Understanding Active Noise Control

個数:

Understanding Active Noise Control

  • 在庫がございません。海外の書籍取次会社を通じて出版社等からお取り寄せいたします。
    通常6~9週間ほどで発送の見込みですが、商品によってはさらに時間がかかることもございます。
    重要ご説明事項
    1. 納期遅延や、ご入手不能となる場合がございます。
    2. 複数冊ご注文の場合、分割発送となる場合がございます。
    3. 美品のご指定は承りかねます。
  • 製本 Hardcover:ハードカバー版/ページ数 162 p.
  • 言語 ENG,ENG
  • 商品コード 9780415231916
  • DDC分類 620.23

Full Description


Understanding Active Noise Cancellation Provides a concise introduction to the fundamentals and applications of active control of vibration and sound for the non-expert. It is also a useful quick reference for the specialist engineer. The book emphasises the practical applications of technology, and complex control algorithms and structures are only discussed to the extent that they aid understanding. Extensive recommendations for further reading on the subject are provided, but the text will stand alone for those seeking an overview of the key issues: fundamentals, control systems, transducers, applications and possible future directions.

Table of Contents

Preface                                            ix
Acknowledgements x
A Little History 1 (8)
Introduction 1 (1)
Early History 2 (3)
Later History 5 (1)
Current Commercial Applications 5 (1)
The Future 6 (3)
Foundations of Active Control 9 (22)
Physical Mechanisms 9 (2)
Basic Structure of Active Noise Control 11 (8)
Systems
Adaptive Feedforward Control 12 (4)
Feedback Control 16 (2)
Waveform Synthesis 18 (1)
Control System Optimization 19 (12)
Control Source Output Power and Placement 21 (4)
Influence of Error Sensor Placement 25 (2)
Influence of Reference Signal Delay and 27 (4)
Quality
The Electronic Control System 31 (38)
Introduction 31 (1)
Digital Filters (Adaptive Control Filters) 32 (4)
Adaptation Algorithms for Adaptive Filters 36 (23)
Single-Channel FXLMS Algorithm for FIR 36 (1)
Filter Weight Adaptation
Feedforward Control 36 (6)
Delayed FXLMS Algorithm 42 (1)
Feedback Control 42 (1)
Hybrid Feedforward / Feedback Control 43 (1)
Cancellation Path Transfer Function (or 44 (2)
Impulse Response) Estimation
Random Noise Modelling Signal 46 (1)
Overall Modelling 47 (2)
Comparison of Pseudo-Random Noise and 49 (1)
Overall Modelling Approaches
Leaky Single-Channel FXLMS Algorithm 49 (1)
Multi-Channel FXLMS Algorithm 50 (1)
Frequency Domain FXLMS Algorithm 51 (1)
Filtered-U RLMS Algorithms for IIR Filters 52 (1)
Genetic Agorithms 53 (3)
Killing Selection Instead of Survivor 56 (1)
Selection
Weight String Instead of Binary Encoding 57 (1)
Mutation Probability and Amplitude 57 (1)
Rank-Based Selection (Killing and 57 (1)
Breeding)
Uniform Crossover 58 (1)
Genetic Algorithm Parameter Adjustment 58 (1)
Performance Measurement 58 (1)
Waveform Synthesis 59 (1)
Important Controller Implementation Issues 60 (9)
Microprocessor Selection 60 (1)
Converter Type and Group Delay 61 (1)
Considerations
Digital Sampling Rate 62 (1)
Algorithm Considerations 63 (1)
Accuracy of Controller Output 63 (1)
Estimation of The Potential of ANC 64 (1)
Without Using a Controller
Controller Processor Overload 65 (1)
Number of Error Signals 66 (3)
Active Noise Control Sources 69 (12)
Introduction 69 (1)
