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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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BaiTH2
Detectec Detectec Detectec Detectec Detectec Detectec Detectec Detectec Detectec Detectec Detectec Detectec Detectec Detectec
- 2013-11-13 06:30:12下载
- 积分:1
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MATLAB-LPF-DESIGN
低通滤波器设计
绘制各种响应曲线
绘制输入信号曲线
绘制滤波后效果曲线(LPF DESIGN
ALL CURVES
INPUT SIGNAL
OUTPUT SIGNAL)
- 2015-04-29 09:42:44下载
- 积分:1
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pid参数整定
本文使用遗传算法对pid进行在线整定,效果明显有于传统pid(In this paper, the genetic algorithm for pid online tuning, the effect is obvious in the traditional pid)
- 2021-04-28 17:18:43下载
- 积分:1
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Bayesian
基于贝叶斯理论,针对五层框架结构,利用模型更新的原理对结构物理参数进行识别(Based on the Bayesian theory, the structural physical parameters are identified by the principle of model updating for the five-layer frame structure)
- 2017-05-11 10:16:33下载
- 积分:1
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CPSS
This file is simulation of PSS in matlab simulink.
This file is helpful for understanding POWER SYSTEM.
- 2016-07-13 02:28:39下载
- 积分:1
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MATLAB_code
用matlab实现动画的制作,三维、二维制图,图像处理。。。。(Animation, drawing. . .)
- 2010-06-08 19:53:43下载
- 积分:1
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MATLAB-7.X_PDF
深入浅出MATLAB 7.X溷合编程 董维国 编着.pdf和适合初学者(MATLAB 7.X blends as easily comprehensible programming Dong Weiguo ed. Pdf and suitable for beginners)
- 2011-05-16 13:01:54下载
- 积分:1
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daima
基于matlab的几种语音信号端点检测方法(Several based on matlab voice signal endpoint detection method)
- 2013-09-21 08:59:03下载
- 积分:1
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zhidongxi_abs
基于matlab的汽车制动系统和ABS系统的仿真,有5个.m后缀文件,可以完美运行。(Matlab simulation of automotive brake systems and ABS system based, there are five. M file extension, you can run perfectly.)
- 2014-06-08 14:52:48下载
- 积分:1