PowerPoint

WAVELETSchool of Mechanical Engineering 1013201083 1013201062 1013201068IMC

CONTENTS1.

3.2.IMC2

1.1 (Wavelet) [1]Haar

Shannon

Gass1.IMC3

1.2 wavelet analysiswavelet analysiswavelet transformmother wavelet(1)(2)(3)1.IMC4

1.3 CWTDWTFWTWPD 1.IMC5

1.3 (Short-time Fourier transform)(STFT) O(N) O(Nlog(N)) NO(Nlog(N)) O(N) 1.IMC6

1.1.3 (Short-time Fourier transform)(STFT) O(N) O(Nlog(N)) NO(Nlog(N)) O(N) IMC7

2. A.Grossman19841981J.stormbergY.MeyerS.mallatMallat(Mallat)IMC8[A]Wavelet

3.IMC

IMCY.Meyer MayerP.LemarieG.battleY.MeyerS.mallatSMallat(Mallat)L.Daubechies

10

IMC , , , , ,

11[B]Wavelet

3.IMCWavelet3.

IMC131. 1.1 2

IMC1. 1.2

q . IMC Wavelet[1]+2.

D9/7

h00.602 949 018 236 357 9h10. 266 864 118 442 872 3h2- 0.078 223 266 528 988h3- 0.016 864 118 442 875h40.026 748 757 410 809 8g01.115 087 052 456 994g1- 0.591 271 763 114 24g2- 0.057 543 526 228 49g30.091 271 763 114 249IMC162.

[2]

a- 1. 586 134 342b- 0. 052 980 118 54c0.882 911 076 2d0.443 506 852 2k1.149 604 398

9/ 7 IMC3.

=0=0

, . ,, , z - 1, x ( z ) z - 1

IMCWavelet3.

IMC19

[C]Wavelet

3.IMC

IMC

362166339241275754518138

IMC

db5

IMC

Cfs

Fcbf

fisher_score

IMC

IMC3 1 2 3 4

1-8v13

9-16v23

IMC

2,16,,24

2,7,8

IMCThanks!IMC28

FCBF

EAMFAMKCART

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