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28-41
《MATLAB时尚百例实例》实例28-41()
- 2007-07-11 15:00:57下载
- 积分：1
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otimization-problem
This algorithm solves the otimization problem
min_x | y - A x |_2^2 + lambda Phi(x)
and has applications in compressed sensing, image restoration
and reconstruction, sparse regression, and several other problems.
- 2020-11-22 22:29:35下载
- 积分：1
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Wavelet_OMP
随机矩阵为小波变换的压缩传感，包含有系数采样、随机矩阵、重构算法程序(compressive sensing)
- 2013-11-06 10:37:23下载
- 积分：1
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DSPII_USTC_01
传统的宽带信号中抑制正弦干扰的方法是采用陷波器(notch filter),为此需要精确知道干扰正弦的频率.然而当干扰正弦频率是缓慢变化时,且选频率特性要求十分尖锐时,则最好采用自适应噪声抵消的方法.下图是用一个二阶FIR的LMS自适应滤波器消除正弦干扰的一个方案。该代码实现了以下功能：
1) 借助MATLAB画出了滤波器的误差性能曲面和误差性能曲面的等值曲线；
2） 给出了最陡下降法以及LMS算法的计算公式；
3） 用MATLAB产生了方差为0.05, 均值为0白噪音S(n)，并画出某次采样得到的波形；
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了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；
5）用MATLAB计算并画出了LMS法时误差随时间n的变化曲线（对应S(n)的某一次的一次实现）和e(n)波形；
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；
7）最终对结果进行了分析，具体见压缩包的word文档。
(Wideband signal in the conventional sinusoidal interference suppression method is the use notch filter (notch filter), this requires precise knowledge of the frequency of a sinusoidal interference . However, when the interference frequency sinusoidal changes slowly , and the selected frequency characteristic requirements are very sharp , then best use of adaptive noise cancellation method . following figure is a second-order FIR LMS adaptive filter to eliminate a program sinusoidal interference . The code implements the following functions:
A ) draw with MATLAB error performance of the filter surface and the surface contour error performance curve
2 ) gives the steepest descent method and the LMS algorithm formula
3 ) generated using MATLAB variance of 0.05 with a mean of 0 white noise S (n), and draw a particular sampling waveform
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 pl)
- 2013-11-06 13:12:36下载
- 积分：1
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chengxu
参数变化对最小相位系统的影响，动态矩阵算法（DMC）仿真实例。(Effects of parameter changes on the minimum-phase system。Dynamic matrix algorithm (DMC) simulation.)
- 2013-12-27 13:59:53下载
- 积分：1
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Simulink
通信系统仿真开发手册1，2。相当全面了，里面含有操作步骤的截图和详细说明，是个不错的学习资料(Communication System Simulation Development Manual 1,2. Fairly comprehensive, and which contains the steps of the screenshots and details, is a good learning materials)
- 2010-05-14 11:35:49下载
- 积分：1
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cognitiveradio
认知无线电中最经典的文献 多看看吧 (Cognition radio most classical literature )
- 2010-05-07 21:27:19下载
- 积分：1
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qu106
基于人工神经网络的常用数字信号调制，代码里有很完整的注释和解释，基于多相结构的信道化接收机。( The commonly used digital signal modulation based on artificial neural network, Code, there are very complete notes and explanations Channelized receiver based on multi-phase structure.)
- 2021-03-26 23:09:13下载
- 积分：1
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cfmatrix
简单的获取分类器融合矩阵的matlab程序，利于初学者理解融合矩阵的含义(Get simple classifier fusion matrix matlab program, which will help beginners to understand the meaning of the integration matrix)
- 2013-12-18 20:44:24下载
- 积分：1
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task3_xingxin
形心法测距测速，给出了在没有噪声和有噪声两种情况下用形心法测出的数据，还有关键图形(Loading range speed, without noise and noise are given in both cases using fractal method to measure the data, and key graphics)
- 2020-07-15 14:38:50下载
- 积分：1
