-
xiaobobianhuanyuyingyong
某一直升机齿轮箱上的早期损伤的特征是,在伴随振动信号上产生一个可变周期的非平稳扰动信号。要求按此特征构造一组有物理意义的数据仿真早期故障信号,应用小波变换技术分析故障的特征和发生时刻。(a helicopter gearbox early on the characteristics of the injury, In addition to the vibration signal produced a variable cycle perturbation of non-stationary signals. Click here to request a group of tectonic significance of a physical early fault simulation data signals Application of wavelet transform technical analysis of the features and fault occurred moments.)
- 2007-07-03 02:32:53下载
- 积分:1
-
secgenwav
Second generation wavelets and applications
- 2010-05-17 03:23:57下载
- 积分:1
-
Daubechies4-Hilbert
实现信号希尔伯特变换,以及小波变换,小波变换要求数据长度是2的N次幂(The signal Hilbert transform and wavelet transform, wavelet transform requires that the data length 2 is N th)
- 2013-05-18 23:42:25下载
- 积分:1
-
202
1、求冲激函数、阶跃函数及三角函数的小波变换
2、模极大值曲线
3、求它们的李氏指数(one, seeking impulse function, step function and trigonometry two wavelet transform, modulus maxima curve 3, Lee seeking their index)
- 2007-03-13 11:29:45下载
- 积分:1
-
二维S变换
能够实现二维S变换的MATLAB程序,与Stockwell的经典程序不同(the code which can implements the 2D S-transform)
- 2018-05-09 14:32:07下载
- 积分:1
-
two-dimension-wavelet-transform
此程序用DWT(离散小波变换)实现二维小波变换(discrete wavelet transform )
- 2015-02-01 14:20:31下载
- 积分:1
-
wave
Harr小波具有紧支撑、零调和性和优良的正交性等优点,因此选择它作为小波变换的基函数。对采样数据进行4层小波包变换得到16维的特征样本。(Harr wavelet has compact support, zero reconcile and excellent orthogonality, etc., so choose it as the base function of wavelet transform. 4 layers of sampled data wavelet packet transform feature samples 16 dimensions.)
- 2014-09-17 16:25:07下载
- 积分:1
-
GaborandBP
基于Gabor小波变换和人工神经网络的人脸识别方法,matlab代码。(Based on the Gabor wavelet transform and artificial neural network methods for face recognition, matlab code.)
- 2021-05-14 09:30:02下载
- 积分:1
-
shipinfenxi-
用stft、小波变换、EMD分别对突变信号进行时频分析(With stft, wavelet transform, EMD mutations were signals of time-frequency analysis)
- 2011-05-16 14:43:58下载
- 积分:1
-
work1
基于MATLAB的虚拟实验系统 的源代码
信号与系统 典型课程的演示实验的编程
GUI(the virtual experiment system for signal processing on the matlab)
- 2011-04-20 12:26:54下载
- 积分:1