Transmitter hunting : Radio direction fi
โ Curlee, T. N.; Moell, J. D.
๐ Library
๐
1987
๐ TAB Books
๐ English
โฆ LIBER โฆ
๐
Radio direction finding and superresolution
โ Scribed by Gething, P. J. D
- Publisher
- P. Peregrinus on behalf of the Institution of Electrical Engineers
- Year
- 1991
- Tongue
- English
- Leaves
- 385
- Series
- IEE electromagnetic waves series 33
- Edition
- 2nd ed
- Category
- Library
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โฆ Synopsis
Enlarged and revised second edition. Modern direction finders, capable of measuring elevation angles as well as azimuth angles on the components of multi-ray wavefields, have become powerful tools for research in ionospheric physics and HF radio propagation. The complexity of the problem of resolving closely-spaced rays requires the combined use of wide aperture antenna arrays, multichannel receiving systems and sophisticated digital processing techniques
โฆ Table of Contents
Content: * Chapter 1: Introduction * Chapter 2: Ionospheric modes * Chapter 3: Wave-field models * Chapter 4: Zero-aperture bearings in two-ray wave-fields * Chapter 5: Directive array patterns * Chapter 6: Instrumental and site errors * Chapter 7: An introduction to resolution techniques * Chapter 8: Wave interference effects for circular arrays * Chapter 9: Wave interference effects for interferometers * Chapter 10: Wavefront analysis: the concept * Chapter 11: Wavefront analysis using imperfect data * Chapter 12: Superresolution algorithms * Chapter 13: Additional tools for superresolution * Chapter 14: Ray paths * Chapter 15: The effects of ionospheric tilts * Chapter 16: Bearing accuracy and DF plots * Chapter 17: Conclusions * Appendix 1: Circular WADF: parameters used in pattern calculations * Appendix 2: The theory of multiplicative processing * Appendix 3: Vertical array ofloops: parameters used in pattern calculations * Appendix 4: An example of masquerading * Appendix 5: Covariance matrix of sensor outputs * Appendix 6: Magneto-ionic deviations calculated with the Jones three-dimensional ray-tracing program * Appendix 7: Path integrals for parabolic layers * Appendix 8: The effective tilt of a parabolic layer * Appendix 9: Standard deviations of the best point estimate
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