登录
首页 » matlab » 2

2

于 2019-01-15 发布 文件大小:198KB
0 273
下载积分: 1 下载次数: 1

代码说明:

说明:  2. 关于无线信道的多普勒谱,请回答以下问题: (1) 在某些无线信道中,多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因; (2) 无线信道中的多普勒谱有一种经典谱(classic spectrum),请解释产生这种谱形状的机理; (3) 请用Simulink工具编写代码(S-Function方式),产生一单径瑞利信道,其多普勒谱为经典谱,其中移动速率为120km/h。并请描述:自己用计算机产生的经典谱是正确的依据。(2. Regarding the doppler spectrum of the wireless channel, please answer the following questions: (1) in some wireless channels, doppler frequency shift will cause aliasing of the output signals of the wireless channel.Describe the various causes of aliasing; (2) there is a classic spectrum in the doppler spectrum in the wireless channel, please explain the mechanism of producing this spectrum shape; (3) please use Simulink tool to write code (s-function mode) to generate a single-path Rayleigh channel, whose doppler spectrum is the classical spectrum, in which the moving rate is 120km/h.And please describe: your own computer generated classical spectrum is the correct basis.)

文件列表:

2, 0 , 2019-01-15
2\Rayleigh_Fading.slx, 20692 , 2018-12-11
2\srch.m, 376 , 2018-12-10
2\第二题.docx, 196939 , 2018-12-11

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

  • 12
    说明:  本篇讲解遥控信号的ASK、FSK、PSK解调与动画设计的Matlab程序实现。 (This remote control signals on ASK, FSK, PSK demodulation and animation design of the Matlab program.)
    2008-11-23 17:38:09下载
    积分:1
  • F103蓝牙
    对于新手调试入手很快,通过32单片进行通信控制,对于蓝牙运用极大帮助。(For beginners, debugging is very fast, and communication control is carried out through 32 single chip.)
    2020-06-25 04:20:01下载
    积分:1
  • whigehook
    This m file models a DPSK UWB system using a delay in one leg
    2018-09-28 06:15:25下载
    积分:1
  • PCM
    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.)
    2019-01-30 20:16:08下载
    积分:1
  • IR-UWB
    超宽带无线通信仿真平台,基于IEEE标准制定,IR-UWB(Ultra-wideband wireless communications simulation platform, based on IEEE standards, IR-UWB)
    2010-11-10 14:59:29下载
    积分:1
  • OFDM
    说明:  OFDM技术 北京邮电大学内部讲义 内部资料(OFDM 北邮内部讲义)
    2011-03-02 09:45:57下载
    积分:1
  • 串口数据绘曲线
    本程序是将串口实时接收到的数据,然后将数据进行曲线绘制。(The data received by serial port is plotted in real time.)
    2020-06-18 16:00:01下载
    积分:1
  • SUMPLE
    非均匀天线组阵SUMPLE权值信噪比及信号合成性能分析(Non-uniform antenna arraying SUMPLE weights SNR performance analysis and signal synthesis)
    2013-12-20 13:31:43下载
    积分:1
  • ThinkPHP_3.2.1_20140214
    实用性代码,可以在手机等移动设备上很好的使用,可操作性强。(Usefulness of the code can be very good for use on mobile phones and other mobile devices operable.)
    2014-02-26 09:57:45下载
    积分:1
  • 大规模天线检测 传递算法
    说明:  大规模天线检测,运用近似消息传递算法,仿真实验(Massive MIMO detection by implement AMP)
    2019-05-26 13:21:26下载
    积分:1
  • 696516资源总数
  • 106914会员总数
  • 0今日下载