登录
首页 » matlab » QPSK

QPSK

于 2013-12-23 发布 文件大小:90KB
0 253
下载积分: 1 下载次数: 55

代码说明:

  数字调制就是把数字基带信号的频谱搬移到高频处,形成适合在信道中传输的带通信号。基本的数字调制方式有振幅键控(ASK)、频移键控(FSK)、绝对相移键控(PSK)、相对(差分)相移键控(DPSK)。在接收端可以采用想干解调或非相干解调还原数字基带信号。 (Digital modulation is the spectrum shifting to high frequency digital baseband signals, suitable for the formation of bandpass signal transmission in the channel. Digital modulation basic amplitude keying (ASK), frequency shift keying (FSK), the absolute phase shift keying (PSK), relative (differential) phase shift keying (DPSK). At the receiving end can be used to dry the demodulation or non coherent demodulating the digital baseband signal. )

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • yuyinyi
    浊音的对数幅度谱,短时过零率,平均能量,基音周期(Logarithmic amplitude spectrum voiced, short zero-crossing rate, average energy, pitch period)
    2010-05-14 20:12:00下载
    积分:1
  • Cognitive_Radio_Communications_and_Networks__Prin
    Cognitive Radio Communications and Networks Principles and Practice Edited by Alexander M. Wyglinski, Ph.D., Worcester Polytechnic Institute Maziar Nekovee, Ph.D., BT Research and University College London Y. Thomas Hou, Ph.D., Virginia Polytechnic Institute and State University
    2013-09-22 12:09:36下载
    积分:1
  • piubie_v24
    小波包分析提取振动信号中的特征频率,最终的权值矩阵就是滤波器的系数,可直接计算得到多重分形谱。( Wavelet packet analysis to extract vibration signal characteristic frequency, The final weight matrix is ??the filter coefficient, It can be directly calculated multi-fractal spectrum.)
    2016-10-24 10:56:27下载
    积分:1
  • 萤火虫programing
    萤火虫优化算法,可以扩展应用到各种不同的优化问题。(The firefly optimization algorithm can be extended to a variety of optimization problems.)
    2017-08-10 16:37:25下载
    积分:1
  • kaofun
    使用起来非常方便,有借鉴意义哦,相关分析过程的matlab方法。( Very convenient to use, There are reference Oh, Correlation analysis process matlab method.)
    2016-05-10 13:34:20下载
    积分:1
  • axisym
    利用matlab编写的 有限元程序 axisym(Finite Element Analysis)
    2011-06-10 18:18:12下载
    积分:1
  • reconhecimento
    Iris Location - from detection
    2011-11-25 20:34:57下载
    积分:1
  • recnband
    用MATLAB计算多线连接的波导网络系统的频谱结构(Calculated using MATLAB waveguide multi-line network connected to the spectral structure)
    2010-08-09 18:32:11下载
    积分:1
  • Rayleigh
    自己编的MIMO瑞利衰落子程序,四径,车速20,参数可以修改(Rayleigh fading MIMO compiled its own subroutines, four tracks, speed 20, the parameter can be modified)
    2009-12-24 11:17:18下载
    积分:1
  • MATLABIIRfilter
    基于matlab的两种数字滤波器的仿真,IIR滤波器的快速设计方法(matlab filter)
    2011-07-25 16:49:33下载
    积分:1
  • 696516资源总数
  • 106914会员总数
  • 0今日下载