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Table of contents
1 Introduction
1.1 Problem statement
1.2 Thesis Outline
2 The Radio Propagation Channel
2.1 Propagation Channel Model
2.2 Far-Field Region
2.3 Basic Antenna Properties
2.3.1 Radiation Pattern
2.3.2 Gain
2.3.3 Half-Power Beam Width
2.4 Free Space Path Loss
2.5 Circular Array
2.6 The Measured Voltage and the Normalized Incident Field
2.7 A Discrete Inverse Problem
2.8 Singular Value Decomposition (SVD)
2.9 Truncated Singular Value Decomposition
2.10 Choosing a Regularization Parameter
2.11 Dealing with the Solution to the Regularized Problem
2.12 Successive Interference Cancellation
2.13 Implementation in MATLAB
3 Simulation
3.1 Simulation Results
3.1.1 One Scatterer Case
3.1.2 Two Scatterer Case
3.1.3 Five and Ten Scatterer Cases
3.1.4 Simulation Comments
4 The Measurement System
4.1 Introduction to The Measurement System
4.2 MOLLY – A St¨aubli RX90L Robot
4.2.1 MOLLY definitions
4.2.2 Work envelope of MOLLY
4.2.3 Precision of MOLLY
4.3 Taxen – A 1-Dimensional Stepper
4.3.1 Precision of Taxen
4.4 Work envelope conclusion
4.5 Vector Network Analyzer
4.6 Measurement Times
4.7 Antennas
4.7.1 The Horn Antenna
4.7.2 The Dipole Antenna
5 Phase Center
5.1 Phase Center Setup
5.2 Phase Center Result
5.3 Phase Center Conclusion
6 The Measurement
6.1 Experiment Setups
6.1.1 Possible error sources
6.1.2 Setup 1
6.1.3 Setup 2
6.2 Measurement and Estimation Results
6.2.1 Setup 1
6.2.2 Setup 2
6.3 Discussion
6.3.1 Setup 1
6.3.2 Setup 2
7 Final Conclusions and Future work
7.1 Final Conclusions
7.2 Future Work
Appendices
