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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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20041006
粒子群神经网络的预测编程实现,电力负荷预测本人已实现(Particle Swarm neural network predictive programming, I realized the power load forecast)
- 2013-02-24 23:02:52下载
- 积分：1
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donglixuefangzhen_tanhuangbai
利用matlab进行动力学仿真之三，学习理论力学的同学可以参考一下(Dynamics simulation carried out using matlab third of the students to learn theoretical mechanics reference)
- 2008-07-23 11:30:35下载
- 积分：1
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dongtaichuanjiankongjian
案例设计源程序，matlab动态创建控件，有函数有界面的设计(Case design source, matlab dynamically created controls, there are functions with interface design)
- 2013-09-02 16:02:46下载
- 积分：1
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Advanced-algorithms
在本讲义中，我们将着重讲述一些数学建模中常用的算法，包括神经网络算法、遗传算法、模拟退火算法和模糊数学方法。(In this lecture, we will focus on talk about some commonly used mathematical modeling algorithms, including neural networks, genetic algorithm, simulated annealing algorithm and fuzzy mathematics.)
- 2011-05-11 16:54:59下载
- 积分：1
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Copy-ofccccccc-LEACH
matlab code for leach protocol
- 2011-06-13 19:09:27下载
- 积分：1
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interp-spline
三次样条插值的具体算法,适用于一维信号的插值处理(spline function including the basic theory one-dimension singnal)
- 2015-03-03 19:32:21下载
- 积分：1
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Math_CAI_PPT
MATLAB程序设 MATLAB语言与现代科学运算 高等应用数学问题的MATLAB求解(MATLAB program based MATLAB language and application of modern science and advanced computing to solve mathematical problems in MATLAB)
- 2010-09-10 16:56:16下载
- 积分：1
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FCM
模糊聚类分析传递闭包算法FCM的matlab程序，能对数据进行分类处理(Fuzzy Cluster Analysis of transitive closure of the FCM algorithm matlab program can deal with data classification)
- 2008-03-12 17:43:45下载
- 积分：1
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music2
本程序主要是关于基本的music的MATLAB仿真，是关于这方面的一个例子，由仿真结果可以看出这个程序的代表性。(This procedure is mainly on the basic music of the MATLAB simulation, is an example in this regard, the simulation results show that the representation of this process.)
- 2010-05-19 15:18:46下载
- 积分：1
