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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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hrprof.tar
很好很实用的一个小程序!好好体会,有很大的收获(very good)
- 2009-11-23 19:28:03下载
- 积分:1
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svm
svm的源程序,很简单的程序,易懂,非常实用(svm)
- 2009-06-10 22:07:45下载
- 积分:1
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rx_demodulate
OFEM接收机的解调,检测合格,效果良好,本人亲测(the demodulation of OFDM receiver)
- 2013-07-12 20:21:26下载
- 积分:1
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Power-System-Operation-and-Control
Power Systems Debbs Solution
- 2013-09-02 07:51:07下载
- 积分:1
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Electronics-And-Circuit-Analysis-Using-MATLAB
The goals of writing this book are (1) to provide the reader with simple, easy, hands-on introduction to MATLAB (2) to demonstrate the use of MATLAB for solving electronics problems (3) to show the various ways MATLAB can be used to solve circuit analysis problems and (4) to show the flexibility of MATLAB for solving general engineering and scientific problems.
- 2013-11-23 12:21:13下载
- 积分:1
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qtfm
四元数傅里叶变换代码,四元数在图像上的应用(quaternion fourier transform)
- 2012-10-16 21:48:16下载
- 积分:1
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RBF-neural-network
用matlab编程,关于RBF神经网络预测的问题(Using matlab programming, on the RBF neural network prediction problem)
- 2013-10-12 14:19:30下载
- 积分:1
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gpops21
GPOPS是一个可以进行大规模非线性优化的MATLAB工具箱.(GPOPS, short for General Pseudospectral OPtimal Control Software is a Matlab optimal control software designed to implement the Gauss and Radau hp-adaptive pseudospectral methods. These methods approximate the state using a basis of Lagrange polynomials and collocate the dynamics at either the Legendre-Gauss or Legendre-Gauss-Radau points. )
- 2013-11-19 12:46:52下载
- 积分:1
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matlabppt
介绍matlab常用方法,编程技巧的ppt,简单使用(Describes common methods matlab, programming techniques ppt, simple to use)
- 2009-09-05 10:10:36下载
- 积分:1