制系统进行测试,结果基本上达到了课题要求。