登录
首页 » matlab » 2

2

于 2021-01-23 发布
0 417
下载积分: 1 下载次数: 8

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

  • AMC_Mobile_result
    6e协议中移动WiMAX的AMC方案,仿真UGS业务在不同到达率下的吞吐率,丢包率、仿真时间内总能耗、千比特能量消耗(6e protocol in mobile WiMAX AMC scheme)
    2013-03-14 09:24:52下载
    积分:1
  • opnet
    里面是一些自己总结的opnet的建模步骤,还有就是opnet里面常用英文单词的汉语解释。(Which are summarized opnet own modeling steps, there is the opnet which used English words explained in Chinese.)
    2010-06-16 09:02:12下载
    积分:1
  • Cross-layer-
    一种基于遗传算法的OFDMA系统的跨层资源分配(Cross-layer resource a genetic algorithm-based allocation of OFDMA system)
    2013-12-19 13:24:17下载
    积分:1
  • 汽车行业CAN通讯SAEJ1939标准英文版
    说明:  汽车行业CAN通讯SAEJ1939标准英文版(Auto Industry CAN Communication SAEJ1939 Standard English Edition)
    2020-06-18 00:20:01下载
    积分:1
  • 程序
    说明:  当今世界电子对抗日益激烈,对于雷达低截获和抗干扰能力的研究越来越受到关注。OFDM (Orthorgonal Frequency Division Multiplexing,正交频分复用)雷达具有大时宽带宽积、波形设计方法灵活、频谱利用率较高以及低截获性能好的特性,因此逐渐成为雷达领域的重点研究方向。除此之外,OFDM信号时域和频域波形都比较复杂,当雷达信号采用OFDM技术时,敌方很难精确估计发射信号波形和瞬时频率,使得截获机不容易分析出检测到的雷达信号。当面对敌方的欺骗式干扰时,对于同样具有大时宽带宽积的线性调频信号,OFDM信号具有更好的抗欺骗式干扰的性能,因此OFDM技术在雷达上的运用愈来愈得到关注。(As electronic warfare becomes increasingly fierce, low intercept probability radar has become an important research filed in electronic countermeasures. OFDM (Orthorgonal Frequency Division Multiplexing) radars have gradually emerged due to their high spectrum efficiency, large time-bandwidth product, flexible waveform design methods, and low intercept probability.In addition, because of the complex time-frequency characteristics of the transmitted signal in OFDM radar, the enemy is difficult to estimate the transmitted signal waveform and instantaneous frequency.When faced with enemy deception interference, OFDM signals have better anti-spoofing performance for LFM signals that also have a large time-bandwidth bandwidth product. Therefore, the use of OFDM technology in radar is attracting more and more attention. .)
    2020-11-19 21:49:39下载
    积分:1
  • CPCOL_2006JAN06_RFA_POM_AN_04
    无线手机使用的集成式功放器/淤波器前端The use of wireless mobile devices, integrated power amplifier / silt-wave front-end(The use of wireless mobile devices, integrated power amplifier/silt-wave front-end)
    2009-03-05 21:00:56下载
    积分:1
  • khelil_diss
    master thesis for wireless ad hoc network
    2009-04-21 00:00:33下载
    积分:1
  • channelization1
    可以实现多相滤波数字信道化,可以自己改各种参数(Multiphase filtering can be digitally channelized, and various parameters can be modified by itself.)
    2018-09-29 16:11:11下载
    积分:1
  • 831551
    微机之间串口通信,实现两台微型计算机之间快速简便的串行通信,()
    2018-06-16 22:20:48下载
    积分:1
  • BPSK
    说明:  用matlab实现简单的bpsk系统,熟悉bpsk系统的特性(Implementing BPSK with MATLAB)
    2019-01-26 16:56:31下载
    积分:1
  • 696516资源总数
  • 106914会员总数
  • 0今日下载