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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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PID
最优控制率下的PID控制器参数，使其具有更好的鲁棒性和自适应的能力。(Optimal control rate of PID controller parameters, it has better robustness and adaptive capacity.)
- 2011-07-11 20:58:53下载
- 积分：1
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menpou
多姿态，多角度，有不同光照,到达过程是的泊松过程，使用拉亚普诺夫指数的公式。( Much posture, multi-angle, have different light, Arrival process is a Poisson process, Raya Punuo Fu index using the formula.)
- 2016-05-23 15:46:34下载
- 积分：1
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cp0801_Gnoise2
超宽带高斯噪声的计算2，与其他的几个共用(Ultra-Wideband Gaussian noise calculation 2, and some other common)
- 2009-03-26 20:20:13下载
- 积分：1
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knnclassification
这是一个KNN分类器的matlab函数（K近邻分类器）,可自由选择参数k(it s a KNN classifier program of the matlab ,you can chose the parameter k to conduct the classify procedure )
- 2012-06-03 20:19:44下载
- 积分：1
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arma_mle
ARIMA modeling and estimation
- 2014-10-22 14:58:18下载
- 积分：1
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EMD
steganography using EMD (exploide modification directions)
- 2014-09-25 17:59:02下载
- 积分：1
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polyfilter
A polyphase filter like the filter function in Matlab.
- 2009-09-08 21:46:35下载
- 积分：1
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RadarSignals
RADAR信号生成，有很多子程序，均可以运行(RADAR signal generation, many subroutines, can run)
- 2013-12-15 21:21:24下载
- 积分：1
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matlab
matlab 例程下载 从MATLAB爱好者上下的。。
- 2010-01-24 20:29:12下载
- 积分：1
