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qpsk
摘 要:根据HFC网络上行信道的特性,建立了信道模型 分析了上行信道中存在的各种噪声对QPSK
调制技术的影响。结果表明在C /N (传输信道载噪比)较低的情况下,采用QPSK调制方式,可以提高系
统的抗干扰能力。
关键词: QPSK 光纤同轴电缆混合网 上行信道 噪声(Abstract: HFC network in accordance with the characteristics of the uplink channel, the establishment of a channel model an analysis of the various uplink channel noise on the impact of QPSK modulation. The results show that the C/N (transmission channel carrier-to-noise ratio) lower, the use of QPSK modulation, can improve the system of anti-interference ability. Keywords: QPSK hybrid fiber coaxial cable network uplink channel noise)
- 2009-04-12 15:45:03下载
- 积分：1
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haimian
基于matlab的海洋通信的基础猜想，采用数字调制，2径仿真，其中损耗采用HUAWEI早年实测模型(Based on the basis of conjecture matlab marine communications, digital modulation, two-path simulation, in which the loss measured using early model HUAWEI)
- 2014-01-17 11:02:00下载
- 积分：1
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1ybus
distributed-generation_distribution-system_Newton-Laphson in matlab mfile
- 2013-09-20 12:09:59下载
- 积分：1
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11
说明： STFT在跳频信号分析中的应用，上传一个论文，供大家参考一下(STFT in signal analysis in frequency hopping applications, upload a paper for the U.S. refer to)
- 2008-05-17 13:12:08下载
- 积分：1
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Quaternion-Functions
This is implemented by Matlab and includes all mathematical functions of Quaternion.
- 2011-01-25 01:00:12下载
- 积分：1
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sphere_rcs
米氏散射，是跨湖湿地哈斯哦三等奖哦啊岁的啊的哦阿萨德哦啊速度快(mie scatting
)
- 2011-10-02 16:21:07下载
- 积分：1
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mohasebat
mohasebate addadi,determain,...
- 2012-08-09 19:19:17下载
- 积分：1
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KNN
一个很好的KNN算法的matlab程序，供参考(it is a good program writting with matlab under windows)
- 2013-12-03 15:58:25下载
- 积分：1
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runPad
电机转子台，断条缩孔的计算等，MATLAB等(Rotor sets, Breaking Shrinkage calculation, MATLAB, etc.)
- 2010-06-22 15:51:06下载
- 积分：1
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AddedChannelequalizationAWGNnoiseeffects
have further added a very simple Linear Equalizer to the code, where I assume that the channel is perfectly known. Note that for equalization to work here, the prefix length must be equal to or greater than the length of the channel.
- 2010-05-23 22:02:41下载
- 积分：1
