Adaptive Array Systems (eBook)

Ben Allen completed his MSc and PhD degrees at the University of Bristol, U.K., in 1997 and 2001 respectively. Having undertaken post-doctorial research in the areas of smart antennas andMIMOwireless systems, he then became a lecturer at the Centre for Telecommunications Research, King's College London where he co-founded the UWB research group. He is now with the Department of Engineering Science, University of Oxford. He has published numerous journal and conference papers in the above areas as well as a book on smart antennas. He has been in receipt of the IEE J Langham Thomson Premium and the ARMMS Best Paper Award, both for publications relating to UWB. He is a senior member of the IEEE, chartered engineer, member of the IEE, and a member of the IEE's Professional Network Executive Committee on Antennas and Propagation. puter Science Contest, Pakistan, in 1998. He is a member of the IEEE and the IET, and serves on the UK Task Group on Mobile and Terrestrial Propagation. Mohammad Ghavami is Reader at the Centre for Telecommunications Research, King's College London. From 1998 to 2000 he was a JSPS Postdoctoral fellow in Yokohama National University, Japan, and from 2000 to 2002 he was a researcher at the Sony Computer Science Laboratories, Inc. in Tokyo, Japan.

Preface.

Acknowledgments.

List of Figures.

List of Tables.

Introduction.

I.1 Adaptive Filtering.

I.2 Historical Aspects.

I.3 Concept of Spatial Signal Processing.

1 Fundamentals of Array Signal Processing.

1.1 Introduction.

1.2 The Key to Transmission.

1.3 Hertzian Dipole.

1.4 Antenna Parameters & Terminology.

1.5 Basic Antenna Elements.

1.6 Antenna Arrays.

1.7 Spatial Filtering.

1.8 Adaptive Antenna Arrays.

1.9 Mutual Coupling & Correlation.

1.10 Chapter Summary.

1.11 Problems.

2 Narrowband Array Systems.

2.1 Introduction.

2.2 Adaptive Antenna Terminology.

2.3 Beam Steering.

2.4 Grating Lobes.

2.5 Amplitude Weights.

2.6 Chapter Summary.

2.7 Problems.

3 Wideband Array Processing.

3.1 Introduction.

3.2 Basic concepts.

3.3 A Simple Delay-line Wideband Array.

3.4 Rectangular Arrays as Wideband Beamformers.

3.5 Wideband Beamforming using FIR Filters.

3.6 Chapter Summary.

3.7 Problems.

4 Adaptive Arrays.

4.1 Introduction.

4.2 Spatial Covariance Matrix.

4.3 Multi-beam Arrays.

4.4 Scanning Arrays.

4.5 Switched Beam Beamformers.

4.6 Fully Adaptive Beamformers.

4.7 Adaptive Algorithms.

4.8 Source Location Techniques.

4.9 Fourier Method.

4.10 Capon's Minimum Variance.

4.11 The MUSIC Algorithm.

4.12 ESPRIT.

4.13 Maximum Likelihood Techniques.

4.14 Spatial Smoothing.

4.15 Determination of Number of Signal Sources.

4.16 Blind Beamforming.

4.17 Chapter Summary.

4.18 Problems.

5 Practical Considerations.

5.1 Introduction.

5.2 Signal Processing Constraints.

5.3 Implementation Issues.

5.4 Radiowave Propagation.

5.5 Transmit Beamforming.

5.6 Chapter Summary.

5.7 Problems.

6 Applications.

6.1 Introduction.

6.2 Antenna Arrays for Radar Applications.

6.3 Antenna Arrays for Sonar Applications.

6.4 Antenna Arrays for Biomedical Applications.

6.5 Antenna Arrays for Wireless Communications.

6.6 Chapter Summary.

6.7 Problems.

References.

Index.