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gdp
在MATLAB系统下的BP程序预测GDP(MATLAB system in BP procedures under the GDP forecast)
- 2009-01-08 03:20:28下载
- 积分：1
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foulou
包括 MUSIC算法，ESPRIT算法 ROOT-MUSIC算法，分析了该信号的时域、频域、倒谱，循环谱等,esprit算法对有干扰的信号频率进行估计。( Including the MUSIC algorithm, ESPRIT algorithm ROOT-MUSIC algorithm, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. esprit algorithm signal frequency interference can be assesse.)
- 2016-06-02 18:07:46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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Codes
First a estimate of wireless sensor nodes is made and a network mesh will be created based on some topology techniques. A connection has to be established between Node I and all the vicinity nodes.
- 2013-04-23 22:33:13下载
- 积分：1
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wave
一段小波变换程序，演示了小波变换的具体步骤(Wavelet transform for some procedures, to demonstrate the concrete steps of wavelet transform)
- 2009-05-22 13:36:19下载
- 积分：1
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fskd
MATLAB通信原理FSK调制源代码文件(Communication Theory FSK modulation MATLAB source code files)
- 2010-01-14 12:45:44下载
- 积分：1
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RGA_sscp
這是 GA 的改進版演算法，最大的差別在於能保證每次選出的基因都是更好的(GA improved version of the algorithm, the biggest difference lies in its ability to ensure that each of the selected genes were better)
- 2006-11-07 20:20:12下载
- 积分：1
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DMR_physical
DMR协议物理层仿真链路，仿真主要是针对欧洲电信标准协会的DMR数字对讲机的物理层协议(DMR physical simulation simulink tools)
- 2014-11-12 20:54:11下载
- 积分：1
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emd_hht
用MATLAB编写的EMD（经验模态分解）例程。实现了Hilbert黄变换、经验模态分解等理论算法，里面包含具体应用。(It is EMD sample codes. The Hilbert-Huang transform is coded by Matlab. And the EMD samples are included.)
- 2011-02-12 09:10:39下载
- 积分：1
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8-4-convective-diffusion
对流扩散方程的上风差分，又称为迎风差分。时间项为显性差分。(Convection diffusion equations with upwind difference, also known as the upwind difference. Time for the explicit finite difference.
)
- 2015-03-27 10:45:40下载
- 积分：1
