Wavelets in Engineering Applications

图书标准信息

• 作者 罗高涌 著
• 出版社 科学出版社
• 出版时间 2014-06
• 版次 1
• ISBN 9787030410092
• 定价 78.00元
• 装帧 平装
• 开本 16开
• 纸张 胶版纸
• 页数 196页
• 字数 400千字
• 正文语种 简体中文

【内容简介】

《Wavelets in Engineering Applications》收集了作者所研究的小波理论在信息技术中的工程应用的十多篇论文的系统化合集。书中首先介绍了小波变换的基本原理及在信号处理应用中的特性，并在如下应用领域：系统建模、状态监控、过程控制、振动分析、音频编码、图像质量测量、图像降噪、无线定位、电力线通信等，分章节详细的阐述小波理论及其在相关领域的工程实际应用，对各种小波变换形式的优缺点展开细致的论述，并针对相应的工程实例，开发出既能满足运算精度要求，又能实现快速实时处理的小波技术的工程应用。因此，《Wavelets in Engineering Applications》既具有很强的理论参考价值，又具有非常实际的应用参考价值。

【作者简介】

 

【目录】

CONTENTS
PREFACE
ChApter1WAVELETTRANSFORMSINSIGNALPROCESSING1Introduction1
1.1ThecontinuouswAvelettrAnsform2
1.2ThediscretewAvelettrAnsform3
1.3
1.4TheheisenberguncertAintyprincipleAndtime-frequencydecompositions5
1.5Multi-resolutionAnAlysis5

1.6SomeimportAntpropertiesofwAvelets6

1.6.1CompActsupport6
RAtionAlcoe.cients6

1.6.2
1.6.3Symmetry6
Smoothness6

1.6.4
1.6.5NumberofvAnishingmoments7

1.6.6AnAlyticexpression7

1.7CurrentfAstWTAlgorithms7

1.7.1OrthogonAlwAvelets7

1.7.2SemiorthogonAl(nonorthogonAl)wAvelets8

1.7.3BiorthogonAlwAvelets8

1.7.4WAveletpAckets9
HArmonicwAvelets9

1.7.5
Discussion9

1.8REFERENCES10
ChApter2SYSTEMMODELLING12
Introduction12

2.1
2.2TheunderlyingprincipleofFourierhArmonicAnAlysis13

2.3AutocorrelAtionwAveletAlgorithm14

2.4VibrAtionmodelselectionwithFTAndAutocorrelAtionwAveletAlgorithm16
2.5Coe.cientsestimAtionwithleAst-squAresAlgorithm17

ResultsAnddiscussion19

2.6
2.7ConditionmonitoringofbeAring23

2.8ConcludingremArks28

REFERENCES28
ChApter3CONDITIONMONITORING30

3.1WAveletAnAlysis30

3.2FilterdesignAndfAstcontinuouswAveletAlgorithm32

3.3SmAlldefectdetectionofbeAring37

3.3.1Speci.cfrequencyrAngesmonitoring39

3.3.2Signi.cAntAndnAturAlfrequenciesmonitoring39

3.4ConcludingremArks41
REFERENCES42

ChApter4PROCESSCONTROL43
Introduction43

4.1
4.2VibrAtionAndsurfAcequAlity44

4.2.1TheoreticAlcAlculAtionofsurfAcequAlity44

4.2.2VibrAtionduringmAchining46

4.3AdAptivesplinewAveletAlgorithm47

4.3.1BAttle-LemAri′ewAvelet.lterdesign47

4.3.2ArbitrAry.netime-scAlerepresentAtion49

4.3.3AdAptivefrequencyresolutiondecomposition51

4.4Methodologyofexperiment53
ResultsAnddiscussions55

4.5
4.5.1ExperimentAlresults55
Discussions63

4.5.2
4.6ConcludingremArks64
REFERENCES65

ChApter5VIBRATIONANALYSIS67
Introduction67

5.1
5.2MAchiningprocessvibrAtion68

5.3WAveletAlgorithmwithcross-correlAtion69

5.4ExperimentAlset-up71

5.5ExperimentAlresults73
Discussion77

5.6
5.7ConcludingremArks79
REFERENCES80

ChApter6AUDIOCODING82

Introduction82

6.1
6.2DSPImplAntAtionofliftingwAvelettrAnsform84

6.3EmbeddedcodingAnderrorresilience88

6.4ResultsofexperimentAndsimulAtion91
Conclusions93

6.5REFERENCES94
ChApter7IMAGEQUALITYMEASUREMENT96

Introduction96

7.1
7.2WAveletAnAlysisAndtheliftingscheme98

7.3ImAgequAlityevAluAtion102

7.3.1ImAgenoiseAnAlysis104

7.3.2ImAgeshArpnessAnAlysis105

7.3.3ImAgebrightnessAnAlysis106

7.3.4ImAgecontrAstAnAlysis106

7.3.5ImAgeMTFAnAlysis107

7.3.6ImAgequAlityquAnti.cAtionAndclAssi.cAtion107

7.3.7OptimisAtionofweightingcoe.cients108

7.4ExperimentAlresultsAnddiscussions110
Conclusions118

7.5REFERENCES119
ChApter8IMAGEDENOISING121
Introduction121

8.1
8.2FAstliftingwAveletAnAlysis123

8.3NoisereductionwithwAveletthresholdingAndderivAtive.ltering127GenerAlnoisereduction127
8.3.1Finenoisereduction128
8.3.2
8.4ExperimentAlresultsAnddiscussions131
Conclusions135

8.5REFERENCES135
ChApter9WIRELESSPOSITIONING138
Introduction138

9.1
9.2WAveletnotch.lterdesign140

9.3SystemmodelAndnArrowbAndinterferencedetection145

9.4ExperimentAlresultsAnddiscussions147
Conclusions155

9.5
REFERENCES155

ChApter10POWERLINECOMMUNICATIONS157
Introduction157

10.1
10.2MulticArrierspreAdspectrumsystem162

10.3CArrierfrequencyerrorestimAtionAndcompensAtion169

10.4Time-frequencyAnAlysisofnoise170

10.5NoisedetectionAnd.ltering175

10.6ExperimentAlresultsAnddiscussions178
Conclusions183

10.7REFERENCES184