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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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self_relation
使用自相关方法去除信号中的高斯白噪声,提取出目标信号,对做信号处理的十分实用(Using the autocorrelation method to remove Gaussian white noise in the signal, extract the target signal, very practical to do signal processing)
- 2013-03-06 11:02:11下载
- 积分:1
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非线性不确定系统的鲁棒滑模观测器设计
用MATLAB还原一篇论文中的滑模观测器设计,含论文(Using MATLAB to Restore a Sliding-Mode Observer Design in a Paper with Papers)
- 2020-06-29 00:00:02下载
- 积分:1
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dongtaibizhang
自己写的模拟动态避障,基于局部信息的,障碍物包括一个静态一个动态,可以运行(Self-written simulation of dynamic obstacle avoidance, based on local information, obstacles include a static and a dynamic, can run)
- 2021-04-14 16:18:55下载
- 积分:1
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MeanShift
File that given the data to cluster and the bandwith returns the number of clusters, its centroids and its distributions
- 2010-12-09 19:02:37下载
- 积分:1
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MATLABPR2012bPcrack
matlab 2012b 完美破解的方法,77个工具箱都可以用(matlab 2012b crack perfect way 77 toolbox can be used)
- 2013-09-30 09:42:03下载
- 积分:1
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LMS_algorithm_filter
基于LMS算法,此程序用于产生凹口滤波器(Based on LMS algirithm,this codes are useded to creat adapyive filter.)
- 2009-12-22 11:09:01下载
- 积分:1
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Boyd_CG_2006
一维时域有限差分算法,能够进行波的模拟研究(One-dimensional FDTD algorithm for wave simulation can)
- 2010-05-11 21:38:00下载
- 积分:1
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maple
maple的入门级教程,maple的计算相比matlab更加简单也更容易上手(The entry-level tutorial maple, maple computing matlab simpler and easier to use compared to)
- 2014-01-13 10:26:06下载
- 积分:1
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STOCHASTIC
相信大家已经注意到了,伴随着微观金融理论的发展,以随机分析为核心的数学理论
也在同步发展,并不断为金融学家们所吸收和运用,它们交织在一起,密不可分又相映生
辉②。它们相映生辉倒不要紧,但就给研究者带来了很多困难:由于微观金融学研究重点的
特殊性和复杂性(不确定性和动态性),注定以随机分析作为其主要数学工具,这无形中提
高了这一学科的门槛③。
- 2010-11-25 11:05:34下载
- 积分:1