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8
说明： 8. 单径瑞利信道中的四发四收V-BLAST：
(1) 请设计一种具体的导引辅助的信道估计方法，用Simulink进行仿真，测量16QAM调制时的误码率性能。画出比特信噪比与信道估计均方误差的关系曲线，画出比特信噪比与误码率的关系曲线。
(2) 计算所设计方案的频谱效率是多少，单位为bit/Hz/s。(8. Four transmit four receive v-blast in single-path Rayleigh channel:
(1) please design a specific navigation-assisted channel estimation method and conduct simulation with Simulink to measure the bit error rate performance of 16QAM modulation.The relation curve between the bit signal-noise ratio and the mean square error of channel estimation is drawn, and the relation curve between the bit signal-noise ratio and the bit error rate is drawn.
(2) calculate the spectral efficiency of the designed scheme in bit/Hz/s.)
- 2020-12-23 20:29:05下载
- 积分：1
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PAPR
OFDM中降低峰均比的方法，将传统的SLM法，改进的SLM法和限幅加改进SLM法进行比较(Compare OFDM PAPR reducing methods in the traditional SLM method, improved SLM method and limiter plus improved SLM method)
- 2014-05-10 16:18:09下载
- 积分：1
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matlab
很好的算法，很好的程序，能够实现最小信道的确定(It s a good code ,and it s a good program ,it can make something true )
- 2013-07-01 16:22:45下载
- 积分：1
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java2e
JAVA编程，第二版，纯英文版本，不是国内翻译后的版本，可能需要英文功底比较好的网友(Beginning Programming With Java For Dummies, 2nd Edition)
- 2009-11-17 13:08:15下载
- 积分：1
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Leture-notes-on-network-information-theory
Very good reference materials on network information theory
- 2011-07-22 16:20:21下载
- 积分：1
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ldpc_encode
本程序是对低密度奇偶校验码的校验矩阵的源程序，相信会对研究ldpc码的人会很有帮助的(This procedure is a low-density parity check matrix of code source, I believe that research on LDPC codes will be very useful)
- 2008-05-19 23:06:46下载
- 积分：1
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大程序
说明： 迭代信道估计，ls信道估计方式 MMSE均衡 迭代了四次(4times iterative channel estimation with LS and MMSE)
- 2020-07-30 07:48:00下载
- 积分：1
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kdtree
kd树，matlab源码 kd树，matlab源码(kdtree wiritten in matlab)
- 2020-12-23 16:29:08下载
- 积分：1
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asd
航空航天通信技术一般采用模拟通信的频率调制和数字通信的移相键控调制方法。这有利于充分应用信道带宽和能源。频率调制是在一定程度上改变载波或副载波的频率来传输信息的调制方法。移相键控调制是利用载波或副载波的相位跳变来传输信息的调制方法。移相键控又分二相移相键控、四相移相键控和多相移相键控，其中以四相移相键控和八相移相键控调制方法的效率较高(Aerospace communications technology commonly used analog communication of frequency modulation and the digital communication phase shift keying modulation method. This is helpful for making full use of channel bandwidth and energy. Frequency modulation is changed to some extent carrier or subcarrier frequency to transmit information modulation method. Phase shift keying modulation is the use of carrier or subcarrier phase jump to transmit information modulation method. Phase shift keying and binary phase shift keying, four phase shift keying and multiple phase shift keying, of which four phase shift keying and eight phase shift keying modulation method of high efficiency
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- 2011-07-13 11:21:08下载
- 积分：1
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Notify
一个事件提醒程序,类似于手机中的事件提醒(An event to remind the procedure, similar to events in the mobile phone to remind)
- 2007-09-11 08:37:33下载
- 积分：1
