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main(QPSK)
说明: 基于matlab实现OFDM,调制方式为QPSK,可以对信道的状态进行估计(OFDM is realized based on MATLAB, the modulation mode is QPSK, and the channel state can be estimated)
- 2021-03-04 15:40:19下载
- 积分:1
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h5聊天室仿红包群微信群源码
说明: h5聊天室仿红包群微信群源码,可以发红包,做一个网站版的聊天室。(H5 Chat Room Micro Message Group Source Code Imitating Red Packet Group)
- 2020-06-23 04:20:01下载
- 积分:1
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位同步源代码bitsynchronization
位同步源代码,是关于MATLAB的,很好的,并且具体有调制解调的功能!(Bit synchronization source code on MATLAB, very good, and the specific modulation and demodulation functions)
- 2012-07-23 17:17:13下载
- 积分:1
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bacnet-stack-0.8.0
Bacnet steak 0.8 version
- 2013-04-12 09:53:45下载
- 积分:1
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2
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.)
- 2021-01-23 19:48:44下载
- 积分:1
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5
说明: OFDM系统仿真 ----比较OFDM系统的IDFT/DFT实现与模拟调制实现仿真代码,其中假设OFDM系统包含8个子载波,fc=1 Hz,子载波频率间隔为1 Hz,每个子载波采用4-QAM调制,符号周期为1秒(OFDM IDFT/DFT 4-QAM FFT/IFFT)
- 2018-05-09 23:07:55下载
- 积分:1
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llvbo
用C语言设计数字滤波器,实现低通,带通,高通,带阻功能(Digital filter design using C language, to obtain Low pass, band pass, high pass, band-stop function)
- 2016-03-02 13:37:49下载
- 积分:1
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Frequencyconversion
说明: 变频器使用手册
MM440使用手册
西门子通用变频器应用实例手册(Inverter Manual Manual Siemens MM440 Inverter Application Manual Universal)
- 2010-04-09 14:46:36下载
- 积分:1
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AddressList
提供通讯录成员的查询、增加、更新及删除等功能。(Provide contacts membership query, add, update, and delete functions.)
- 2013-09-24 19:26:07下载
- 积分:1
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TP900S工具和驱动文件2.2(简版)
振中TP900S工具及驱动下载,仅供学习参考用途。(Vibrating TP900S Tool and Driver Download)
- 2018-12-15 12:33:32下载
- 积分:1