-
grp_filter_frequency
从频率域对线性群时延失真和抛物线群时延失真进行仿真设计(From the frequency domain for linear parabolic group delay distortion and group delay distortion simulation design)
- 2010-03-13 12:48:13下载
- 积分:1
-
cannysuanzi
自己编的canny算子,可识别出图像中物体的轮廓,经典算法之一.(canny operator can identify the contours of objects in an image, one of the classic algorithms.)
- 2014-08-22 15:36:33下载
- 积分:1
-
STFT
matlab编程时不采用工具箱内的内部函数specgram,按照计算过程直接编写仿真程序(matlab stft)
- 2011-10-27 16:12:13下载
- 积分:1
-
code
matlab从入门到精通 第二版 例题原码 第一章(matlab entry to the master of the second edition ,the original code examples)
- 2014-11-19 16:40:56下载
- 积分:1
-
danbai
单摆的运动仿真,可以求解小球的速度及角速度,考虑空气阻力对于小球速度的影响(Pendulum motion simulation, can solve the speed and angular velocity of the ball, air resistance into account the impact speed for the ball)
- 2011-11-21 10:37:05下载
- 积分:1
-
cluster
利用聚类算法实现的分类小程序,简单实用,很容易就可以提取出聚类算法,绝对无误运行。(Clustering algorithm using the classification of small program, simple and practical, it is easy to extract the clustering algorithm, is absolutely correct operation.)
- 2010-08-08 11:27:59下载
- 积分:1
-
MIMO程序
说明: 老外的MIMO程序,实现不同收发天线数,不同调制方式下的误比特率测量,运行ui-start(foreigners MIMO procedures to achieve different transceiver antenna several different modulation under the bit error rate measurements, run ui- start)
- 2005-12-13 23:27:11下载
- 积分:1
-
samira
some usefull matlab code to practice matlab
- 2011-06-13 15:57:48下载
- 积分:1
-
dsp
说明: 基于代码生成的28337磁悬浮双环pid控制(embedded code for 28377 based matlab)
- 2020-07-01 18:40:02下载
- 积分:1
-
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