Electronically Scanned Arrays (ESAs) and K-Space Gain Formulation (eBook)
VIII, 113 Seiten
Springer International Publishing (Verlag)
978-3-030-04678-1 (ISBN)
This book fills in details that are often left out of modern books on the theory of antennas. The starting point is a discussion of some general principles that apply to all electronic systems and to antennas in particular. Just as time domain functions can be expanded in terms of sine waves using Fourier transforms, spatial domain functions can be expanded in terms of plane waves also using Fourier transforms, and K-space gain is the spatial Fourier transform of the aperture weighting function. Other topics discussed include the Discrete Fourier Transform (DFT) formulation of antenna gain and what is missing in this formulation, the effect of sky temperature on the often specified G/T ratio of antennas, sidelobe control using conventional and novel techniques, and ESA digital beamforming versus adaptive processing to limit interference.
Presents content the author derived when first asked to evaluate the performance of an electronically scanned array under design with manufacturing imperfections and design limitations;
Enables readers to understand the firm theoretical foundation of antenna gain even when they must start from well-known formulations rather than first principles;
Explains in a straightforward manner the relationship between antenna gain and aperture area;
Discusses the relationship between sidelobe control algorithms and aperture shape, how to take advantage of it, and what the penalties are;
Shows the equivalence of Minimum-Variance, Distortionless Response (MVDR) and Space-Time Adaptive Processing (STAP) and how these algorithms can be used with ESA subarrays to mitigate interference.
Roger A Dana received a Ph.D. in astrophysics from Stanford University. Afterwards he worked for 3 years at Hughes Aircraft Company Ground Systems Group where he learned about radar and decibels. The next 24 years were at Mission Research Corporation where he worked on trans-ionospheric RF propagation, channel models, and mitigation techniques for comm, nav, and radar systems. For the last 14 years he has been at the Advanced Technology Center of Rockwell Collins working on problems at the intersection of physics, mathematics, and electronic systems.
Roger A Dana received a Ph.D. in astrophysics from Stanford University. Afterwards he worked for 3 years at Hughes Aircraft Company Ground Systems Group where he learned about radar and decibels. The next 24 years were at Mission Research Corporation where he worked on trans-ionospheric RF propagation, channel models, and mitigation techniques for comm, nav, and radar systems. For the last 14 years he has been at the Advanced Technology Center of Rockwell Collins working on problems at the intersection of physics, mathematics, and electronic systems.
Introduction.- Basic Principles of RF Electronic Systems and Antennas.- K-Space Gain.- Effect of Sky Noise on Antenna Temperature.- Sidelobe Control and Monopulse Weighting.- Digital Beamforming and Adaptive Processing.
Erscheint lt. Verlag | 14.2.2019 |
---|---|
Zusatzinfo | VIII, 113 p. 48 illus., 20 illus. in color. |
Verlagsort | Cham |
Sprache | englisch |
Themenwelt | Technik ► Elektrotechnik / Energietechnik |
Schlagworte | Antenna gain • digital beamforming • Phase Array Antenna • RF Antennas and Circuits • RF Electronic Systems and Antennas |
ISBN-10 | 3-030-04678-8 / 3030046788 |
ISBN-13 | 978-3-030-04678-1 / 9783030046781 |
Haben Sie eine Frage zum Produkt? |
Größe: 7,3 MB
DRM: Digitales Wasserzeichen
Dieses eBook enthält ein digitales Wasserzeichen und ist damit für Sie personalisiert. Bei einer missbräuchlichen Weitergabe des eBooks an Dritte ist eine Rückverfolgung an die Quelle möglich.
Dateiformat: PDF (Portable Document Format)
Mit einem festen Seitenlayout eignet sich die PDF besonders für Fachbücher mit Spalten, Tabellen und Abbildungen. Eine PDF kann auf fast allen Geräten angezeigt werden, ist aber für kleine Displays (Smartphone, eReader) nur eingeschränkt geeignet.
Systemvoraussetzungen:
PC/Mac: Mit einem PC oder Mac können Sie dieses eBook lesen. Sie benötigen dafür einen PDF-Viewer - z.B. den Adobe Reader oder Adobe Digital Editions.
eReader: Dieses eBook kann mit (fast) allen eBook-Readern gelesen werden. Mit dem amazon-Kindle ist es aber nicht kompatibel.
Smartphone/Tablet: Egal ob Apple oder Android, dieses eBook können Sie lesen. Sie benötigen dafür einen PDF-Viewer - z.B. die kostenlose Adobe Digital Editions-App.
Buying eBooks from abroad
For tax law reasons we can sell eBooks just within Germany and Switzerland. Regrettably we cannot fulfill eBook-orders from other countries.
aus dem Bereich