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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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Matlab_ImageScrShare
matlab 所使用的車排定位系統主要採svm
非常有參考價值(matlab Chepaizi used by major mining svm positioning system is very useful)
- 2009-04-12 21:37:51下载
- 积分:1
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chapter3
自适应滤波器--最小均方误差法LMS滤波自编程--简明易懂附有注释(Adaptive filter- the minimum mean-square error method LMS filter self-programming- easy to understand annotated)
- 2009-11-06 21:02:38下载
- 积分:1
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computedftmatrix
compute dft matrix, creates a W matrix of size N
- 2011-06-17 14:12:32下载
- 积分:1
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mydspexp1_pujnifa
谱减法实例,已经做过实验,可以运行,只要载入数据即可(Spectral subtraction instance, has done the experiment, you can run, as long as the data can be loaded)
- 2011-06-28 12:27:57下载
- 积分:1
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matlab-parallel-computing
matlab并行计算的工具箱,并行计算的一个简单例子,还有一个distcomp工具箱配置及编程指南(matlab parallel computing toolbox, a simple example of parallel computing, there is a distcomp toolbox configuration and programming guide)
- 2020-07-03 01:00:01下载
- 积分:1
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ztjsANDalignment
卡尔曼滤波实现初始对准,附有姿态解算、姿态变换和姿态修正程序。(Kalman Filtering initial alignment, with attitude solution, posture and attitude transformation fixes.)
- 2020-11-09 18:59:46下载
- 积分:1
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VisualCMATLAB
Visual C++ MATLAB图像处理与识别实用案例精选 pdg格式(tha visual C+++ Matlab)
- 2009-09-27 20:51:05下载
- 积分:1
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jpeg
jpeg image compression
- 2010-08-11 17:13:26下载
- 积分:1
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2
说明: 主要通过几种准正交空时码的性能曲线仿真,比较分析了这几种准正交空时码的优势(Mainly through several quasi-orthogonal space-time codes performance curve simulation, a comparative analysis of these types of quasi-orthogonal space-time codes advantage)
- 2009-10-23 08:56:39下载
- 积分:1