Acoustic Sources 69 (6)
Loudspeakers 69 (3)
Tuned Cavity-Backed Panels 72 (1)
Acoustic Boundary Control 73 (2)
Tuned Resonator 75 (1)
Compressed Air Sources 75 (1)
Vibration Sources 75 (6)
Piezo-Electric Patch Actuators 76 (1)
Piezo-Electric Stack and Magnetostrictive 77 (1)
Actuators
Inertial Actuators 78 (1)
Distributed Vibration Actuators, Shaped 78 (2)
Vibration Actuators and Actuator Grouping
Tuned Vibration Absorbers 80 (1)
Other Types of Vibration Actuator 80 (1)
Reference and Error Sensing 81 (30)
Microphones 81 (2)
Tachometer Reference Signal 83 (4)
Waveform Synthesis 84 (1)
Filtering 84 (1)
Non-Linear Transformation 85 (1)
Simple Look-Up Tables 85 (1)
Time Domain Measurement 86 (1)
Sound Intensity 87 (1)
Energy Density 88 (5)
Virtual Sensing 93 (4)
Virtual Sound Pressure (Virtual 93 (1)
Microphone)
Transfer Function Method 93 (1)
Forward Prediction Method 94 (2)
Virtual Energy Density 96 (1)
Vibration Sensing of Sound Radiation 97 (9)
Control Algorithms for Various Sensing 106(5)
Strategies
Shaped or Distributed Structural Sensors 106(1)
Sound Intensity 107(3)
Energy Density 110(1)
Applications of Active Noise Control 111(22)
Some General Considerations 111(1)
Application Examples 112(18)
Sound Propagation in Ducts 112(1)
Plane Wave Propagation 112(2)
Higher Order Mode Propagation 114(1)
Hybrid Active/Passive Silencers 114(1)
Sound Radiation From Vibrating Structures 114(1)
Physical Control Mechanisms 115(2)
Active Headsets and Ear Muffs 117(1)
Feedback Systems 118(3)
Feedforward Systems 121(1)
Transducer Considerations 122(1)
Sound Transmission Into Enclosed Spaces 123(4)
Global Reduction of Low Frequency Tonal 127(1)
Noise in Propeller Aircraft
Reduction of Interior Noise in Diesel 128(1)
Engine-Driven, Mobile Mining Equipment
Local Reduction of Broadband Noise in 128(1)
Large Aircraft
Global Reduction of Low Frequency Road 128(1)
Noise in Cars
Reduction of Low Frequency Sound 129(1)
Transmission Through Double Panel Walls
Active Vibration Isolation 129(1)
Reduction of Engine Noise Transmitted 129(1)
Into Passenger Cars in the Low to
Mid-Frequency Range
Reduction of Noise Generated by Naval 130(1)
Ships
Examples of Applications Which are 130(3)
Impractical
Global Reduction of Broadband or High 130(1)
Frequency Tonal Noise in Large Aircraft
Global Reduction of Broadband or 130(1)
Transient Noise Transmitted into a
Building Space
Reduction of Traffic or Aircraft Flyover 131(1)
Noise Transmitted into a Building
Global Reduction of Tonal or Periodic 131(1)
Noise in a Large Space Such as a Factory
That Contains Many Noise Sources
Global Reduction of Broadband Noise in a 131(1)
Large Factory
Reduction of Broadband Noise Outdoors 131(1)
Reduction of Transient Noise Outdoors 132(1)
REFERENCES 133(16)
APPENDIX A. A LITTLE MATHS 149(4)
A.1 Introduction 149(1)
A.2 Vectors 149(1)
A.3 Matrices 149(1)
A.4 Quadratic Optimisation 150(3)
APPENDIX B ADDITIONAL INFORMATION 153(2)
B.1 Current Research 153(1)
B.2 Useful Web-Sites for More Information 153(2)
B.2.1 General information 153(1)
B.2.2 Commercial Products and 154(1)
Demonstrations
B.2.3 Research Organisations and 154(1)
Universities
Index 155