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利用伪随机序列作为发送信号 dppl
说明: 利用伪随机序列作为发送信号,经过信道,产生了频偏和相位偏移,利用数字锁相环的原理实现对信号的频率估计和相位估计,实现信号的载波同步。(The frequency offset and phase offset are generated by using pseudo-random sequence as the transmitting signal through the channel. The frequency estimation and phase estimation of the signal are realized by using the principle of digital phase-locked loop, and the carrier synchronization of the signal is realized.)
- 2018-12-27 10:59:33下载
- 积分:1
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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
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MATLAB
基于matlab的QPSK通讯系统误码率、误比特率和星座图的仿真(Simulation based on Matlab QPSK communication system bit error rate, BER, and constellation)
- 2012-04-10 10:37:40下载
- 积分:1
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qpsk_burst
qpsk突发调制,完美实现qpsk,使用方便,简介,完美运行(qpsk burst modulation, the perfect realization of qpsk, easy to use, Profile, perfect running)
- 2012-10-09 15:36:44下载
- 积分:1
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Walsh-code
Walsh码在CDMA中的具体说明及应用(Walsh code specific instructions and application in CDMA)
- 2020-07-03 09:00:02下载
- 积分:1
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4GMobile
At the beginning of 2004, the standards for third
generation (3G) cellular technology were embodied in 483
Technical Specifications published by the two Partnership
Projects: 3GPP and 3GPP2.
- 2010-09-22 18:12:28下载
- 积分:1
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Turbo
利用3GPP交织器和LTE交织器完成turbo码的仿真并做比较,不同解码算法的比较(Using 3GPP Interleaver and complete LTE interleaver turbo code simulation and comparison, a comparison of different decoding algorithms)
- 2009-09-15 19:40:54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.)
- 2019-01-15 10:49:35下载
- 积分:1
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water_select
MIMO下天线选择matlab仿真实现,比较简单(MIMO antenna selection under)
- 2009-04-09 13:30:09下载
- 积分:1
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串口加调试助手加串口模拟
自己整合的,可直接下载调试使用,傻瓜式文件一体包。(Integration of their own, can be downloaded directly debugging use, fool file integrated package.)
- 2017-10-16 17:28:33下载
- 积分:1