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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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emd
说明: 经验模态分解(Empirical Mode Decomposition,EMD)法是黄锷(N. E. Huang)在美国国家宇航局与其他人于1998年创造性地提出的一种新型自适应信号时频处理方法,特别适用于非线性非平稳信号的分析处理。(Empirical Mode Decomposition)
- 2019-06-10 15:52:11下载
- 积分:1
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haffuman
关于用MATLAB语言来编写哈夫曼的编码器的程序(Program on the MATLAB language to write the Huffman encoder)
- 2012-04-28 19:07:14下载
- 积分:1
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Simulation1
基于质心算法的无线传感器网络的研究,但是定位精度较低。(Wireless sensor networks based on the centroid algorithm research, but lower positioning accuracy.)
- 2013-04-16 17:08:27下载
- 积分:1
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snake
snake为从网上下载的程序包,该程序包内容较全,涉及了snake的很多改进形式,可以参考。(A good program bag of snake)
- 2011-12-28 16:23:06下载
- 积分:1
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MATH
matlab 绘制偏微分方程的函数 对于绘制偏微分方程的函数和边界曲线非常有参考性(matlab draw a function of partial differential equations for the mapping function of partial differential equations and the boundary curve of a very good reference of)
- 2010-02-08 21:08:47下载
- 积分:1
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simulink-QPSK-bpsk
matlab 中最方便的工具,simulink,本资料中搭建了BPSK,QPSK的simulink.(MATLAB SIMULINK)
- 2012-05-12 12:52:17下载
- 积分:1
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kalman-filter
卡尔曼滤波的labview模型,适用于system identification的labview程序中(kalman filter model of labview)
- 2014-11-11 21:36:03下载
- 积分:1
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CAMSHIFT-Tracking-Algorithm
part1.m
1. Converts 14 image pairs of a video sequence to grayscale.
2. Computes the absolute difference between the pairs yielding 15 images.
camshift.m
1. Implementation of the CAMSHIFT algorithm for tracking a hand in a video sequence.
Executing this project from within Matlab
At the command prompt enter:
>>part1
>>camshift
- 2013-05-09 02:09:41下载
- 积分:1
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QPSKberPerformance
代码为QPSK半分析方法计算误码率,下载后直接运行就行了(code for QPSK semi-analytic method BER, downloaded directly running on the line)
- 2006-12-06 19:38:28下载
- 积分:1