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FivePointCubicMethod
五点三次法实现振动信号趋势项的消除,
1、 计算出数据的均值、均方值、方差 ;
2、 用matlab编制五点三次法消趋势项程序。
3、 在同一坐标下绘出消趋势项前后时域信号,并分析比较。
绘出消趋势项前后信号的自相关函数。( Five points three times a method to achieve the elimination of the trend of the vibration signal,
1, to calculate the mean of the data, the mean square value, variance
2, the preparation of the five points three times France extinction trend procedure using matlab.
3, plotted in the same coordinate consumer trends before and after the time-domain signal, analyzed and compared.
Draw to eliminate the trend before and after the signal autocorrelation function.
)
- 2012-03-15 02:09:43下载
- 积分:1
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Rayleigh
rayleigh信道的仿真,matlab的(Rayleigh channel simulation, matlab)
- 2008-03-11 21:55:45下载
- 积分:1
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PSO
粒子群算法优化多峰函数,对初学者而言是很有帮助的一个东东,希望大家能够喜欢(Particle swarm optimization multimodal function, it is helpful for a beginner stuff, hope you will enjoy)
- 2013-07-19 11:19:23下载
- 积分:1
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LTE-SAE-Model-and-its-Implementation-in-NS-2
LTE/SAE Model and its Implementation in NS 2
- 2014-10-28 20:04:09下载
- 积分:1
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dynamicFBA
基于约束的化学计量模型,进行代谢流量线性优化的函数(Constraint-based stoichiometric model of linear flow optimization metabolic function)
- 2008-01-11 20:34:33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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fengji101
对于数据的丢失用不同的方法进行补缺,并且对不同的补缺方法进行了比较(Filled, for the loss of data in different ways, and a comparison of different methods to fill)
- 2021-04-12 17:28:57下载
- 积分:1
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xianzhen
均匀线阵方向图仿真程序 包括静态方向图 阵列方向图 带切比雪夫权的阵列方向图的仿真(With a cut over the right plane array direction Schiff Figure simulation)
- 2021-04-28 19:48:44下载
- 积分:1
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fingerprint
指纹图像特征提取,采用matlab编程实现(Fingerprint image feature extraction, using matlab programming)
- 2010-07-17 23:45:26下载
- 积分:1
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1
说明: MATLAB CODE FOR IMAGE PROCESSING
- 2013-09-11 12:52:21下载
- 积分:1