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HPfuntionuseinmatlabsoftware
这是一个关于matlab下HP滤波器函数代码,非常好用(it is HP funtions used in matlab software)
- 2010-08-04 14:26:48下载
- 积分:1
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用Welch法进行功率谱估计
考虑L的三个不同值:L=256(3个数据段),L=128(7个数据段)和L=64(15个数据段)。各自的谱估计图如上图所示。可以明显的看到,加窗明显的减小了频谱上的假谱峰,但也更加进一步平滑了谱峰。所以,对于L=64的情况,在ω=0.8π的谱线可以很确定的辨认,但是那两个靠近的谱峰不容易区分。对于L=128的情况,这种情况提供了在分离和检测间最好的均衡。当然,对于在L=256时的情况,效果是更好的,能够从谱估计图上明显的分辨出三条谱线的存在以及它们幅度关系的强弱。 除了Welch法外,还可以采用对多个周期图求平均的功率谱估计方法的其他方法如Bartlett法等等,在功率谱估计上也能取得较好的结果。(consider three different values : L = 256 (3 data), L = 128 (7 data) and L = 64 (15 data). Their spectral estimation map as shown in Fig. It is clear to see that increase significantly decreasing window of the spectrum of false peaks, but much more to further smooth the peaks. Therefore, L = 64, in the case = 0.8 spectrum can determine the identification, but that the two peaks around is not easy to distinguish. L = 128 for the situation, which provided the separation and detection among the best balanced. Of course, L = 256 in the case, the effect is better, from the spectral estimation map clearly distinguish between the three lines of the existence and their relationship to the rate of strength. In addition to Welch law, but also can be used to map multiple cycle for the average power)
- 2005-07-12 11:18:13下载
- 积分:1
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adaptive-project
this is a MATLAB Simulation for a Adaptive PID controller based on a sliding mode for uncertain chaotic systems.
- 2011-05-11 22:08:32下载
- 积分:1
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initfcm
说明: 计算模糊C-均值聚类中的初始隶属度值,并进行调节(clculate the initial degree of membership)
- 2011-03-24 15:03:59下载
- 积分:1
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tishengxiaobobao
与传统的小波分解相比,提升小波可以实现整数小波变换,其方法与一般去噪法相同,都是对小波分解的高频系数进行阈值量化来达到去噪的目的。(Compared with the traditional wavelet, lifting wavelet can achieve integer wavelet transform, its the same way as regular de-noising method, are the high-frequency coefficients of wavelet decomposition threshold quantization to achieve the purpose of de-noising.)
- 2014-11-06 13:57:44下载
- 积分:1
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MatlabSRC
说明: 精通Matlab综合辅导与指南-源程序随书带的光盘(proficient Matlab comprehensive counseling and guidance-source book with a CD-ROM)
- 2006-05-03 18:12:04下载
- 积分:1
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xianxingshenjingwangluo3
matlab上编写的有关人工神经网络的线性神经网络的程序例子xor_madaline和and_pinv(Matlab based on the development of artificial neural networks on a linear neural network program examples)
- 2013-08-04 15:17:42下载
- 积分:1
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EMD
EMD算法的完整Matlab程序,包含了多种形式的EMD算法。(EMD algorithm integrity Matlab procedures, including various forms of EMD algorithm.)
- 2013-10-16 22:08:25下载
- 积分:1
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nonlinearchar
this mdl shows the non linear characteristics of the fuzzy controller
- 2010-02-01 14:27:01下载
- 积分:1
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tfrppage
说明: page变换例程,可以对信号进行柯恩类时频分布中的page变换(page conversion routines, you can type on the signal time-frequency distribution of Cohen)
- 2008-10-13 10:48:10下载
- 积分:1