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multpaht-fading-channel-basic-model
由于多径和移动台运动等影响因素,使得移动信道对传输信号在时间、频率和角度上造成了色散,如时间色散、频率色散、角度色散等等,因此多径信道的特性对通信质量有着至关重要的影响,而多径信道的包络统计特性成为我们研究的焦点。根据不同无线环境,接收信号包络一般服从几种典型分布,如瑞利分布、莱斯分布和Nakagami-m分布。(Because multipath and mobile and other sports influence factor, makes mobile channel in transmission in time and frequency signal and Angle caused the dispersion, such as time dispersion, frequency dispersion, Angle dispersion, and so on, thus multipath channel of communication with the characteristics of quality is very important, while the effect of multipath channel (the statistical properties become the focus of our research. According to different wireless environment, receiving signals envelope general subject to several typical distribution, such as Rayleigh distribution, rice distribution and Nakagami-m distribution.
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- 2012-04-30 10:05:04下载
- 积分:1
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Complex-operation-and-polar-drawing
复数运算与极座标绘图,matlab程序和课件(Complex operation with Polar drawing, matlab program and courseware)
- 2013-03-06 19:09:04下载
- 积分:1
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Hollowtube
运用矩量法计算空心圆筒的电参数,源代码清晰详细,适于学习,附有图片(Calculated using the method of moments electrical parameters of the hollow cylinder, source code, clear and detailed, for learning, with pictures)
- 2011-10-27 22:40:01下载
- 积分:1
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Asuddennoloadshortcircuittwophasedampingwinding
突然两相空载短路有阻尼绕组用matlab编程(A sudden no-load short-circuit two-phase damping winding)
- 2009-05-02 12:36:18下载
- 积分:1
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leach
无线传感器网络仿真LEACH协议,希望有人能改进下(Wireless sensor network simulation LEACH protocal, under the hope that someone can improve)
- 2009-06-11 22:23:12下载
- 积分:1
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MATLAB7_0-teach
MATLAB (matrix laboratory) is a numerical computing environment and fourth-generation programming language. Developed by MathWorks, MATLAB allows matrix manipulations, plotting of functions and data, implementation of algorithms, creation of user interfaces, and interfacing with programs written in other languages, including C, C++, Java, and Fortran.(MATLAB是MATrix LABoratory的缩写,是一款由美国MathWorks公司出品的商业数学软件。MATLAB是一种用于算法开发、数据可视化、数据分析以及数值计算的高级技术计算语言和交互式环境。除了矩阵运算、绘制函数/数据图像等常用功能外,MATLAB还可以用来创建用户界面及与调用其它语言(包括C,C++和FORTRAN)编写的程序。)
- 2011-04-26 12:41:40下载
- 积分:1
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Classical_artificial_neural_network_course_informa
Classical artificial neural network course information
- 2010-08-10 21:40:01下载
- 积分:1
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four-Toolbox-for-SVM
说明: SVM分类器,关键是对信号进行分类,是模式识别的必备宝典(SVM classifier, the key is to classify the signal is essential for pattern recognition Collection)
- 2011-03-20 21:14:30下载
- 积分:1
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DSP
任务:
1) 借助MATLAB画出误差性能曲面和误差性能曲面的等值曲线(参考PPT2.1第17页的两幅图);
2) 写出最陡下降法以及LMS算法的计算公式(取 );
3) 用MATLAB产生方差为0.05, 均值为0白噪音S(n),并画出某次采样得到的波形(即产生任意一个噪声随机序列);
4) 根据 2)中的公式,并利用 3)中产生的S(n),在 1)中的误差性能曲面的等值曲线上叠加画出采用最陡下降法以及LMS法时H(n)的在叠代过程中的轨迹曲线(参考PPT2.1第17页的右下图的曲线1和曲线2)。
5)用MATLAB计算并画出LMS法时 随时间n的变化曲线(对应S(n)的某一次的一次实现)和e(n)波形;
注意:某一次实现的结果并不能从统计的角度反映实验的结果 的正确性,为得到具有统计特性的实验结果,可用足够多次的 实验结果的平均值作为实验的结果。用MATLAB计算并画出 采用LMS法时,J(n)的100次实验结果的平均值随时间n的变 化曲线(即 生成随机噪声信号并计算结果,重复执行100次, 求平均结果)。
6)在 1)中的误差性能曲面的等值曲线上,叠加画出采用LMS法得到的100次实验中的H(n)的平均值的轨迹曲线;
(Task:
1 ) Draw with MATLAB error performance surface and surface contour error performance curve ( refer PPT2.1 two chart on page 17 )
2 ) Write the steepest descent method and the LMS algorithm formula ( take )
3 ) Using MATLAB to generate variance of 0.05 with a mean of 0 white noise S (n), and draw a particular sampling waveform ( ie, any noise generated random sequence )
4 ) based on 2 ) of the formula , and use 3 ) generated in S (n), in a ) the error performance curves superimposed on the surface contour plot using the steepest descent method and the LMS method when H (n) the iterative process in the trajectory curve ( refer PPT2.1 page 17 bottom right of the curves 1 and 2 ) .
5 ) using MATLAB LMS method is used calculate and draw the curve with time n (corresponding to S (n) of a first implementation of a ) and e (n) waveform
Note : in a first implementation of the results are not reflected from a statistical point of view of accuracy of the experimental results ,)
- 2013-11-08 20:09:06下载
- 积分:1
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MATLAB5.Xprogram-and-design
matlab 学习技巧,现在把我用的,也就是对我帮助很大的留个文件传上去,希望对大家有用,第三程序设计(matlab learning skills, and now I use, which is a great help to me to leave a document passed up, we want to be useful, the third program design)
- 2013-08-24 11:45:35下载
- 积分:1