登录
首页 » matlab » PCM

PCM

于 2019-01-30 发布 文件大小:2KB
0 270
下载积分: 1 下载次数: 2

代码说明:

  在实际的调谐解调电路中,采用的是非相干载波解调,本振信号与发射端的载波信号存在频率偏差和相位抖动,因而解调出来的模拟I、Q基带信号是带有载波误差的信号。这样的模拟基带信号即使采用定时准确的时钟进行取样判决,得到的数字信号也不是原来发射端的调制信号,误差的积累将导致抽样判决后的误码率增大,因此数字QPSK解调电路要对载波误差进行补偿,减少非相干载波解调带来的影响。(In the actual tuning and demodulating circuit, non-coherent carrier demodulation is adopted, and the frequency deviation and phase jitter of the local oscillator signal and the carrier signal of the transmitting end are present, and thus the demodulated analog I and Q baseband signals are signals with carrier error.)

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

  • ANFISCLUST_10SLOT
    working of the fifth generation intelligent radio that is Cognitive Radio (CR) system which works on predictive data rate and propose ANFIS based learning scheme to introduce intelligence in it. The testing data set is taken from training set. Validation data set is unseen data. RMSE and prediction accuracy are used as performance index. Two gaussian membership functions are taken for each input. Error goal was set for .001.Training was for 300 epochs. It is seen prediction accuracy was 91 percentages in testing case and 89 in validation. RMSE difference between validation and testing case very small.
    2011-11-29 23:02:21下载
    积分:1
  • 蓝牙打印机_漠北 v1.1 2018-11-26
    安卓手机调用蓝牙实现热敏打印机打印,多品牌打印机可用(Android mobile phone calls Bluetooth to print thermal printers, multi-brand printers are available)
    2020-06-17 11:40:02下载
    积分:1
  • RS码的FPGA实现 RS_Verilog
    RS码的FPGA实现,verilog语言形式,好参考资料(FPGA realization of RS code, verilog language form, a good reference)
    2021-04-17 19:28:52下载
    积分:1
  • OFDMTechnologyandApplication
    OFDM及其基带FFT实现原理以及OFDM的载波和符号同步问题(and OFDM baseband FFT principle and the carrier OFDM symbols and Synchronization)
    2007-07-04 01:00:40下载
    积分:1
  • mimo-with-sumrate-analysis
    MIMO systems with efficient sum rate analysis
    2013-08-27 17:26:54下载
    积分:1
  • iuplempntation
    巴特沃斯滤波器C语言实现,低通滤波器,IIR(Butterworth filter C language implementation, low pass filter, IIR)
    2019-01-06 21:57:44下载
    积分:1
  • AX2227_BTBOXSDK_V110_20141010
    建荣蓝牙芯片的相关资料,常用的工具,文档说明(Info Jianrong Bluetooth chip, commonly used tools, documentation)
    2016-01-25 10:59:31下载
    积分:1
  • AUCFR-thesistemplate
    thesis document used for ph.d degree
    2019-03-24 22:22:49下载
    积分:1
  • booleddeouhclass
    LDPC信道编码理论详细分析及matlab算法实现()
    2017-12-25 07:27:23下载
    积分:1
  • bianyiyuanli
    编译原理的学习资料,我们上课用的,没有源码传,但又想下载东西,只好传了学习资料(Compilation Principle of learning materials, we used in class, there is no source Chuan, but want to download things, but to learn from the information passed)
    2009-01-01 18:45:00下载
    积分:1
  • 696516资源总数
  • 106914会员总数
  • 0今日下载